Hello Perl_Sheep, and welcome to the Monastery!

Backticks interpolate, so Perl substitutes the value of $SERVICEBIN for the name, and this happens before the command is passed to the shell. You can suppress interpolation in two ways (see perlop):

$COREBT = `dbx -c "where;quit" \${SERVICEBIN} /tmp/core.core01.1377820
+552 2>&1`;
#                    Add this: ^

# OR

$COREBT = qx'dbx -c "where;quit" ${SERVICEBIN} /tmp/core.core01.137782
+0552 2>&1';
[download]

Did you have use strict; at the head of your script? It would alert you to the fact that $SERVICEBIN is being used without first being declared.

Also, please display your code within <code>...</code> tags as this makes it easier for the monks to read. And please be more specific about the problem you are facing: just saying “this Perl script doesn’t work“ isn’t much for us to go on!

Hope that helps,

Update: Removed unneeded backslash from the single-quoted version. Thanks to AnomalousMonk for the heads-up.