Re: Backticks and SIGALRM

You might try qx instead of backticks.

#!/usr/bin/perl

# qx does interpolation too
# generalized form for using backticks
$output=qx(ls -la);
print "$output\n";

$output = `ls`;
print "$output\n";

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Comment on Re: Backticks and SIGALRM Download Code
Re^2: Backticks and SIGALRM by nemo (Sexton) on Aug 20, 2007 at 12:53 UTC
Thank you for your replies. I attempted the solution using qx but I had the same result. Executing the command using the shell seems to be the problem, the sigalrm is not delivered. It's an interesting problem I haven't come across before. I was considering using system to redirect the output of the command to a temporary text file and then reading the tmp file to parse output one line at a time. I should also mention I am working on Win32 Boo! ;) Nemo	[reply]
Re^2: Backticks and SIGALRM by halley (Prior) on Aug 20, 2007 at 16:12 UTC
It is useful to remember that `qx//` is backticks. It's just another syntax to get there. It doesn't exercise any different code path, it won't behave any different, except how the parser finds the end of the string (you could type qx/foo `blah`/ without needing special escape characters to get the backquotes into the shell). Also, `q//` is single-quoted, and `qq//` is double-quoted. Same thing. -- `[ e d @ h a l l e y . c c ]`	[reply] [d/l] [select]
Re^2: Backticks and SIGALRM by ikegami (Pope) on Aug 21, 2007 at 14:53 UTC
`qx` and `` produce the same code.	[reply] [d/l] [select]


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Re: Backticks and SIGALRM

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