Re^3: retrieve the value of a system call in a non blocking mode

Hi Chris, the result of

echo test > myfile.txt") or die $!;

is to still display the command output in the console as usual, i cannot input anything exept SIGINT or SIGTERM, the screen display is dynamic but it doesn't create lines in the console except spaces and then freeze on the last screen when I kill the program. Maybe this precisions will be helpful.

The .txt is created but it only contains two lines of spaces.

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Re^4: retrieve the value of a system call in a non blocking mode by taint (Chaplain) on Dec 06, 2013 at 00:56 UTC
D'OH! Had a bit of a HOMER moment there. :P What I should have put above was `system("echo test > myfile.txt" or die $!); system("cat myfile.txt" or die $!);` [download] NOTE: the misplaced `paren` in my earlier post. sorry 'bout that. --Chris UPDATE: I should probably mention, that it might be more elegant to test the existence of the file `myfile.txt` before cattting it, rather than dieing. If interested. I'd post an example. Hey. I'm not completely useless. I can be used as a bad example.	[reply] [d/l]
Re^5: retrieve the value of a system call in a non blocking mode by young_monk_love_perl (Novice) on Dec 06, 2013 at 09:21 UTC
Sure, thank you taint I'm very interested by an example. Also are there some books you could recommend me about Perl ?	[reply]


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