Grep is fast, powerful, and the workhouse of the command line. We’ll show you how to become a command-line wizard by using grep to quickly find text hidden in your files.

' Ripgrep-all (rga) ' is a command that overcomes such weaknesses of grep and can search metadata of video files, database records, and even character strings in image files.

These are called "wildcards," and they can make your life in the Linux terminal much easier. Wildcard characters, also known ...

The grep command, short for "global regular expression print," is one of the most powerful and frequently used tools in Unix and Linux environments. From sifting through log files to finding patterns ...

The setup: I have a directory. In this directory is a series of subdirectories. In each subdirectory are four or five text files. The files are all named identically from directory to directory; i ...

Concatenating strings In general, the only time that you’d want to concatenate strings on Linux is when one string is already defined and you want to add more to it.