Re: invoke shell with `` failed

This is similar to node 684300.
Depending on the version of *NIX you are using, there are limitations on the length or number of command line arguments, set in kernel. Some platforms have a limit of 255 entries, Linux has a size limit instead which defaults to (last time I looked) 32 pages (128kb on 32-bit Intel), but this can be changed by tweeking a kernel parameter.
Check the number, and size, of parameters being sent in the command.

Comment on Re: invoke shell with `` failed

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Re^2: invoke shell with `` failed by jiangliguo (Initiate) on Apr 15, 2009 at 09:09 UTC
It seems my problem is not the same as node 684300. since when i use $begin_load = `cat /proc/loadavg`; [download] I will also encounter the same issue.	[reply] [d/l]
Re^3: invoke shell with `` failed by parv (Parson) on Apr 15, 2009 at 10:07 UTC
What about environment variables mentioned later, which did not occur to me at the time of my reply to perl: Argument list too long?	[reply]
Re^3: invoke shell with `` failed by pat_mc (Pilgrim) on Apr 15, 2009 at 10:01 UTC
Clearly, my $variable = `cat some.file`; [download] works fine for "well-behaved" files. I suspect the problem you are having is due to the contents of the file you are listing. Either it is too large (i.e. larger than your RAM so Perl cannot fit it into the scalar, which is unlikely) or it contains some character sequence that causes problems. Does your shell list the file OK? Cheers - Pat	[reply] [d/l]