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# force single-byte versions of these functions
export LANG=C
# remove shortest trailing match
x=file.c
recho ${x%.c}.o
# remove longest trailing match
x=posix/src/std
recho ${x%%/*}
# remove shortest leading pattern
x=$HOME/src/cmd
recho ${x#$HOME}
# remove longest leading pattern
x=/one/two/three
recho ${x##*/}
# and no match thrown in for good measure
recho ${x#nomatch}
foo=abcdefg
# fail
echo ${foo%ab}
echo ${foo%def}
echo ${foo#fg}
echo ${foo#def}
# succeed
echo ${foo#ab}
echo ${foo#def}
echo ${foo%fg}
echo ${foo%def}
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