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Naan Yaar
Bodhisattva
Joined: 27 Jun 2002
Posts: 1549
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 Posted: Sun Jul 07, 2002 5:04 am Post subject: Find packages that have a dependency on a specified package |
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Hi,
A trivial script that will tell you what packages depend on the installation of the specified one. I found this useful when I wanted to check why a specified package was installed on my system at all, e.g., rpm
It is no speed demon, but it is useful 
| Code: |
#/bin/bash
if [ $# == 0 ]; then
echo -e 'Usage: $0 <package>'
echo -e 'where <package> is a full or partial name of an installed package'
exit
fi
for x in `/usr/lib/portage/bin/pkglist`; do
if [ "`emerge -pue =$x | grep $1`" != "" ]; then
echo $x
fi
done
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Last edited by Naan Yaar on Mon Jul 22, 2002 8:52 pm; edited 1 time in total |
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delta407
Bodhisattva
Joined: 23 Apr 2002
Posts: 2876
Location: Chicago, IL
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| Posted: Sun Jul 07, 2002 5:06 am Post subject: |
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Moving to Tips and Tricks.
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I don't believe in witty sigs. |
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cpwins
Tux's lil' helper
Joined: 08 Jul 2002
Posts: 130
Location: The Pandemonium Fortress
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| Posted: Wed Jul 10, 2002 12:41 pm Post subject: |
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This is great! Just what I was looking for.  |
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lx
Veteran
Joined: 28 May 2002
Posts: 1012
Location: Netherlands
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| Posted: Wed Nov 13, 2002 3:12 pm Post subject: |
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Isn't it quicker to do
| Code: | | find /var/db/pkg -iname "*depend*" -exec grep -iH somepackage {} ';' |
Well I do it all the time, the output ain't that pretty (well you could write something for it) but it works. Well it only gives the packages which are directly depend on a package and doesn't account for virtual/x11 or similar (well if you want X11 you could search for xfree and virtual/X11). But it's sufficient in most cases and much much much much quicker.
Besides directly depend packages only has it's benefits: I tried your script on xfree and then it comes up with my kernel source, cause there's some package depending on X, but I'm sure the kernel doesn't depend on X.
Cya lX.
Ps: you could do a emerge -p -e world to get a list of packages that don't depend on the searched package, everything before the searched package doesn't depend on your package, so you only search the tail of the list. using -pe.... 
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"Remember there's a big difference between kneeling down and bending over.", Frank Zappa |
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