in reply to double quotes and single qoutes

Although the others already pointed you to the right direction, here a tip:

You could prepend echo to your command, thus: 
echo perl -e "($hi)=glob(\"nosum*\"); print \"$hi\"";

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to see what's going on before perl even get a chance to do anything. Most probably perl will see something like 
perl -e ()=glob("nosum*"); print "";

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Re^2: double quotes and single qoutes
by McA (Priest) on Mar 14, 2013 at 09:42 UTC

    My tip in this tips section: As soon as you have to fiddle with quotes more than 30 seconds, it's better to write a little perl script into a file even when this is not so qwel like a perl one liner. ;-)

    McA

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