1IPC::Filter(3)        User Contributed Perl Documentation       IPC::Filter(3)
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NAME

6       IPC::Filter - filter data through an external process
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SYNOPSIS

9           use IPC::Filter qw(filter);
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11           $compressed_data = filter($data, "bzip2");
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DESCRIPTION

14       The "filter" function provided by this module passes data through an
15       external command, thus providing filtering in non-pipeline situations.
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FUNCTIONS

18       filter(DATA, SHELL_COMMAND)
19       filter(DATA, PROGRAM, ARGS ...)
20           The SHELL_COMMAND, or the PROGRAM with ARGS if more arguments are
21           supplied, is executed as a separate process.  (The arguments other
22           than DATA are ultimately passed to "exec"; see "exec" in
23           perlfunc(1) for explanation of the choice between the two forms.)
24           The DATA (which must be either a simple string or a reference to a
25           string) is supplied to the process on its standard input, and the
26           process's standard output is captured and returned (as a simple
27           string).
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29           If the process exits with a non-zero exit code or on a signal, the
30           function will "die".  In the case of a non-zero exit code, the
31           "die" message will duplicate the process's standard error output;
32           in any other case, the error output is discarded.
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SEE ALSO

35       IPC::Open2
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AUTHOR

38       Andrew Main (Zefram) <zefram@fysh.org>
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41       Copyright (C) 2004, 2007, 2010, 2011, 2017 Andrew Main (Zefram)
42       <zefram@fysh.org>
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LICENSE

45       This module is free software; you can redistribute it and/or modify it
46       under the same terms as Perl itself.
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50perl v5.36.0                      2023-01-20                    IPC::Filter(3)
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