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grep

summary

    This subchapter looks at grep, a UNIX (and Linux) command.

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grep

    This subchapter looks at grep, a UNIX (and Linux) command.

    grep is used to find a regular expression in a file.

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    On November 8, 2010, Ramesh Natarajan named this the number two (2) most frequently used UNIX/Linux command at this web page 50 Most Frequently Used UNIX / Linux Commands (With Examples).

    In June 2009, Ken Milberg named this command as one of the Top 50 universal UNIX commands at this web page Top 50 Universal INIX commands. Note that this web page requires agreeing to be spammed before you can read it.

    “grep is for locating content within files using regular expressions to control what is selected. GNU Grep has many more capabilities than the traditional or POSIX versions of Grep.” —Jonathan Leffler

    “grep finds text. Basic grep functionality can easily be imitated in sed and awk.” —ephemient

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