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Re^3: Opening URL in instrumented browser

by Arunbear (Parson)
on Sep 18, 2013 at 10:18 UTC ( #1054631=note: print w/replies, xml ) Need Help??

in reply to Re^2: Opening URL in instrumented browser
in thread Opening URL in instrumented browser

Yes, it is a blocking call:
% perl -E 'system(q[opera]); say "hello!" ' + hello!
That only prints "hello!" once Opera exists. Non-blocking alternatives are:
% perl -E 'system(q[opera &]); say "hello!" +' hello!
i.e. launching in the background, or
% perl -E '$r = fork; if($r == 0) { exec(q[opera http://www.perlmonks. +org/]) } elsif(defined $r) { say "hello!" }' hello!
which forks off a child process, and uses exec (so the child process doesn't hang around waiting for the browser process to end).

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