How to Grep Multiples Lines and using Specific Keyword on Linux

grep is a command line text search utility originally written for Unix or linux. In linux you can grep multiple lines before or after matching the keywords. This examples has been tested on linux CentOS 6.2, but it may workings on other linux version such as Redhat Enterprise Linux 5 (RHEL5) or (RHEL6). Get grep […]

How to use Basic Regular Expression with grep command on Linux

Regular expressions are special text strings that used to search for and match patterns in text. To make the search expression more specific, it can work together with the grep command. The grep command is the General Regular Expression Parser; it searches a file for strings matching a given regular expression, and by default it […]

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