It’s fast, it’s powerful, and its very name suggests that it does something technical: grep. With this workhorse of the command line, you can quickly find text hidden in your files. Understanding grep ...

grep is a command-line utility for searching plain-text data sets for lines that match a regular expression. Created in the early days of Unix, it has become a cornerstone of text processing in Linux ...

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

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. ' ...

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.e.