termux-packages/packages/termux-tools/login

#!/data/data/com.termux/files/usr/bin/sh

if [ $# = 0 ] && [ -f $PREFIX/etc/motd ] && [ ! -f ~/.hushlogin ]; then
	cat $PREFIX/etc/motd
fi

if [ -G ~/.termux/shell ]; then
	export SHELL="`realpath ~/.termux/shell`"
else
	for file in $PREFIX/bin/bash $PREFIX/bin/sh /system/bin/sh; do
		if [ -x $file ]; then
			export SHELL=$file
			break
		fi
	done
fi

if [ -f $PREFIX/lib/libtermux-exec.so ]; then
	export LD_PRELOAD=$PREFIX/lib/libtermux-exec.so
	$SHELL -c "busybox true" > /dev/null 2>&1 || unset LD_PRELOAD
fi

exec "$SHELL" -l "$@"