Regular expressions — the things you feed to programs like grep — are a bit like riding a bike. It seems impossible until you learn to do it, and then it’s easy. Part of their bad reputation is ...

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 ...

In the example below, we can see how grep selects from a list of bugs all those that start with “bee” and then all those for which the third letter is an “a”. This is pretty basic when it comes to ...

The everlastingly useful grep command can change its character with the flip of a switch to help you find things. The grep command – likely one of the first ten commands that every Unix user comes to ...

When working with regular expressions in a shell script the norm is to use grep or sed or some other external command/program. Since version 3 of bash (released in 2004) there is another option: ...

10 ways to use grep to search files in Linux Your email has been sent The grep command is a powerful tool for searching for files or information. Learn some strategies for using it effectively.

If you consider yourself a good cook, you may or may not know how to make a souffle or baklava. But there are certain things you probably do know how to do that form the basis of many recipes. For ...