Shell programming style -- a plea for better shell scripts
Henry Spencer
henry at utzoo.UUCP
Tue Mar 6 11:57:07 AEST 1984
Doug Gwyn observes, in part:
Before invoking ANY system commands, set the expected command
search path. This is usually:
PATH=/bin:/usr/bin
Not quite right. The proper incantation, one which we take some pains
to always use hereabouts, is:
PATH=/bin:/usr/bin ; export PATH
Without that magic "export", the user's original PATH is what gets
exported to commands executed from the shell file, which means that
it can reappear without warning.
--
Henry Spencer @ U of Toronto Zoology
{allegra,ihnp4,linus,decvax}!utzoo!henry
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