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

6       Filter::exec - exec source filter
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SYNOPSIS

9           use Filter::exec qw(command parameters) ;
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DESCRIPTION

12       This filter pipes the current source file through the program which
13       corresponds to the "command" parameter.
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15       As with all source filters its scope is limited to the current source
16       file only. Every file you want to be processed by the filter must have
17       a
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19           use Filter::exec qw(command ) ;
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21       near the top.
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23       Here is an example script which uses the filter:
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25           use Filter::exec qw(tr XYZ PQR) ;
26           $a = 1 ;
27           print "XYZ a = $a\n" ;
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29       And here is what it will output:
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31           PQR = 1
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WARNING

34       You should be very careful when using this filter. Because of the way
35       the filter is implemented it is possible to end up with deadlock.
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37       Be especially careful when stacking multiple instances of the filter in
38       a single source file.
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AUTHOR

41       Paul Marquess
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DATE

44       11th December 1995.
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48perl v5.30.0                      2019-07-26                   Filter::exec(3)