if you whant to send an input to an external program and trap the output the you need IPC::Open2 (perldoc IPC::Open2)
the error message you posted suggest your program interpretes command line arguments as names of file to open
however a vast majority of programs also works with input from STDIN so IPC::Open2 should work...

In reply to Re: sending arguements to external program by roberto
in thread sending arguements to external program by Anonymous Monk

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