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.

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 ...

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 essential command for searching for strings on the Linux command line is 'grep'. However, the weakness of grep is that it cannot search for character strings in video files and PDF files ...