首页检查/etc/resolv.conf是否为空的shell脚本

检查/etc/resolv.conf是否为空的shell脚本

时间: 2023-12-19 10:07:14 浏览: 116

判断文件是否存在的shell脚本代码

实现代码一、 #!/bin/sh # 判断文件是否存在 # link：www.jb51.net # date：2013/2/28 myPath=/var/log/httpd/ myFile=/var /log/httpd/access.log # 这里的-x 参数判断$myPath是否存在并且是否具有可执行权限 if [ ! -x $myPath]; then mkdir $myPath fi # 这里的-d 参数判断$myPath是否存在 if [ ! -d $myPath]; then mkdir $myPath fi # 这里的-f参数判断$myFile是否

#!/bin/bash if [[ ! -s "/etc/resolv.conf" ]]; then echo "The file /etc/resolv.conf is empty" else echo "The file /etc/resolv.conf is not empty" fi Explanation: This script checks if the file /etc/resolv.conf is empty or not. The "-s" option of the "test" command (also known as "[") returns true if the file exists and has a size greater than zero. The "!" operator negates the test, so the script echoes a message indicating that the file is empty if the test fails (i.e., the file does not exist or has a size of zero). If the test succeeds, the script echoes a message indicating that the file is not empty.

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