update NSH docs
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@875 42af7a65-404d-4744-a932-0658087f49c3
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@ -254,6 +254,11 @@
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<a href="#nshconfiguration">3.2 NSH-Specific Configuration Settings</a>
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</td>
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</tr>
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<tr>
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<td><img src="favicon.ico"></td>
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<td>
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<a href="#index">Index</a>
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</td>
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</table>
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</td>
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</tr>
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@ -415,7 +420,7 @@ fi
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<b><code>cd</code> and <code>pwd</code></b>.
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All path arguments to commands may be either an absolute path or a
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path relative to the current working directory. The current working
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directory is set using the 'cd' command and can be queried either
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directory is set using the <a href="#cmdcd"><code>cd</code></a> command and can be queried either
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by using the <a href="#cmdpwd"><code>pwd</code></a> command or by
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using the <a href="#cmdecho"><code>echo</code></a> <a href="#environvars"><code>$PWD</code></a>
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command.
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@ -849,6 +854,33 @@ nsh>
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</tr>
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</table>
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<p><b>Command Syntax:</b></p>
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<ul><pre>
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mkdir <path>
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</pre></ul>
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<p>
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<b>Synopsis</b>.
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Create the directory at <code><path></code>.
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All components of of <code><path></code> except the final directory name must exist on a mounted file
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system; the final directory must not.
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</p>
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<p>
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<b>Limited to Mounted File Systems</b>.
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Recall that NuttX uses a <a href="NuttxUserGuide.html#FileSystemOverview"><i>pseudo</i> filesystem</a> for its root file
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system.
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The <code>mkdir</code> command can only be used to create directories in volumes set up with the
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<a href="#cmdmount"><code>mount</code></a> command; it cannot be used to create directories in the <i>pseudo</i> filesystem.
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</p>
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<p><b>Example:</b></p>
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<ul><pre>
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nsh> mkdir /mnt/fs/tmp
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nsh> ls -l /mnt/fs
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/mnt/fs:
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drw-rw-rw- 0 TESTDIR/
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drw-rw-rw- 0 TMP/
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nsh>
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</pre></ul>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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@ -857,6 +889,18 @@ nsh>
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</tr>
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</table>
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<p><b>Command Syntax:</b></p>
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<ul><pre>
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mkfatfs <path>
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</pre></ul>
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<p>
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<b>Synopsis</b>.
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Format a fat file system on the block device specified by <code><path></code>.
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NSH provides this command to access the <a href="mkfatfs"><code>mkfatfs()</code></a> NuttX API.
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This block device must reside in the NuttX <a href="NuttxUserGuide.html#FileSystemOverview"><i>pseudo</i> filesystem</a> and
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must have been created by some call to <code>register_blockdriver()</code> (see <code>include/nuttx/fs.h</code>).
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</p>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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@ -865,6 +909,36 @@ nsh>
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</tr>
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</table>
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<p><b>Command Syntax:</b></p>
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<ul><pre>
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mkfifo <path>
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</pre></ul>
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<p>
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<b>Synopsis</b>.
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Creates a FIFO character device anywhere in the pseudo file system, creating
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whatever psuedo directories that may be needed to complete the <code><path></code>.
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By convention, however, device drivers are place in the standard <code>/dev</code> directory.
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After it is created, the FIFO device may be used as any other device driver.
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NSH provides this command to access the <a href="NuttxUserGuide.html#mkfifo"><code>mkfifo()</code></a> NuttX API.
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</p>
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<p><b>Example</b></p>
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<ul><pre>
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nsh> ls -l /dev
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/dev:
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crw-rw-rw- 0 console
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crw-rw-rw- 0 null
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brw-rw-rw- 0 ram0
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nsh> mkfifo /dev/fifo
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nsh> ls -l /dev
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ls -l /dev
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/dev:
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crw-rw-rw- 0 console
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crw-rw-rw- 0 fifo
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crw-rw-rw- 0 null
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brw-rw-rw- 0 ram0
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nsh>
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</pre></ul>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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@ -873,6 +947,65 @@ nsh>
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</tr>
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</table>
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<p><b>Command Syntax:</b></p>
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<ul><pre>
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mount -t <fstype> <block-device> <code><dir-path></code>
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</pre></ul>
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<p>
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<b>Synopsis</b>.
