getting a problem when I use which command with system function

greatshots has asked for the wisdom of the Perl Monks concerning the following question:

monks,

#!/usr/bin/perl

system("which ls");
[download]

Output :-

machtype: Command not found.
/usr/bin/ls
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I am unaware of what is machtype in the output. when I did a google I found a linnk which describes about MACHTYPE. But I am getting this error only from the perl script.

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Re: getting a problem when I use which command with system function by sgifford (Prior) on Nov 03, 2006 at 06:07 UTC
Look around in your dotfiles (or the dotfiles of the user running the script), like `.profile`, `.bashrc`, `.cshrc`, etc. I bet one of these is running `machtype`, and it's not in the path or is an undefined shell function. Update: Fixed forrmatting error. -- sgifford's Web page	[reply]
Re^2: getting a problem when I use which command with system function by greatshots (Pilgrim) on Nov 03, 2006 at 07:40 UTC
thanks a lot sgifford. #setenv MACH `machtype` [download] found in $HOME/.cshrc. I commented this line. after that I got the expected behaviour from my perlscript.	[reply] [d/l]
Re^3: getting a problem when I use which command with system function by jhourcle (Prior) on Nov 03, 2006 at 16:23 UTC
I actually ran into a problem with 'which' and a '.cshrc' file a week or two ago when doing some shell scripting on MacOS X In my case, it was much more subtle, as which was written in csh, but that wasn't the shell I was using. So when it called the .cshrc, it overwrote PATH, and would report programs that weren't in my path when I was using bash. (of course, which is a builtin under csh, so the odds of you calling the script under csh in normal use should be non-existant) Oddly enough, there's a note about 'DO NOT USE "csh -f"' immediately after the shebang line, which fixes the problem, but I have no idea what other implications it might have.	[reply]
Re: getting a problem when I use which command with system function by msk_0984 (Friar) on Nov 03, 2006 at 05:17 UTC
Hi Actually i am not getting any error i am able to get the output perfectly. `#!/usr/bin/perl print " HELLO \n"; system( " which ls ");` [download] OUTPUT HELLO /bin/ls Work Hard Party Harderrr!! Sushil Kumar	[reply] [d/l]
Re^2: getting a problem when I use which command with system function by jbrugger (Parson) on Nov 03, 2006 at 05:42 UTC
Tried it as well: `# Debian and CentOS Linux: perl -e 'system("which ls");' /bin/ls` [download] Only on windows it did not work, since i use cygwin to perform most linux like functions... `U:\>perl -e 'system("which ls");' /usr/bin/ls U:\>/bin/ls The system cannot find the path specified. U:\>` [download] What os are you using? "We all agree on the necessity of compromise. We just can't agree on when it's necessary to compromise." - Larry Wall.	[reply] [d/l] [select]