UNIX Shells by Example (4th Edition)

4.6. fgrep (Fixed grep or Fast grep )

The fgrep command behaves like grep , but does not recognize any regular expression metacharacters as being special. All characters represent only themselves . A caret is simply a caret, a dollar sign is a dollar sign, and so forth. (See GNU grep “F if using Linux.)

Example 4.36.

fgrep '[A-Z]****[0-9]...00' file

EXPLANATION

Finds all lines in the file containing the literal string [A “Z]****[0 “9]..$5.00. All characters are treated as themselves. There are no special characters.