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The 'm ount' command mounts a file system in the NuttX psuedo
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filesystem. 'mount' performs a three way associating, binding:
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</p>
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<ol>
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<li><b>File system.</b>
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The '-t <code><fstype></code>' option identifies the type of
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file system that has been formatted on the <code><block-device></code>.
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As of this writing, <code>vfat</code> is the only supported value for <code><fstype></code>
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</li>
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<li><b>Block Device.</b>
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The <code><block-device></code> argument is the full or relative
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path to a block driver inode in the <a href="NuttxUserGuide.html#FileSystemOverview"><i>pseudo</i> filesystem</a>.
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By convention, this is a name under the <code>/dev</code> sub-directory.
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This <code><block-device></code> must have been previously formatted with the same file system
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type as specified by <code><fstype></code>
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</li>
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<li><b>Mount Point.</b>
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The mount point, <code><dir-path></code>, is the location in the
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<a href="NuttxUserGuide.html#FileSystemOverview"><i>pseudo</i> filesystem</a> where the mounted volume will appear.
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This mount point can only reside in the NuttX <a href="NuttxUserGuide.html#FileSystemOverview"><i>pseudo</i> filesystem</a>.
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By convention, this mount point is a subdirectory under <code>/mnt</code>.
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The mount command will create whatever psuedo directories that may be needed to complete the
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full path but the full path must not already exist.
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</li>
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</ol>
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<p>
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After the the volume has been mounted in the NuttX
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<a href="NuttxUserGuide.html#FileSystemOverview"><i>pseudo</i> filesystem</a>,
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it may be access in the same way as other objects in thefile system.
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</p>
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<p><b>Example</b></p>
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<ul><pre>
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nsh> ls -l /dev
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/dev:
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crw-rw-rw- 0 console
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crw-rw-rw- 0 null
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brw-rw-rw- 0 ram0
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nsh> ls /mnt
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nsh: ls: no such directory: /mnt
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nsh> mount -t vfat /dev/ram0 /mnt/fs
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nsh> ls -l /mnt/fs/testdir
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/mnt/fs/testdir:
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-rw-rw-rw- 15 TESTFILE.TXT
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nsh> echo "This is a test" >/mnt/fs/testdir/example.txt
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nsh> ls -l /mnt/fs/testdir
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/mnt/fs/testdir:
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-rw-rw-rw- 15 TESTFILE.TXT
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-rw-rw-rw- 16 EXAMPLE.TXT
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nsh> cat /mnt/fs/testdir/example.txt
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This is a test
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nsh>
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</pre></ul>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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@ -944,6 +1077,32 @@ nsh>
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</tr>
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</table>
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<a <p><b>Command Syntax:</b></p>
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<ul><pre>
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rm <file-path>
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</pre></ul>
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<p>
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<b>Synopsis</b>.
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Remove the specified <code><file-path></code> name from the mounted file system.
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Recall that NuttX uses a <a href="NuttxUserGuide.html#FileSystemOverview"><i>pseudo</i> filesystem</a> for its root file
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system.
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The <code>rm</code> command can only be used to remove (unlink) files in volumes set up with the
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<a href="#cmdmount"><code>mount</code></a> command;
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it cannot be used to remove names in the <i>pseudo</i> filesystem.
