#
# Displays dpkg history.
# Authors:
# Peter Leung <commandolinux@gmail.com>
# Benjamin Boudreau <boudreau.benjamin@gmail.com>
# Sorin Ionescu <sorin.ionescu@gmail.com>
case "$1" in
(install)
zgrep --no-filename 'install ' $(ls -rt /var/log/dpkg*)
;;
(upgrade|remove)
zgrep --no-filename "$1" $(ls -rt /var/log/dpkg*)
(rollback)
zgrep --no-filename upgrade $(ls -rt /var/log/dpkg*) \
| grep "$2" -A10000000 \
| grep "$3" -B10000000 \
| awk '{print $4"="$5}'
(list)
zcat $(ls -rt /var/log/dpkg*)
(*)
cat >&2 <<EOF
Commands:
install - List installed packages
upgrade - List upgraded packages
remove - List removed packages
rollback - List rollback information
list - Display contents of dpkg logs
EOF
esac
