echo 'niuniu niumei' | grep -oE "niuniu|niumei" | awk '{ print "Start" print $0 next print "End" }'
StartniuniuStartniumei
StartniuniuEndStartniumeiEnd
Startniuniu niumeiEnd
Startniuniu niumei
这道题你会答吗?花几分钟告诉大家答案吧!
扫描二维码,关注牛客网
下载牛客APP,随时随地刷题