Find orphan library packages

rng · 02-16-2016, 01:09 AM

I am trying to find orphan library packages. Following commands give all the libraries needed by all executables in /usr/bin folder:

Code:

$ cd /usr/bin
$ for FF in *; do ldd $FF;  done   | cut -d '=' -f 1  | cut -d '(' -f 1 | sort | uniq > ~/lddout.txt

This produces a list of about 1150 library files needed on my system.

For getting installed library files, I can run:

Code:

$ cd /usr/lib 
$ find -type f -printf "%f\n" | sort > ~/libout.txt

Is it possible to find orphan library packages (i.e. those packages which are not needed by any other package) by comparing (using diff command) the lddout.txt and libout.txt files? Thanks for your help.

kaz2100 · 02-16-2016, 02:08 AM

Hya,

I somewhat think that not all executable sit in /usr/bin.
I also think that not all libraries sit under /usr/lib.

cheers

PS. I do not think that your second query works as you expect.

Quote:

$ cd /usr/lib
$ find -type f -printf "%f\n" | sort > ~/libout.txt

rng · 02-16-2016, 05:30 AM

What is the alternative? How can I find orphan packages using bash commands?

Habitual · 02-16-2016, 07:17 AM

Quote:

Originally Posted by rng

What is the alternative? How can I find orphan packages using bash commands?

What OS? Architecture? Release point?
The ubu flavors have deborphan in popular repos.

We don't want one of these.

rng · 02-16-2016, 11:03 AM

Quote:

What OS? Architecture? Release point?

Can there be a method using bash commands and tools which can be applied to any distribution?

Habitual · 02-16-2016, 11:24 AM

Quote:

Originally Posted by rng

Can there be a method using bash commands and tools which can be applied to any distribution?

Probably not a reliable one.

kaz2100 · 02-16-2016, 06:22 PM

Hya,

It looks like that OP's original scripts are designed to find orphan libraries.
Many library packages contain more than one library.

OP need to find how to trace to a library package from an individual library.

cheers