bash versus sh test builtin
vogelke+unix at pobox.com
Mon Jan 12 11:34:45 PST 2009
>> On Sun, 11 Jan 2009 20:08:18 -0600,
>> Jeffrey Goldberg <jeffrey at goldmark.org> said:
J> if [ $UID -ne 0 ] ; then ...
J> Does anyone have a recommendation of how to run this simple test in /bin/sh
J> and how to write tests reasonably portably?
I think your best bet for comparisons like this is to use case. I started
doing that back in the days when '[' would start a separate program:
case "$UID" in
0) echo am root ;;
*) echo not root ;;
I use "test" for things relating to file access:
echo "$@" >& 2
test -f /etc/passwd || die "Your system is seriously hosed"
Karl Vogel I don't speak for the USAF or my company
If men ruled the world #12: Instead of wasting money on an expensive
engagement ring, your fiancee would get a giant foam hand that said,
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