Create script in /usr/bin called pacclean?

Question

#!/bin/bash
su -c 'pacman -Qdt'
su -c 'pacman -Scc && pacman-optimize'
yaourt -Syua
this script was created to show
1) To list all packages no longer required as dependencies (orphans) (pacman -Qdt)
2) Clean the package cache of packages that are not currently installed (/var/cache/pacman/pkg) and removes all packages from the cache. (pacman -Scc)
3) Improving database access speeds reduces the time taken in database-related tasks, e.g. searching packages and resolving package dependencies. (pacman-optimize)
4) You can update your system including AUR packages (yaourt -Syua)
I think this is a good script i think, but is there a way to streamline it by not entering my password over 3 times? this script i created in /usr/bin and called it pacclean which i made it executable.

Answer 1

I have a script that has much the same concept as this one, but much longer. I'm sure I posted it in this forum before, but as it's changed a little recently, I'll repost here. It may give someone some ideas for how they'd like to wrap pacman themselves, or some coding style thoughts. I install this in /usr/local/sbin/pu and add that same path to sudoers with NOPASSWD set. Note that you don't have to run it with sudo yourself, as it will detect if you are not root and re-run itself in sudo for you if not. Note that this will produce a large amount of noise output on the first run, as the saved state data (/var/lib/pu) won't be populated yet, and so all the comparisons from last run to now will run as if everything in the world is brand new.
#!/bin/bash
# vim:set filetype=sh: *
if [[ "$(/usr/bin/id -u)" != "0" ]] ; then
exec /usr/bin/sudo $0 "$@"
fi
libdir=/var/lib/pu
umask 0022
export LANG=en_US.utf8
export LC_COLLATE=C
# Recreate $libdir
/bin/install -d -o root -g root -m 755 "$libdir"
/bin/rm -rf "$libdir"/*.out
if /usr/bin/tty -s ; then
# Upgrade packages
/usr/bin/pacman -Syu
else
# Update repos
/usr/bin/pacman -Sy
# List upgradeable packages
/usr/bin/pacman -Qqu | /bin/sed -e 's/^/upgradeable /'
fi
echo
# List new packages in repos
/usr/bin/pacman -Slq | /usr/bin/sort -u > "$libdir/avail.out"
[[ -f "$libdir/avail.prev" ]] || /bin/touch "$libdir/avail.prev"
/usr/bin/comm -13 "$libdir/avail.prev" "$libdir/avail.out" | /usr/bin/xargs -r /usr/bin/pacman -Si
/bin/mv -f "$libdir/avail.out" "$libdir/avail.prev"
echo
# List stray dependencies
/usr/bin/pacman -Qqdt | /bin/sed -e 's/^/stray dep /'
# List pacsave/pacorig/pacnew files in /etc
/usr/bin/find /etc \( -name \*.pacnew -o -name \*.pacsave -o -name \*.pacorig \) | /bin/sed -e 's/^/pacfile /'
# List files missing from packages
/usr/bin/pacman -Qqk | /bin/sed -e 's/^/missing file /'
# List new explicit packages
# This also catches removals from base and base-devel
/usr/local/bin/pacexp | /usr/bin/sort > "$libdir/pacexp.out"
[[ -f "$libdir/pacexp.prev" ]] || /bin/touch "$libdir/pacexp.prev"
/usr/bin/comm -13 "$libdir/pacexp.prev" "$libdir/pacexp.out" | /bin/sed -e 's/^/pacexp /'
/bin/mv -f "$libdir/pacexp.out" "$libdir/pacexp.prev"
# List new base / base-devel packages not installed
/usr/bin/comm -13 <(/usr/bin/pacman -Qgq base base-devel | /usr/bin/sort -u) <(/usr/bin/pacman -Sgq base base-devel | /usr/bin/sort -u) > "$libdir/base.out"
[[ -f "$libdir/base.prev" ]] || /bin/touch "$libdir/base.prev"
/usr/bin/comm -13 "$libdir/base.prev" "$libdir/base.out" | /bin/sed -e 's/^/base-add /'
/bin/mv -f "$libdir/base.out" "$libdir/base.prev"
# List new version-mismatched AUR packages and new foreign packages
for pkg in $(/usr/bin/pacman -Qqm | /usr/bin/sort | /usr/bin/tee "$libdir/foreign.out") ; do
localver=$(/usr/bin/pacman -Q $pkg | /bin/cut -d\ -f2)
aurver=$(/usr/bin/curl -s "http://aur.archlinux.org/rpc.php?type=info&arg=$pkg" | /bin/cut -d\" -f18)
[[ -z "$aurver" ]] && continue
[[ "$localver" != "$aurver" ]] && echo "$pkg: $localver -> $aurver"
done > "$libdir/aur.out"
[[ -f "$libdir/foreign.prev" ]] || /bin/touch "$libdir/foreign.prev"
/usr/bin/comm -13 "$libdir/foreign.prev" "$libdir/foreign.out" | /bin/sed -e 's/^/foreign /'
/bin/mv -f "$libdir/foreign.out" "$libdir/foreign.prev"
[[ -f "$libdir/aur.prev" ]] || /bin/touch "$libdir/aur.prev"
/usr/bin/comm -13 "$libdir/aur.prev" "$libdir/aur.out" | /bin/sed -e 's/^/aur /'
/bin/mv -f "$libdir/aur.out" "$libdir/aur.prev"
# Clean out old packages if cache gets too big
if [[ $(/bin/du -sm /var/cache/pacman/pkg/ | /bin/cut -f1) -gt 1000 ]] ; then
/usr/bin/pacman -Sc --noconfirm > /dev/null
echo "clean cache"
fi
# Whack perms on pacman cache into shape
/usr/bin/find /var/cache/pacman/pkg -type f ! -perm 644 -exec /bin/chmod 644 {} +