linux获取shell脚本所在绝对路径操作介绍,linux shell 获取命令输出值

脚本名：a.sh位置：/tmp/whuang/study/java脚本内容：

复制代码 代码如下:

#!/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：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