I often profess that Linux can be used without the command line, but at some point, you might want to learn it anyway. When you do, consider these commands.

With regex and grep, you can search for patterns in text files with either simple or very complex patterns. Also: The first 5 Linux commands every new user should learn ...

The everlastingly useful grep command can change its character with the flip of a switch to help you find things.

I should hope not. "Unix experience" implies you know how to get stuff done using tools common to most Unix-likes, like sed, grep and awk covered in this article.

After jumping into the Ubuntu command line yesterday, today I decided to dive a little deeper and explore the 'man' and 'grep' commands more closely.

The grep command is a handy, reliable tool for searching for files or information. This tutorial illustrates 10 ways to take advantage of its power and flexibility.

Taking grep to the next level with regular expressions The real power of the grep command can be unlocked by using regular expression (regex) syntax, a simple language for describing the ...

Specifically, the new grep options that I've found to be quite useful are: -P or --perl-regexp makes grep interpret the pattern you pass as a perl compatible regular expression (PCRE). PCREs are often ...