The awk command or GNU awk in specific provides a scripting language for text processing. With awk scripting language, you can make the following:
Define variables.
Use string and arithmetic operators.
Use control flow and loops.
Generate formatted reports.
Actually, you can process log files that contain maybe millions of lines to output a readable report that you can benefit from.
1 Awk Options
2 Read AWK Scripts
3 Using Variables
4 Using Multiple Commands
5 Reading The Script From a File
6 Awk Preprocessing
7 Awk Postprocessing
8 Built-in Variables
9 More Variables
10 User Defined Variables
11 Structured Commands
11.1 While Loop
11.2 The for Loop
12 Formatted Printing
13 Built-In Functions
13.1 Mathematical Functions
14 String Functions
15 User Defined Functions
https://likegeeks.com/awk-command/
Hope you like it.
Regards,
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