Re^3: Difference between a perl script & shell script

For some reason, the user shell on the SunOS (not in general, just on that particular machine) was mandated to be tcsh, and on the SGI it was bash. Or maybe it was the other way around.

I don't get this. Just because a users shell is tcsh doesn't mean that every shell program needs to be in tcsh - if the top line says #!/usr/bin/sh, it will be run in sh, regardless of the users shell.

The only exception being shells that need to be "sourced" - but you can't write those in Perl anyway (unless your shell is Perl).

Perl --((8:>*

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Re^4: Difference between a perl script & shell script by tirwhan (Abbot) on Dec 19, 2005 at 14:40 UTC
Unless the admin has done `ln -s /usr/bin/sh /usr/bin/csh` And/or for added entertainment value: `$ stat -c %N /usr/bin/csh ,,/usr/bin/csh" -> ,,/bin/bash"` [download] Yes I've seen this on production systems :-/. I personally find it much easier to test and rely on Perls `$]` than the various wacky shell configurations out there. YMM undoubtedly V. Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. -- Brian W. Kernighan	[reply] [d/l] [select]
Re^5: Difference between a perl script & shell script by swampyankee (Parson) on Dec 19, 2005 at 15:52 UTC
Crap like that is one of the reasons that they kept the sysadmins in a different, secure building in my last Unix-universe (actually, AIX) position. The sysadmins also did such lovable actions as neglecting to renew compiler licenses, which made it a trifle tough to get any work done. They would also change the directory structure without telling anybody. emc Visit Netlib	[reply]
Re^5: Difference between a perl script & shell script by Perl Mouse (Chaplain) on Dec 19, 2005 at 15:18 UTC
Yeah, but that's a severly broken system. You might as well have a system admin that does `ln -s /usr/bin/python /usr/bin/perl` [download] and suddenly your shell scripts are more portable. `Perl --((8:>*`	[reply] [d/l]


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