fgrep(1)                       DG/UX R4.11MU05                      fgrep(1)


NAME
       fgrep - search a file for a character string

SYNOPSIS
       fgrep [options] string [file ...]

DESCRIPTION
       fgrep (fast grep) searches files for a character string and prints
       all lines that contain that string.  fgrep is different from grep(1)
       and egrep(1) because it searches for a string, instead of searching
       for a pattern that matches an expression.  It uses a fast and compact
       algorithm.

       The characters $, *, [, ^, |, (, ), and \ are interpreted literally
       by fgrep, that is, fgrep does not recognize full regular expressions
       as does egrep.  Since these characters have special meaning to the
       shell, it is safest to enclose the entire string in single quotes
       '...'.

       If no files are specified, fgrep assumes standard input.  Normally,
       each line found is copied to the standard output.  The file name is
       printed before each line found if there is more than one input file.

       Command line options are:

       -b    Precede each line by the block number on which it was found.
             This can be useful in locating block numbers by context (first
             block is 0).
       -c    Print only a count of the lines that contain the pattern.
       -h    Suppress printing of filenames when searching multiple files.
       -i    Ignore upper/lower case distinction during comparisons. This is
             valid for single byte characters only.
       -l    Print the names of files with matching lines once, separated by
             new-lines.  Does not repeat the names of files when the pattern
             is found more than once.
       -n    Precede each line by its line number in the file (first line is
             1).
       -v    Print all lines except those that contain the pattern.
       -x    Print only lines matched entirely.
       -e specialstring
             Search for a special string (string begins with a -).
       -f file
             Take the list of strings from file.


   International Features
       fgrep can process characters from supplementary code sets.

       Searches are performed on characters, not on individual bytes.

EXAMPLES
       $ ps -af | fgrep -x -f expfile
       Searches through the list of active processes for lines that entirely
       match the lines in "expfile".

       $ find . -exec fgrep -l attachment {} \;
       Prints the names of all files under the current working directory
       that contain the string "attachment".

SEE ALSO
       ed(1), egrep(1), grep(1), sed(1), sh(1).

DIAGNOSTICS
       Exit status is 0 if any matches are found, 1 if none, 2 for syntax
       errors or inaccessible files (even if matches were found).

NOTES
       Ideally there should be only one grep command, but there is not a
       single algorithm that spans a wide enough range of space-time
       tradeoffs.  Lines are limited to BUFSIZ characters; longer lines are
       truncated.  BUFSIZ is defined in /usr/include/stdio.h.


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