It's not clear which of two things you are asking
- How to run an arbitrary external command line, which may or may not be the binary executable produced by compiling a C program.
- How to call C code (say, as a subroutine call) directly from perl.
The answer to the first question is simple and threefold:
- Run the command with back-ticks, assigning its STDOUT to a variable: as in, my $result = `commandline`;
- Use the system() function: as in, my $rc = system("commandline > result.log");
- Open the command as a pipe (if, say, you expect lots of output):
# note vertical bar (pipe) at end of command
open PH, "commandline|" or die "commandline: $!";
while (<PH>) {
# ... do something with each line of output
}
close PH or die "commandline: $!";
The answer to the second question is too involved to cover adequately here, but has been covered in depth elsewhere, among which are this and this.
Update: Another option, as posited by Sniper, is of course to use Inline.pm, but once again, that's a whole 'nother ball of wax.
dmm
You can give a man a fish and feed him for a day ...
Or, you can teach him to fish and feed him for a lifetime
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