fgrep Linux Commands

What is Linux fgrep Command?

Explanation

fgrep COMMAND:

fgrep command is used to search one or more files for lines that match the given string or word. fgrep is faster than grep search, but less flexible: it can only find fixed text, not regular expressions.

SYNTAX :


fgrep [options] pattern [file]

OPTIONS:


-a Don't suppress output lines with binary data, treat as text.
-b Print the byte offset of input file before each line of output.
-c Print's the count of line matched.
-h Print matched lines but not filenames.
-i Ignore changes in case; consider upper- and lower-case letters equivalent.
-n Print line and line number.
-q Prints in quite mode, prints nothing.
-r Recursively read all files in directories and in subdirectories found.
-v Prints all the lines that do not match.
-V Print Version.
-w Match on whole word only.

EXAMPLE:


Lets assume that we have a file file1.txt and it has the following data.
hscripts is the parent site of www.forums.hscripts.com
ask your technical doubts in our forum
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  1. To search and print the lines containing forum :
    fgrep'forum'file1.txt
    fgrep command prints the output as.
    hscripts is the parent site of www.forums.hscripts.com
    our forums is free


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