Re: unshift

[Ray Andrews <rayandrews@eastlink.ca>]

On 2024-04-02 05:41, Dennis Eriksen wrote:
>
>
> Why not just use 'elif'? :)
>
> shift
> while [ "$1" ]; do
>     if   [ a ]; then b; c;
>     elif [ d ]; then e; f;
>     elif [ g ]; then h; i;
>     fi
>     shift
> done
>
> If 'a' matches, the rest of the conditional won't run.
>
Good idea but in my particular case there's a block of code half way 
down the loop that applies to everything below it.  I should have shown 
that in my original.  Or as I have it now:

while [ "$2" ]; do
     shift
     if [ a ]; then b; c; continue fi
     if [ d ]; then e; f; continue fi
     code-applies-to-all-below; more(of-the-same)
     if [ g ]; then h; i; continue fi
     if [ j ]; then k; l; continue fi
done

... so elif won't work.  Yeah,  I should have made that clear from the 
start, it's what narrows the field of possible solutions.




> You could even use 'case'
>
> shift
> while [ "$1" ]; do
>     case $1 in
>         a) b; c;;
>         d) e; f;;
>         g) h; i;;
>     esac
>     shift
> done
>
> The execution terminates on ';;'.
>