How to reinstall all packages in the system?

Question

I accidentaly remove whole /usr directory, so all installed apps are gone. I then installed the basic system from the install CD, all user and system configuration leave untouched. pacman even remember what packages were installed, when i try install some of the previously installed packages pacman says: this package is up to date, upgrade anyway Y/n? So all I must do to get my system up and running again is reinstall all previsously installed packages. Is there any way how to do this by a single command? Or some script? I don't want to reinstall all the packages one by one ...
Last edited by kotyz (2007-07-03 18:27:21)

Answer 1

Mefju wrote:
If you're pacman database is not removed, you could use something like this
#! /bin/sh
for pkg in $(pacman -Q | cut -d' ' -f1); do
pacman -S --noconfirm $pkg
done
pacman would error out if he's using any non-repo pkgs (like stuff from unsuported AUR)
working on a script now, will edit when i get it working.
#!/bin/bash
pacman -Q | awk '{ print $1 }' > installed.tmp
for i in $(pacman -Qm | awk '{ print $1 }'); do
cat installed.tmp | sed "s/^$i\$//;" > installed.tmp.1
mv installed.tmp.1 installed.tmp
done
pacman -S --noconfirm `cat installed.tmp`
rm installed.tmp
i think that'll do the trick... just make sure you backup your /etc before hand, it might overwrite stuff.
Last edited by kano (2007-07-03 19:47:07)