Update Document
This commit is contained in:
Gregory Nutt
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<h1><big><font color="#3c34ec"><i>NuttShell (NSH)</i></font></big></h1>
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<p>Last Updated: February 2, 2017</p>
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<p>Last Updated: February 5, 2017</p>
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@ -377,115 +377,121 @@
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdreboot">2.49 Reset and reboot the system (reboot)</a>
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<a href="#cmdreadlink">2.49 Show target of a link (readlink)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdrm">2.50 Remove a File (rm)</a>
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<a href="#cmdreboot">2.50 Reset and reboot the system (reboot)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdrmdir">2.51 Remove a Directory (rmdir)</a>
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<a href="#cmdrm">2.51 Remove a File (rm)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdrmmod">2.52 Remove on OS Module (rmmod)</a>
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<a href="#cmdrmdir">2.52 Remove a Directory (rmdir)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdset">2.53 Set an Environment Variable (set)</a>
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<a href="#cmdrmmod">2.53 Remove on OS Module (rmmod)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdsh">2.54 Execute an NSH Script (sh)</a>
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<a href="#cmdset">2.54 Set an Environment Variable (set)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdshutdown">2.55 Shut the system down (shutdown)</a>
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<a href="#cmdsh">2.55 Execute an NSH Script (sh)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdsleep">2.56 Wait for Seconds (sleep)</a>
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<a href="#cmdshutdown">2.56 Shut the system down (shutdown)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdtime">2.57 Time execution of another command (time)</a>
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<a href="#cmdsleep">2.57 Wait for Seconds (sleep)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdunmount">2.58 Unmount a File System (umount)</a>
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<a href="#cmdtime">2.58 Time execution of another command (time)</a>
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</td>
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</tr>
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<td><br></td>
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<td>
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<a href="#cmduname">2.59 Print system information (uname)</a>
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<a href="#cmdunmount">2.59 Unmount a File System (umount)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdunset">2.60 Unset an Environment Variable (unset)</a>
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<a href="#cmduname">2.60 Print system information (uname)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdurldec">2.61 URL Decode (urldecode)</a>
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<a href="#cmdunset">2.61 Unset an Environment Variable (unset)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdurlencode">2.62 URL Encode (urlencode)</a>
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<a href="#cmdurldec">2.62 URL Decode (urldecode)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmduseradd">2.63 Add a New User (useradd)</a>
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<a href="#cmdurlencode">2.63 URL Encode (urlencode)</a>
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</td>
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</tr>
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<td><br></td>
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<td>
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<a href="#cmduserdel">2.64 Delete a user (userdel)</a>
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<a href="#cmduseradd">2.64 Add a New User (useradd)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdusleep">2.65 Wait for Microseconds (usleep)</a>
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<a href="#cmduserdel">2.65 Delete a user (userdel)</a>
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</td>
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</tr>
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<td><br></td>
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<td>
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<a href="#cmdwget">2.66 Get File Via HTTP (wget)</a>
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<a href="#cmdusleep">2.66 Wait for Microseconds (usleep)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdxd">2.67 Hexadecimal Dump of Memory (xd)</a>
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<a href="#cmdwget">2.67 Get File Via HTTP (wget)</a>
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</td>
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</tr>
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<tr>
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<td><br></td>
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<td>
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<a href="#cmdxd">2.68 Hexadecimal Dump of Memory (xd)</a>
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</td>
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</tr>
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<tr>
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@ -2560,7 +2566,24 @@ nsh>
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<table width ="100%">
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<td>
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<a name="cmdreboot"><h2>2.49 Reboot the system (reboot)</h2></a>
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<a name="cmdreadlink"><h2>2.49 Show target of a link (readlink)</h2></a>
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</td>
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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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readlink <link>
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</pre></ul>
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<p>
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<b>Synopsis</b>.
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Show the target of the soft link at the path <code><link></code>.
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</p>
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<table width ="100%">
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<td>
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<a name="cmdreboot"><h2>2.50 Reboot the system (reboot)</h2></a>
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</td>
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</tr>
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</table>
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Reset and reboot the system immediately.
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This command depends on hardware support to reset the system.
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</p>
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<p>
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<p>
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NOTE: Supporting both the <code>reboot</code> and <code>shutdown</code> commands is redundant.
