No Subject
Sun Feb 28 23:02:00 GMT 1999
~: sh try_ash yyy
Test 1 yyy
is not a switch
Test 2 yyy
is not a switch
~: sh try_ash -yyy
Test 1 -yyy
is a switch
Test 2 -yyy
is not a switch
Using sh on a SUN yields:
1-chablis$ sh try_ash yyy
try_ash: bad substitution
Pierre
********************
#This file checks if arg1 is a switch
b=${1%%-*}
echo Test 1 "$1"
if test -z "$b"
then
echo is a switch
else
echo is not a switch
fi
#Now it tries a direct test
echo Test 2 "$1"
if test -z "${1%%-*}"
then
echo is a switch
else
echo is not a switch
fi
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