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|
# $FreeBSD$
IFS=,
SPECIAL="break,\
:,\
continue,\
. /dev/null,\
eval,\
exec,\
export -p,\
readonly -p,\
set,\
shift 0,\
times,\
trap,\
unset foo"
UTILS="alias,\
bg,\
bind,\
cd,\
command echo,\
echo,\
false,\
fc -l,\
fg,\
getopts a var,\
hash,\
jobs,\
printf a,\
pwd,\
read var < /dev/null,\
test,\
true,\
type ls,\
ulimit,\
umask,\
unalias -a,\
wait"
set -e
# With 'command', variable assignments do not affect the shell environment.
set -- ${SPECIAL}
for cmd in "$@"
do
${SH} -c "VAR=0; VAR=1 command ${cmd}; exit \${VAR}" >/dev/null 2>&1
done
set -- ${UTILS}
for cmd in "$@"
do
${SH} -c "VAR=0; VAR=1 command ${cmd}; exit \${VAR}" >/dev/null 2>&1
done
|
