Hello all, Have a quick question that I think the powers of Ars can solve. I have an existing linux log parsing script that is working fine but I want to add new functionality to it. Given the ...

Posted in News, Software Development Tagged grep, linux, regex, regular expression, tutorial, unix ← Trick Your (1970) Pickup Truck Cosmic Ray Detection At Starbucks? → ...

The problem was the developer wasn’t clear on the difference between a regular expression and a glob. Tools like grep use regular expressions to create search patterns.

You could try to construct a more complicated regex, but this starts to get beyond grep's capabilities. What you need is a more powerful tool, like awk: awk -F ':' ...

$ grep -rl "meeting minutes" * ARK2010/02-02-notes ARK2010/TBD Jan2010/TASkForce2 Mar2010/TaskForce2 Another useful trick with grep on Linux allows you to specify a Perl regular expression in your ...

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 ...

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

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.

Grep offers the ability to search through multiple text files and folders for a specific chunk of text or regular expression. Diff compares two documents and highlights the differences between them.