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Home: Perl Programming Help: Advanced: calling c programme in perl

madhu_p Novice Nov 29, 2003, 10:44 AM Post #1 of 3 (744 views) calling c programme in perl Can't Post Hi I would like to use a C programme which will do the work. Is there a way to call a c programme inside Perl. Madhu Kaiserslautern,Germany

Recall Novice Nov 29, 2003, 4:47 PM Post #2 of 3 (741 views) Re: [madhu_p] calling c programme in perl [In reply to] Can't Post This perhaps is more of a basic/intermediate question but anyway... If your C program generates output use: my $out = qx/yourprog -any -switches/; If not use.... system("yourprog") and die $!, $?; (This post was edited by Recall on Nov 29, 2003, 4:47 PM)

davorg Thaumaturge / Moderator Dec 1, 2003, 3:40 AM Post #3 of 3 (734 views) Re: [madhu_p] calling c programme in perl [In reply to] Can't Post You would call a C program in exactly the same way as you would call any other external program. There are a number of options depending on exactly what you want to do. * If you want to capture the data that the program writes to STDOUT then you can use backticks (` ... ` or qx( ... )) or open a pipe to read from the program (open PROG, '/path/to/prog |') * If you don't need to capture that data then you probably want "system". * If you want to _replace_ your process with the external program then you can use "exec". * If you want to spawn a separate process that runs at the same time then you can use "fork" and "exec". -- Dave Cross, Perl Hacker, Trainer and Writer http://www.dave.org.uk/ Get more help at Perl Monks

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