One possibility would be to use the full path for the commands, e.g., /usr/bin/ls.

There is a Perl module which will, "Compute `intelligent' differences between two files / lists" (Algorithm::Diff). This may be a superior solution.

emc

At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation.

—Igor Sikorsky, reported in AOPA Pilot magazine February 2003.

In reply to Re: spawning shell commands with aliases by swampyankee
in thread spawning shell commands with aliases by xafwodahs

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