[Tfug] Re: csh/tcsh users

[t takahashi]

try using (...) or {...} to force it.

long term solution: switch to bash or zsh.  they suck in different ways,
but both suck less than csh.  imho.

to get you started, i recommend this syntax:

if [ ... ]
then
        if [ ... ]
        then
                ...
        fi
        ...
fi

to look up how to use [] look up test in the man pages or do help test in bash.


On 11/2/05, Jim Secan <jim at nwra.com> wrote:
> If there are any csh/tcsh gurus out there I'm having an ongoing battle with
> nested if-then-else constructs.  These things have worked for years on
> Solaris, and I'm getting tired of hacking work-arounds on Linux (FC3).
>
> An example:
>
> if($BUILD_G == NO)then
>    echo 'STATUS:  G matrix already built'
>    if(!(-e $gelFile))then
>       rm $gelFile
>       ln -s $GMdir/$gelFile $gelFile
>    endif
>    if(!(-e $refFile))then
>       rm $refFile
>       ln -s $GMdir/$refFile $refFile
>    endif
>    echo Linked to gel and ref files in $GMdir
> endif
>
> If BUILD_G is NO, it works fine.  Otherwise, rather than not executing
> everything between the initial "if" and the final "endif" the shell jumps
> to the first "endif" it encounters and starts from there.  In this case, it
> starts in at the
> "if(!(-e $refFile))then" line and keeps going.  Sorry, but this is just
> wrong.
>
> So, has the shell got a bug (which it's had for several years now) or
> what's going on?
>
> Jim
>
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