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MAN page from RedHat EL 5 perl-Filter-1.34-1.el5.rf.i386.rpm

Filter::exec

Section: User Contributed Perl Documentation (3)
Updated: 2001-02-18
Index 

NAME

Filter::exec - exec source filter 

SYNOPSIS

    use Filter::exec qw(command parameters) ;
 

DESCRIPTION

This filter pipes the current source file through the program whichcorresponds to the "command" parameter.

As with all source filters its scope is limited to the current sourcefile only. Every file you want to be processed by the filter must have a

    use Filter::exec qw(command ) ;

near the top.

Here is an example script which uses the filter:

    use Filter::exec qw(tr XYZ PQR) ;    $a = 1 ;    print "XYZ a = $a\n" ;

And here is what it will output:

    PQR = 1
 

WARNING

You should be very careful when using this filter. Because of theway the filter is implemented it is possible to end up with deadlock.

Be especially careful when stacking multiple instances of the filter ina single source file. 

AUTHOR

Paul Marquess  

DATE

11th December 1995.


 

Index

NAME
SYNOPSIS
DESCRIPTION
WARNING
AUTHOR
DATE

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