Common shell tools

Awk

Awk is a programming language used to process text and data in Linux/Unix.

Sed
Sed is a stream editor that is a very useful tool in text processing.

Grep
Grep is a powerful text search tool, which is often used in combination with pipelines.

WC

The WC command is used to collect text information. The WC command can be used to calculate the number of bytes, words, or columns of a file.

WC Parameters
-C: calculate the number of bytes.
-L number of calculated rows
-W words

Common shell tools