Linux Regular Expressions Fundamentals

By | 2017-01-05T16:27:26+00:00 January 5th, 2017|

Regular expressions is a pattern-matching language used for enabling applications to sift through data looking for specific content. In addition to vim, grep, and less using regular expressions, programming languages such as Perl, Python, and C all use regular expressions when using pattern-matching criteria. Regular expressions are a language of their own, which means they [...]

Linux grep command usage with examples

By | 2016-12-23T12:17:44+00:00 December 23rd, 2016|

The grep command which stands for "global regular expression print," processes text line by line and prints any lines which match a specified pattern. The grep command is used to search text or searches the given file for lines containing a match to the given strings or words. By default, grep displays the matching lines. [...]

Unix Z Commands

By | 2016-10-28T16:23:10+00:00 October 28th, 2016|

In this tutorial we can discuss about some of the powerful Z commands in Linux to perform normal operations on a compressed file. Some Z commands uncompress the file temporarily in /tmp directory to perform the operation defined. An advantage of using Z commands to uncompress a file is that it does not really uncompress [...]