[Sunrier@lcoalhost Sed]$ ls
[Sunrier@lcoalhost Sed]$
[Sunrier@lcoalhost Sed]$ echo -e "Sunrier\nJack\nTom" > test.txt
[Sunrier@lcoalhost Sed]$ cat test.txt
Sunrier
Jack
Tom
[Sunrier@lcoalhost Sed]$ ls
test.txt
[Sunrier@lcoalhost Sed]$ cat test.txt
Sunrier
Jack
Tom
[Sunrier@lcoalhost Sed]$
1.删除test.txt文件所有包含"Sunrier"的行(注:test.txt文件本身内容并没有删除, 只是针对命令执行显示终端)
[Sunrier@lcoalhost Sed]$ sed "/Sunrier/d" test.txt
Jack
Tom
[Sunrier@lcoalhost Sed]$
或者
[Sunrier@lcoalhost Sed]$ sed '/Sunrier/d' test.txt
Jack
Tom
[Sunrier@lcoalhost Sed]$