Common text Editing commands

1.diff Comparison of two different files

Diff-u file file.new >file.path## generating patch files

Yum Install patch-y## installation Patching tool

Patch-b file file.path## to old software patching, clear and backup of old software

2.grep## Filter Characters

-i## or slightly case

-n## The line number of the row where the result is displayed

-c## Number of results

-v## Reverse Filter

-r Keyword Directory # # filter files in the directory with keywords

-E " keyword 1| keyword 2| ... "# # filter Multiple keywords

3.sort## Sort

-n## Pure Digital

-r## Reverse

-u## Remove Duplicate rows

-t## specifying delimiters

-k## To specify a sorted column

4.uniq## processing Duplicate rows

-c## count the number of repeating rows

-u## display Unique rows

-d## Show Duplicate rows

5.tr## convert character case

Tr ' A-Z ' A-Z ' <file## converts all lowercase characters in file to uppercase

6.sed (-I for synchronizing changes to the original file ) # # Control Flow output

Sed ' s/nologin/westos/g ' passwd # # Replace the Nologin in the output as Westos

Sed ' 1,5s/nologin/westos/g ' passwd # # Replace the nologin of 1-5 lines in the output as wesots

Sed '/games/,/nobody/s/nologin/westos/g ' passwd## replaces the nologin of the Games characters in the output to nobody characters To Westos

Sed-e ' s/nologin/westos/g '-e ' s/sbin/lee/g ' passwd## multiple substitution policies with- e connection

Sed 3d passwd## does not display the third row in the file

Sed 3,7d file## does not display 3-7 lines in a file

sed 3,7p File # # repeats 3-7 lines in Files

Sed-n 3,7p File # # displays only 3-7 lines in the files

[[email protected] mnt]# Cat rule # # rule File Contents

S/nologin/westos/g

S/sbin/lee/g

[[email protected] mnt]# sed-f rule File # # change output using rule files

1root:x:0:0:root:/root:/bin/bash

2bin:x:1:1:bin:/bin:/lee/westos

3daemon:x:2:2:daemon:/lee:/lee/westos

4adm:x:3:4:adm:/var/adm:/lee/westos

Common text Editing commands