sed行对象【列表】和单个字符对象【替换】

Bash sed【行列表】和【字符替换】

一、List

List the specific item lines.

-n forbids default print.

[braveyly@m-net ~]$ cat sedly.txt word abc aTC [braveyly@m-net ~]$sed -n l ./sedly.txt word$ abc$ aTC$ [braveyly@m-net ~]$sed -n '/abc/l' ./sedly.txt abc$ [braveyly@m-net ~]$ sed l ./sedly.txt word$ word abc$ abc aTC$ aTC

二、Transfer

For example, transfter lower case letters to capital letters.

linenumy/abc/ABC/

In the linenum line, replace abc with ABC.

/keyword/y/abc/ABC/

In the lines positioned by keyword, replace abc with ABC.

[braveyly@m-net ~]$ cat sedly.txt word abc aTC [braveyly@m-net ~]$ sed -e 'y/abc/ABC/' ./sedly.txt word ABC ATC [braveyly@m-net ~]$sed -e '2y/abc/ABC/' ./sedly.txt word ABC aTC [braveyly@m-net ~]$sed -e '/T/y/abc/ABC/' ./sedly.txt word abc ATC