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</p>
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<p><b>Example:</b></p>
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<ul><pre>
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nsh> ls /mnt/fs/testdir
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/mnt/fs/testdir:
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TESTFILE.TXT
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EXAMPLE.TXT
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nsh> rm /mnt/fs/testdir/example.txt
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nsh> ls /mnt/fs/testdir
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/mnt/fs/testdir:
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TESTFILE.TXT
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nsh>
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</pre></ul>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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@ -952,6 +1111,33 @@ nsh>
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</tr>
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</table>
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<a <p><b>Command Syntax:</b></p>
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<ul><pre>
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rmdir <dir-path>
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</pre></ul>
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<p>
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<b>Synopsis</b>.
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Remove the specified <code><dir-path></code> directory from the mounted file system.
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Recall that NuttX uses a <a href="NuttxUserGuide.html#FileSystemOverview"><i>pseudo</i> filesystem</a> for its root file
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system.
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The <code>rmdir</code> command can only be used to remove directories from volumes set up with the
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<a href="#cmdmount"><code>mount</code></a> command;
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it cannot be used to remove directories from the <i>pseudo</i> filesystem.
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</p>
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<p><b>Example:</b></p>
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<ul><pre>
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nsh> mkdir /mnt/fs/tmp
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nsh> ls -l /mnt/fs
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/mnt/fs:
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drw-rw-rw- 0 TESTDIR/
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drw-rw-rw- 0 TMP/
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nsh> rmdir /mnt/fs/tmp
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nsh> ls -l /mnt/fs
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/mnt/fs:
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drw-rw-rw- 0 TESTDIR/
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nsh>
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</pre></ul>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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@ -1021,6 +1207,28 @@ sleep <sec>
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</tr>
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</table>
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<a <p><b>Command Syntax:</b></p>
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<ul><pre>
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umount <dir-path>
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</pre></ul>
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<p>
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<b>Synopsis</b>.
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Un-mount the file system at mount point <code><dir-path></code>.
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The <code>umount</code> command can only be used to un-mount volumes previously mounted using
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<a href="#cmdmount"><code>mount</code></a> command.
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</p>
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<p><b>Example:</b></p>
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<ul><pre>
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nsh> ls /mnt/fs
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/mnt/fs:
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TESTDIR/
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nsh> umount /mnt/fs
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nsh> ls /mnt/fs
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/mnt/fs:
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nsh: ls: no such directory: /mnt/fs
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nsh>
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</pre></ul>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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@ -1228,28 +1436,28 @@ usleep <usec>
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<th align="left">Description</th>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_FILEIOSIZE</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_FILEIOSIZE</code></b></td>
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<td>
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Size of a static I/O buffer used for file access (ignored if
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there is no filesystem).
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_STRERROR</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_STRERROR</code></b></td>
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<td>
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strerror(errno) makes more readable output but strerror() is
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very large and will not be used unless this setting is <i>y</i>
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_LINELEN</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_LINELEN</code></b></td>
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<td>
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The maximum length of one command line and of one output line.
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Default: 80
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_STACKSIZE</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_STACKSIZE</code></b></td>
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<td>
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The stack size to use when spawning new threads or tasks. Such
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new threads are generated when a command is executed in background
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@ -1257,14 +1465,14 @@ usleep <usec>
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_NESTDEPTH</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_NESTDEPTH</code></b></td>
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<td>
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The maximum number of nested <a href="#conditional"><code>if-then[-else]-fi</code></a> sequences that
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are permissable. Default: 3
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_DISABLESCRIPT</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_DISABLESCRIPT</code></b></td>
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<td>
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This can be set to <i>y</i> to suppress support for scripting. This
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setting disables the <a href="#cmdsh"><code>sh</code></a>, <a href="#cmdtest"><code>test</code></a>, and <a href="#cmtest"><code>[</code></a> commands and the
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_DISABLEBG</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_DISABLEBG</code></b></td>
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<td>
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This can be set to <i>y</i> to suppress support for background
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commands. This setting disables the <a href="#cmdoverview"><code>nice</code></a> command prefix and
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@ -1282,14 +1490,14 @@ usleep <usec>
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_CONSOLE</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_CONSOLE</code></b></td>
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<td>
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If <code>CONFIG_EXAMPLES_NSH_CONSOLE</code>is set to <i>y</i>, then a serial
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console front-end is selected.
