On Jan 14, 2010, at 12:43 AM, Jim Gibson wrote:
> On 1/13/10 Wed Jan 13, 2010 3:28 PM, "ANJAN PURKAYASTHA"
> <anjan.purkayas...@gmail.com> scribbled:
>
>> Hi,
>> Suppose I run an application from within a perl script, with system (eg
>> system ("myfavprogram input_file out_file")).
>> Is there a way to let the script know that the program has finished running
>> and that I can move on to the next step in the perl script?
>
> The system function will wait for the external process to terminate before
> continuing. See 'perldoc -f system'. So unless your external process does
> something funny, like starting its own processes and returning early to its
> caller before finishing, you shouldn't have to do anything special in your
> Perl program.
The 'system' command is often considered hard to interpret - its output can be
cryptic. There are tools on the CPAN to help with using 'system', things like
IPC::Run and IPC::System::Simple. Perhaps after you looked at the code synopses
there you might find something that does what you want.
Jeremiah
