CODE:
#!/bin/bash
str=$' \t \thello, world'
nBlank=0
for ((i = 0; i < ${#str}; ++i)); do
if [[ "${str:i:1}" == [[:blank:]] ]]; then
((++nBlank))
else
break
fi
done
echo $nBlank转自： http://bbs.chinaunix.net/thread-991202-1-1.html
最新回复
CODE:
[root@CNCRoom ~]# STR=" Just For TEST"以后要好好的学学shell[root@CNCRoom ~]# echo $STR
Just For TEST
[root@CNCRoom ~]# echo "$STR"
Just For TEST
[root@CNCRoom ~]#