This filter pipes the current source file through the program which
corresponds to the command parameter using the Bourne shell.
As with all source filters its scope is limited to the current source
file only. Every file you want to be processed by the filter must have a
use Filter::sh command ;
near the top.
Here is an example script which uses the filter:
use Filter::sh tr XYZ PQR ;
$a = 1 ;
print "XYZ a = $a\n" ;
And here is what it will output:
PQR = 1