nested loops

[Randal Schwartz]

In article <7318 at helios.TAMU.EDU>, skdutta at cs (Saumen K Dutta) writes:
| this="one two three"
| that="four five six seven"
| them="eight nine ten"
| all="this that them"
| #
| for i in $all
| do
| k='eval echo $`echo $i`'
| for j in `eval $k`
| do
| echo $i $j 
| done
| done

Waaaaayyyy too many eval's and echo's.  Try this:

#!/bin/sh
this="one two three"
that="four five six seven"
them="eight nine ten"
all="this that them"
for i in $all
do
	eval 'for j in $'$i'
	do
		echo $i $j
	done'
done

And look, I didn't mention Perl once (oops!).

(But why is this in wizards?  Sigh.)
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