Category: Linux Text Processing

Vim delete lines, as the basic knowledge of vim is one of the functions we must master. Mastering the skills of deleting lines can improve...

Awk replace statement can help us format the input data conveniently. Use of awk string manipulation functions: gsub() ...

This article will show you how to use vim to copy-paste and cut-paste in normal mode. ①y stands for copy ②p stands for paste ③d...

Awk supports if else conditions judgment, and multiple conditions operations with && (and) or || (or) can be used....

Sed replace, you can use the sed function: s, replace the text in the file. syntax: ➜ ~ sed 's/regexp/replacement/' file...

Sed insert a line before match, you can use the sed function: i, add a new line before the matched string. syntax: sed '/option/i...

sed add line after match, you use sed function: a , to add a new line after the matched string. syntax: sed '/option/a newLine'...

Awk concatenated strings, you can use awk OFS variables, or you can use strings directly. syntax: awk'BEING {s1="string1";s2="string2";OFS="delimiter";print s1,s2;}'...

Awk substr has built-in functions that can help us select substrings anywhere in the input string. awk substr syntax: substr(string, start, lenght)...

linux tr command common examples: replacing specific characters, removing specific characters, deleting duplicate characters, etc....

Awk ternary condition judgment is similar to the awk if else statement, providing branch control capability. Ternary syntax: ( Statement ) ? True :...

Awk OFS field separator variable, output field separator. It is a pair with the Awk FS variable; awk FS separates strings as fields, and awk...

awk separate string, you can use awk FS variable or awk -F option to support single delimiter and multiple delimiter regular matching....