腳本名:a.sh
位置:/tmp/whuang/study/java
腳本內容:
代碼如下:
#!/bin/sh
this_dir=`pwd`
dirname $0|grep "^/" >/dev/null
if [ $? -eq 0 ];then
this_dir=`dirname $0`
else
dirname $0|grep "^." >/dev/null
retval=$?
if [ $retval -eq 0 ];then
this_dir=`dirname $0|sed "s#^.#$this_dir#"`
else
this_dir=`dirname $0|sed "s#^#$this_dir/#"`
fi
fi
echo $this_dir
----------------------------------------------
功能:獲取腳本的絕對路徑。
測試:
[root@ppc40 java]# pwd
/tmp/whuang/study/java
[root@ppc40 java]# sh a.sh
/tmp/whuang/study/java
[root@ppc40 java]# cd ..
[root@ppc40 study]# sh java/a.sh
/tmp/whuang/study/java
[root@ppc40 study]# sh ./java/a.sh
/tmp/whuang/study/java