I don't know how many other things that your executable asks for on standard input, but if it's only this one file name, the following command will do what you need.

`echo "$file" | $prog`;

You can get rid of that fork, pipe, and pid stuff.


Update: Since I got downvoted, maybe I wasn't being clear enough here? I still think this is a valid answer to the OP's original question.

If a script expects input (in this case, a file name), you can pipe the input into the script. Take the following script as an example: 

#!/usr/bin/perl -w
use strict;

my $in = <STDIN>;
print $in;

# END #

Now test it
> echo "Hello, world!" | ./test.pl
Hello, world!
>

[download]


I think this is what the OP is looking for instead of his opening on pipes, etc.

In reply to Re: running an executable from a cgi script by swkronenfeld
in thread running an executable from a cgi script by Angharad

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