SED deletes script code for one line of content in a file _linux shell

Take a look at the contents of the original file:

Copy Code code as follows:

Root@localhost ~]# Cat File.txt
Hello World
A:b:c-h-N
A:b:c-h-N

SED deletes related rows based on conditions:

Copy Code code as follows:

[Root@localhost ~]# sed-i '/a:b:c-h-n/d ' file.txt
[Root@localhost ~]# cat File.txt
Hello World

Sed to replace the relevant content according to the conditions:

Copy Code code as follows:

[Root@localhost ~]# sed-i ' s/hello/baidu/' file.sh
[Root@localhost ~]# Cat file.sh
Baidu World