Pacman one liner, need help

enderwig · 2010-11-10 20:18:06

What I am trying to accomplish is when pacman tells me I have an upgradable package, I want to list the other packages on my system that depend on that one before I upgrade.
I've spent hours going over the pacman and grep man pages and the best I have come up with so far is:

pacman -Qi | grep -6 Depends | grep -6 $upgradeablepkg

For example, right now pacman says package dbus-glib has a new version available. Before I upgrade, I would like to see a list of packages that may be effected before proceeding. That really ugly line up there gives me 6 lines on either side of dbus-glib which inludes the package name line, then I get to scoll through it forever deciphering which packages are effected. There has to be a better way, I just can't seem to figure it out myself, so I'm pleading for a little help from those more knowledgable than me. All I really want for output is the name of the effected packages.
Thanks

brisbin33 · 2010-11-10 20:36:04

pacman -R $upgradablepackage --print

Last edited by brisbin33 (2010-11-10 20:39:23)

ber_t · 2010-11-10 20:49:54

Do you only want to see the packages which depend on the upgradable one? You can get them with this command:

pacman -Qi $upgradeablepkg | grep ^Required

enderwig · 2010-11-10 21:11:59

thanks everyone, they both work, but I think I'll stick with the one from ber_t just because I don't want to forget the "--print" in the first one! I was approaching it backwards, never even looked at the Required line in pacman -Qi! Thanks

brisbin33 · 2010-11-10 21:41:40

enderwig wrote:

but I think I'll stick with the one from ber_t just because I don't want to forget the "--print" in the first one!

just an fyi, even if you forget --print, pacman will ask for confirmation.

enderwig · 2010-11-10 23:14:17

If anyone cares, I stuck it in a function in .bashrc, works great!
Thanks again for the help.

function whatdeps() { pacman -Qi "$1" | grep ^Required;}

falconindy · 2010-11-11 00:21:48

pactree (part of pacman-contrib) is great for this kind of stuff. Expect huge speed improvements in pacman 3.5

Last edited by falconindy (2010-11-11 00:22:23)

Arch Linux

#1 2010-11-10 20:18:06

Pacman one liner, need help

#2 2010-11-10 20:36:04

Re: Pacman one liner, need help

#3 2010-11-10 20:49:54

Re: Pacman one liner, need help

#4 2010-11-10 21:11:59

Re: Pacman one liner, need help

#5 2010-11-10 21:41:40

Re: Pacman one liner, need help

#6 2010-11-10 23:14:17

Re: Pacman one liner, need help

#7 2010-11-11 00:21:48

Re: Pacman one liner, need help

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