脚本名：a.sh
位置：/tmp/whuang/study/Java
脚本内容：
Shell代码
- #!/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：获取脚本的绝对路径。
测试：
[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
