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#!/usr/bin/bash
process_u() {
if [ ! -z "${2##*[!0-9]*}" ]; then
# Single shared static ID.
echo "user($1) = $2"
echo "group($1) = $2"
elif [[ $2 == *:* ]]; then
# UID:<group>.
uid=$(echo $2 | cut -d':' -f1 -)
group=$(echo $2 | cut -d':' -f2 -)
if [ ! -z "${group##*[!0-9]*}" ]; then
# UID:GID.
echo "user($1) = ${uid}"
echo "group($1) = ${group}"
else
# UID:<groupname>.
echo "user($1) = ${uid}"
echo "group(${group})"
fi
else
# Dynamic (or something else uninteresting).
echo "user($1)"
echo "group($1)"
fi
}
process_g() {
if [ ! -z "${2##*[!0-9]*}" ]; then
# Static GID.
echo "group($1) = $2"
else
# Dynamic (or something else uninteresting).
echo "group($1)"
fi
}
parse() {
while read line; do
[ "${line:0:1}" = '#' -o "${line:0:1}" = ';' ] && continue
line="${line## *}"
[ -z "$line" ] && continue
set -- $line
case "$1" in
('u')
process_u "$2" "$3"
;;
('g')
process_g "$2" "$3"
;;
('m')
echo "user($2)"
echo "group($3)"
;;
esac
done
}
while read fn; do
parse < "$fn"
done