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_TELNET</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_TELNET</code></b></td>
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<td>
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If <code>CONFIG_EXAMPLES_NSH_TELNET</code> is set to <i>y</i>, then a TELENET
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server front-end is selected. When this option is provided,
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@ -1297,7 +1505,7 @@ usleep <usec>
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access NSH.
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</td>
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</tr>
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</table>
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</table></center>
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<p>
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One or both of <code>CONFIG_EXAMPLES_NSH_CONSOLE</code> and <code>CONFIG_EXAMPLES_NSH_TELNET</code>
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@ -1310,46 +1518,126 @@ usleep <usec>
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<th align="left" width="25%">Configuration</th>
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<th align="left">Description</th>
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</tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE</code></b></td>
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<td>
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Determines the size of the I/O buffer to use for sending/
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receiving TELNET commands/reponses
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_DHCPC</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_DHCPC</code></b></td>
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<td>
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Obtain the the IP address via DHCP.
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_IPADDR</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_IPADDR</code></b></td>
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<td>
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If <code>CONFIG_EXAMPLES_NSH_DHCPC</code> is NOT set, then the static IP
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address must be provided.
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_DRIPADDR</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_DRIPADDR</code></b></td>
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<td>
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Default router IP address
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_NETMASK</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_NETMASK</code></b></td>
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<td>
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Network mask
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</td>
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</tr>
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<tr>
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<td><br><code>CONFIG_EXAMPLES_NSH_NOMAC</code></b></td>
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<td valign="top"><b><code>CONFIG_EXAMPLES_NSH_NOMAC</code></b></td>
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<td>
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Set if your ethernet hardware has no built-in MAC address.
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If set, a bogus MAC will be assigned.
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</td>
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</tr>
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</table></center>
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<table width ="100%">
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<tr bgcolor="#e4e4e4">
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<td>
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<a name="index"><h1>Index</h1></a>
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
|
||||
<table width="100%">
|
||||
<tr><td width="50%">
|
||||
<ul>
|
||||
<li><a href="#builtinvars"><code>$?</code></a></li>
|
||||
<li><a href="#cmdtest"><code>[</code></a></li>
|
||||
<li><a href="#cmdoverview">Background commands</a></li>
|
||||
<li><a href="#cmdoverview">Background command priority</a></li>
|
||||
<li><a href="#builtinvars">Built-in variables</a></li>
|
||||
<li><a href="#cmdcat"><code>cat</code></a></li>
|
||||
<li><a href="#cmdcd"><code>cd</code></a></li>
