NAME

tac - concatenate and print files in reverse

SYNOPSIS

tac [-br] [-s separator] [-B] [-S bytes] [file...]

DESCRIPTION

tac copies files or standard input to standard output with the order of records reversed.

OPTIONS

-b

Attach separator to the beginning of the record that it precedes in the file.

-B

Read files in binary mode.

-r

The separator is a regular expression.

-s STRING

Use STRING as record separator. Set to '' for paragraph mode. Defaults to newline.

size
-S BYTES

Number of bytes to read at a time. Defaults to 8192.

NOTES

  1. -B and -S are peculiar to this implementation of tac.

  2. Regular expressions reek of camel. Here are a few constructs to watch out for:

    \A, \Z, \z      anchors are not useful...
    ^ $             ...maybe with /m
    ()              capturing parenthesis are not useful
    |               alternation may match out of sequence

AUTHOR

Fuzzy | tgy@chocobo.org | Will hack Perl for a moogle stuffy! =^.^=

COPYRIGHT

Copyright (c) 1999 Moogle Stuffy, Inc. All rights reserved.

This program is cookie-ware. Cookie contributions in denominations of three are accepted. Chocolate chip is preferred. E-mail for more info.

You may otherwise play with this software in accordance with Perl's Artistic License.