sed -i "s@AAAAA@BBBBB@g" /home/local/payment-biz-service/env/test.txt
sed -i "s#htxk.*#htxkAAAAA#g" /home/local/payment-biz-service/env/test.txt
案例使用：
项目中经常需要更改数据库链接地址，由于是多个项目同时更换
所以使用sed批量更改
将/home/local/payment-biz-service/env/目录下的db.propertiesbak文件中连接信息
jdbc.url=jdbc:mysql://192.168.10.101:3306/snsdb_test?allowMultiQueries=true
改成
jdbc.url=jdbc:mysql://192.168.10.71:3306/sportdb_test?allowMultiQueries=true
命令如下：
sed -i "s@mysql://192.168.10.101:3306/snsdb_test?allowMultiQueries=true@mysql://192.168.10.71:3306/sportdb_test?allowMultiQueries=true@g" /home/local/payment-biz-service/env/db.propertiesbak
案例2：如果需要批量替换多个目录的db.properties文件内容呢？
分2步实现：
1.获取所有需要修改的db.properties文件列表
find / -type f -path '/home/local/*-service/env/db.*' -type f ! -path "*bak*" -type f ! -path "*db.properties_*"
2.执行批量修改命令
find / -type f -path '/home/local/*-service/env/db.*' -type f ! -path "*bak*" -type f ! -path "*db.properties_*" | xargs sed -i "s@mysql://192.168.10.101:3306/snsdb_test?allowMultiQueries=true@mysql://192.168.10.71:3306/snsdb_test?allowMultiQueries=true@g"
http://blog.csdn.net/devwang_com/article/details/52457591
http://www.jb51.net/article/59204.htm
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