|
||||
<li><a href="#commands">Command summaries</a></li>
|
||||
<li><a href="#conditional">Conditional command execution</a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_CONSOLE</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_DHCPC</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_DISABLEBG</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_DISABLESCRIPT</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_DRIPADDR</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_FILEIOSIZE</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_IPADDR</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_LINELEN</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_NESTDEPTH</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_NETMASK</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_NOMAC</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_STACKSIZE</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_STRERROR</code></a></li>
|
||||
<li><a href="#nshconfiguration"><code>CONFIG_EXAMPLES_NSH_TELNET</code></a></li>
|
||||
<li><a href="#configuration">Configuration settings</a></li>
|
||||
<li><a href="#cmddependencies">Configuration settings, command dependencies</a></li>
|
||||
<li><a href="#nshconfiguration">Configuration settings, NSH-specific</a></li>
|
||||
<li><a href="#cmdcp"><code>cp</code></a></li>
|
||||
<li><a href="#currentwd">Current working directory</a></li>
|
||||
<li><a href="#cmdecho"><code>echo</code></a></li>
|
||||
<li><a href="#environvars">Environment Variables</a></li>
|
||||
<li><a href="#cmdexec"><code>exec</code></a></li>
|
||||
<li><a href="#cmdexit"><code>exit</code></a></li>
|
||||
</ul></td>
|
||||
<td></ul>
|
||||
<li><a href="#frontend">Greeting</a></li>
|
||||
<li><a href="#cmdhelp"><code>help</code></a></li>
|
||||
<li><a href="#conditional"><code>if-then[-else]-fi</code></a></li>
|
||||
<li><a href="#cmdifconfig"><code>ifconfig</code></a></li>
|
||||
<li><a href="#cmdls">ls</code></a></li>
|
||||
<li><a href="#cmdmbhw"><code>mb</code></a></li>
|
||||
<li><a href="#cmdmbhw"><code>mh</code></a></li>
|
||||
<li><a href="#cmdmbhw"><code>mw</code></a></li>
|
||||
<li><a href="#cmdmem"><code>mem</code></a></li>
|
||||
<li><a href="#cmdmkdir"><code>mkdir</code></a></li>
|
||||
<li><a href="#cmdmkfatfs"><code>mkfatfs</code></a></li>
|
||||
<li><a href="#cmdmkfifo"><code>mkfifo</code></a></li>
|
||||
<li><a href="#cmdmount"><code>mount</code></a></li>
|
||||
<li><a href="#cmdoverview"><code>nice</code></a></li>
|
||||
<li><a href="#environvars"><code>OLDPWD</code></a></li>
|
||||
<li><a href="#overview">Overview</a></li>
|
||||
<li><a href="#cmdping"><code>ping</code></a></li>
|
||||
<li><a href="#frontend">Prompt</a></li>
|
||||
<li><a href="#cmdps"><code>ps</code></a></li>
|
||||
<li><a href="#cmdpwd"><code>pwd</code></a></li>
|
||||
<li><a href="#environvars"><code>PWD</code></a></li>
|
||||
<li><a href="#cmdoverview">Re-directed commands</a></li>
|
||||
<li><a href="#cmdrm"><code>rm</code></a></li>
|
||||
<li><a href="#cmdrmdir"><code>rmdir</code></a></li>
|
||||
<li><a href="#cmdset"><code>set</code></a></li>
|
||||
<li><a href="#cmdsh"><code>sh</code></a></li>
|
||||
<li><a href="#cmdoverview">Simple commands</a></li>
|
||||
<li><a href="#cmdsleep"><code>sleep</code></a></li>
|
||||
<li><a href="#cmdtest"><code>test</code></a></li>
|
||||
<li><a href="#cmdunmount"><code>umount</code></a></li>
|
||||
<li><a href="#cmdunset"><code>unset</code></a></li>
|
||||
<li><a href="#cmdusleep"><code>usleep</code></a></li>
|
||||
</ul></td>
|
||||
</tr></table>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@ -1075,7 +1075,7 @@ nuttx-0.3.14 2008-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
ping request logic.
|
||||
* NSH: Add ping command
|
||||
* Correct IP checksum calculation in ICMP and UDP message send logic.
|
||||
* NSH: Created a more detailed README file for NSH.
|
||||
* NSH: Created an HTML document and a more detailed README file describing NSH.
|
||||
|
||||
pascal-0.1.3 2008-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
|
||||
|
||||
@ -6093,7 +6093,7 @@ int mkfatfs(FAR const char *pathname, FAR struct fat_format_s *fmt);
|
||||
<b>Description:</b>
|
||||
<ul>
|
||||
<p>
|
||||
The <code>mkfafs()</code> formats a FAT file system image on the block
|
||||
The <code>mkfats()</code> formats a FAT file system image on the block
|
||||
device specified by <code>pathname</code>
|
||||
</p>
|
||||
<p>Assumptions: The caller must assure that the block driver is not mounted and not in
|
||||
|
||||
Loading…
Reference in New Issue
Block a user