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</p>
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@ -2582,7 +2604,7 @@ reboot
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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="cmdrm"><h2>2.50 Remove a File (rm)</h2></a>
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<a name="cmdrm"><h2>2.51 Remove a File (rm)</h2></a>
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</td>
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</tr>
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</table>
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@ -2616,7 +2638,7 @@ nsh>
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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="cmdrmdir"><h2>2.51 Remove a Directory (rmdir)</h2></a>
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<a name="cmdrmdir"><h2>2.52 Remove a Directory (rmdir)</h2></a>
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</td>
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</tr>
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</table>
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@ -2651,7 +2673,7 @@ nsh>
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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="cmdrmmod"><h2>2.52 Remove on OS Module (rmmod)</h2></a>
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<a name="cmdrmmod"><h2>2.53 Remove on OS Module (rmmod)</h2></a>
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</td>
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</tr>
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</table>
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@ -2679,7 +2701,7 @@ nsh>
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<table width ="100%">
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<td>
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<a name="cmdset"><h2>2.53 Set an Environment Variable (set)</h2></a>
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<a name="cmdset"><h2>2.54 Set an Environment Variable (set)</h2></a>
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</td>
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</tr>
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</table>
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@ -2705,7 +2727,7 @@ nsh>
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<table width ="100%">
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<td>
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<a name="cmdsh"><h2>2.54 Execute an NSH Script (sh)</h2></a>
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<a name="cmdsh"><h2>2.55 Execute an NSH Script (sh)</h2></a>
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</td>
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</tr>
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</table>
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@ -2724,7 +2746,7 @@ sh <script-path>
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<table width ="100%">
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<td>
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<a name="cmdshutdown"><h2>2.55 Shut the system down (shutdown)</h2></a>
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<a name="cmdshutdown"><h2>2.56 Shut the system down (shutdown)</h2></a>
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</td>
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</tr>
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</table>
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@ -2745,7 +2767,7 @@ shutdown [--reboot]
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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="cmdsleep"><h2>2.56 Wait for Seconds (sleep)</h2></a>
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<a name="cmdsleep"><h2>2.57 Wait for Seconds (sleep)</h2></a>
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</td>
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</tr>
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</table>
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@ -2762,7 +2784,7 @@ sleep <sec>
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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="cmdtime"><h2>2.57 Time execution of another command (time)</h2></a>
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<a name="cmdtime"><h2>2.58 Time execution of another command (time)</h2></a>
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</td>
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</tr>
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</table>
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@ -2821,7 +2843,7 @@ nsh>
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<table width ="100%">
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<td>
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<a name="cmdunmount"><h2>2.58 Unmount a File System (umount)</h2></a>
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<a name="cmdunmount"><h2>2.59 Unmount a File System (umount)</h2></a>
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</td>
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</tr>
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</table>
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@ -2851,7 +2873,7 @@ nsh>
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<table width ="100%">
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<td>
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<a name="cmduname"><h2>2.59 Print system information (uname)</h2></a>
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<a name="cmduname"><h2>2.60 Print system information (uname)</h2></a>
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</td>
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</tr>
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</table>
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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="cmdunset"><h2>2.60 Unset an Environment Variable (unset)</h2></a>
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<a name="cmdunset"><h2>2.61 Unset an Environment Variable (unset)</h2></a>
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</td>
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</tr>
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</table>
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<table width ="100%">
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<td>
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<a name="cmdurldec"><h2>2.61 URL Decode (urldecode)</h2></a>
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<a name="cmdurldec"><h2>2.62 URL Decode (urldecode)</h2></a>
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</td>
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</tr>
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</table>
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<table width ="100%">
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<td>
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<a name="cmdurlencode"><h2>2.62 URL Encode (urlencode)</h2></a>
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<a name="cmdurlencode"><h2>2.63 URL Encode (urlencode)</h2></a>
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</td>
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</tr>
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</table>
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@ -2978,7 +3000,7 @@ urlencode [-f] <string or filepath>
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<table width ="100%">
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<td>
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<a name="cmduseradd"><h2>2.63 Add a New User (useradd)</h2></a>
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<a name="cmduseradd"><h2>2.64 Add a New User (useradd)</h2></a>
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</td>
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</tr>
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</table>
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@ -2995,7 +3017,7 @@ useradd <username> <password>
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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="cmduserdel"><h2>2.64 Delete a user (userdel)</h2></a>
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<a name="cmduserdel"><h2>2.65 Delete a user (userdel)</h2></a>
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</td>
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</tr>
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</table>
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<table width ="100%">
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<td>
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<a name="cmdusleep"><h2>2.65 Wait for Microseconds (usleep)</h2></a>
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<a name="cmdusleep"><h2>2.66 Wait for Microseconds (usleep)</h2></a>
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</td>
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</tr>
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</table>
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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="cmdwget"><h2>2.66 Get File Via HTTP (wget)</h2></a>
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<a name="cmdwget"><h2>2.67 Get File Via HTTP (wget)</h2></a>
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</td>
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</tr>
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</table>
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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="cmdxd"><h2>2.67 Hexadecimal Dump of Memory (xd)</h2></a>
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<a name="cmdxd"><h2>2.68 Hexadecimal Dump of Memory (xd)</h2></a>
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</td>
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</tr>
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</table>
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@ -5294,6 +5316,7 @@ xxd -i romfs_img >nsh_romfsimg.h
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<li><a href="#cmdpwd"><code>pwd</code></a></li>
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<li><a href="#environvars"><code>PWD</code></a></li>
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<li><a href="#custinit"><code>rcS.template</code></a></li>
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<li><a href="#cmdreadlink"><code>readlink</code></a></li>
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<li><a href="#cmdreboot"><code>reboot</code></a></li>
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<li><a href="#cmdoverview">Re-directed commands</a></li>
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<li><a href="#custapps">Registration of builtin applications</a></li>
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