postinst is in libuuid1 2.20.1-5.1ubuntu20.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | #!/bin/sh
set -e
ADDUSERCONF='/etc/adduser.conf'
if test -f $ADDUSERCONF; then
FIRST_SYSTEM_UID=$(sed -n "s/^[[:space:]]*FIRST_SYSTEM_UID[[:space:]]*=[[:space:]]*[\"']\?\([^\"']*\)[\"']\?/\1/p" $ADDUSERCONF)
LAST_SYSTEM_UID=$(sed -n "s/^[[:space:]]*LAST_SYSTEM_UID[[:space:]]*=[[:space:]]*[\"']\?\([^\"']*\)[\"']\?/\1/p" $ADDUSERCONF)
FIRST_SYSTEM_GID=$(sed -n "s/^[[:space:]]*FIRST_SYSTEM_GID[[:space:]]*=[[:space:]]*[\"']\?\([^\"']*\)[\"']\?/\1/p" $ADDUSERCONF)
LAST_SYSTEM_GID=$(sed -n "s/^[[:space:]]*LAST_SYSTEM_GID[[:space:]]*=[[:space:]]*[\"']\?\([^\"']*\)[\"']\?/\1/p" $ADDUSERCONF)
fi
if test -z "$FIRST_SYSTEM_UID"; then
FIRST_SYSTEM_UID=100
fi
if test -z "$LAST_SYSTEM_UID"; then
LAST_SYSTEM_UID=999
fi
if test -z "$FIRST_SYSTEM_GID"; then
FIRST_SYSTEM_GID=100
fi
if test -z "$LAST_SYSTEM_GID"; then
LAST_SYSTEM_GID=999
fi
if ! getent group | grep -q libuuid; then
groupadd -f -K GID_MIN=$FIRST_SYSTEM_GID -K GID_MAX=$LAST_SYSTEM_GID libuuid
fi
if ! getent passwd | grep -q libuuid; then
useradd -d /var/lib/libuuid -K UID_MIN=$FIRST_SYSTEM_UID -K UID_MAX=$LAST_SYSTEM_UID -g libuuid libuuid
fi
[ -f /etc/subuid ] && sed -i "/^libuuid:/d" /etc/subuid
[ -f /etc/subgid ] && sed -i "/^libuuid:/d" /etc/subgid
mkdir -p /var/lib/libuuid
chown libuuid:libuuid /var/lib/libuuid
chmod 2775 /var/lib/libuuid
# Automatically added by dh_makeshlibs
if [ "$1" = "configure" ]; then
ldconfig
fi
# End automatically added section
exit 0
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