======grep筛选内容如何换行呢？======

ll104567

最简单的办法- -
在脚本里直接写这个

grep 'export' /etc/profile | grep -v USER | grep HISTCONTROL

OS_unix

echo "$aa"  变量加上双引号！

RE_HASH

$>  echo export HISTCONTROL=ignoreboth export HISTCONTROL=ignoredups|grep -Po 'export HISTCONTROL=\w+'
export HISTCONTROL=ignoreboth
export HISTCONTROL=ignoredups

jcdiy0601

三楼正解！

sunzhiguolu

1. perl -nle 'BEGIN{$,="\n"}print @a if(@a=split(/\h(?=export)/))' f
   

复制代码

export HISTCONTROL=ignoreboth
export HISTCONTROL=ignoredups

云遮雨

grep 'export' /etc/profile | grep -v USER | grep HISTCONTROL

aa=`grep 'export' /etc/profile | grep -v USER | grep HISTCONTROL`
echo "$aa"