脚本-grep搜索脚本

版权声明：Summer https://blog.csdn.net/csdnyanglei/article/details/82109450

#!/bin/bash
# file name     : silent_grep.sh
# usage         : 测试一个文本里是否含有某个字符串            

if [ $# -ne 2  ] ;then
        echo "Usage:$0 match_text file name"
        echo 1
fi

match_text=$1
filename=$2
# -q 静默搜索，不打印搜索结果，只返回是否匹配上（0）或未匹配上（非0）
grep -q "$match_text" $filename

if [ $? -eq 0   ];then
        echo "The text exists in the file"
else
        echo "Text does not exist in the file"
fi