sed - 使用 sed 替换文本文件中的“localhost”

Question

我有这样的文件，我想$GLOBALS['SERVER_MEMCACHED']='localhost';用$GLOBALS['SERVER_MEMCACHED']='mydomain.com';sed 替换。

这该怎么做 ？我也不想更换 DB_HOST。

<?php
$GLOBALS['DB_HOST']='localhost';
$GLOBALS['DB_NAME']='database';
$GLOBALS['DB_LOGIN']='login';
$GLOBALS['DB_PASSWORD']='password';
$GLOBALS['PORT_MYSQL']='3306';
$GLOBALS['PORT_MYSQLI']='3306';
$GLOBALS['SERVER_MEMCACHED']='localhost';
$GLOBALS['PORT_MEMCACHED']='11211';
$GLOBALS['CACHE_TIME']=600;
?>

Answer 1

sed -i '/SERVER_MEMCACHED/s/localhost/mydomain.com/' input