csh if..then delhema.

Garrett Cooper youshi10 at u.washington.edu
Sun Sep 9 09:35:25 PDT 2007


Giorgos Keramidas wrote:
> On 2007-09-09 08:57, Grant Peel <gpeel at thenetnow.com> wrote:
>   
>> Thanks for the input gentlemen,
>> Interesting to that the question was posted by G(rant) and then
>> answered by G(ary), G(arrett) and G(iorgos)! (what are the odds!).
>>     
>
> Haha :)
>
>   
>> Anywho, I am busily converting the script to perl as per the
>> suggestions. I use tcsh rarely, had I of known the quirks I woul shave
>> done it in perl from the beguining.
>>
>> As for Garrett's case method, it didnt work. Created a "case: Too many
>> arguments." error. Perhaps because it itself is nested in a 'foreach'
>> statement.
>>     
>
> `foreach' is a csh construct.  If you copied the case/esac code posted
> by Garrett, then it wouldn't work.  The syntax used by Garrett was for
> the Bourne shell (hence the /bin/sh reference above case).
>
> If you are going to convert everything to /bin/sh, you may as well
> convert it to Perl unless there is some very good reason to use only
> the pretty minimal data-structures supported by the Bourne shell
> (i.e. because you want to run the script in environments where Perl
> may be too much to require).
>
> - Giorgos
>
>   

    'for {variable_name}' can replace foreach in Bourne Shell.

    If you can provide more information, like what you're doing with the 
shell script, please let us know.

    I'm a big fan of Perl, in particular in cases where text parsing 
doesn't cut it in Bourne shell / with the simple utilities (i.e. cut(1), 
sed(1), etc), but in an effort to try and avoid having Perl installed on 
every single machine, I provided the previous Bourne shell example.

Cheers,
-Garrett


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