To know which package brought particular so library

Question

I have /usr/lib32/libstdc++.so.6 library on my Ubuntu system. I would like to know which package brought it there. How to know that?

Answer 1

Please run dpkg -S /usr/lib32/libstdc++.so.6

Answer 2

Now that you know which package /usr/lib32/libstdc++.so.6 came from, you can find out which packages depend on lib32stdc++6 by running:

sudo apt-cache rdepends lib32stdc++6

This will give you a list of package(s) that depend/installed lib32stdc++6

Answer 3

Another solution is to use the tool apt-file :

• Install it using :

  $ sudo apt-get update && sudo apt-get install apt-file
  

• Update it's database :

  $ sudo apt-file update
  

• Search for your desired file :

  $ sudo apt-file search /usr/lib32/libstdc++.so.6
  

The result should be :

$ apt-file search /usr/lib32/libstdc++.so.6
lib32stdc++6: /usr/lib32/libstdc++.so.6
lib32stdc++6: /usr/lib32/libstdc++.so.6.0.21
lib32stdc++6: /usr/share/gdb/auto-load/usr/lib32/libstdc++.so.6.0.21-gdb.py
lib32stdc++6-5-dbg: /usr/lib/debug/usr/lib32/libstdc++.so.6.0.21

/usr/lib32/libstdc++.so.6

Which lead us to know that the package which installed should be lib32stdc++6.

Answer 4

You can search it in https://packages.ubuntu.com

For your case will be this link.