bash loop

loop with seq

#!/bin/bash

for n in seq 1 3 100
do
echo $n
done

loop find mv

#!/bin/bash

for i  in {1..14}
do 
	# echo $i
	# echo 'map_'$i'*.png'

	# find . -maxdepth 1 -regex '.*map_'$i'.*'

	
	# find . -name 'map_'$i'*.png'

	echo map_$i-*.png
	mv map_$i-*.png 222
	
done

ls only folder

ls -d */

/ is a pattern that matches all of the subdirectories in the current directory ( would match all files and subdirectories; the / restricts it to directories). Similarly, to list all subdirectories under /home/alice/Documents, use ls -d /home/alice/Documents/*/

查找系统中所有文件长度为0的普通文件，并列出它们的完整路径

find / -type f -size 0 -exec ls -l {} ;

vi .bash_profile

alias lf=”ls -l | egrep -v ‘^d’”
alias ldir=’ls -d */‘

lf 只显示文件
ldir 只显示目录