Display shared libraries used by executables in linux

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So I want to know how to list all the libraries associated with executables on my system. Then I'd like to rank them according to the libraries which are used most with their corresponding binaries. How do I do this?
Jul 3, 2019 in Linux Administration by Atul
• 10,240 points
1,066 views

1 answer to this question.

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In order to do this, you need to:

  1. Use ldd to list shared libraries for each executable
  2. Clean the output
  3. Sort, compute counts and sort by count

Now, to do this for all binaries in the /bin directory:

find /bin -type f -perm /a+x -exec ldd {} \; \
| grep so \
| sed -e '/^[^\t]/ d' \
| sed -e 's/\t//' \
| sed -e 's/.*=..//' \
| sed -e 's/ (0.*)//' \
| sort \
| uniq -c \
| sort -n

If you want to search all the directories just use '/' instead of '/bin':

This is the output sample for the bin directory:

  1 /lib64/libexpat.so.0
  1 /lib64/libgcc_s.so.1
  1 /lib64/libnsl.so.1
  1 /lib64/libpcre.so.0
  1 /lib64/libproc-3.2.7.so
  1 /usr/lib64/libbeecrypt.so.6
  1 /usr/lib64/libbz2.so.1
  1 /usr/lib64/libelf.so.1
  1 /usr/lib64/libpopt.so.0
  1 /usr/lib64/librpm-4.4.so
  1 /usr/lib64/librpmdb-4.4.so
  1 /usr/lib64/librpmio-4.4.so
  1 /usr/lib64/libsqlite3.so.0
  1 /usr/lib64/libstdc++.so.6
  1 /usr/lib64/libz.so.1
  2 /lib64/libasound.so.2
  2 /lib64/libblkid.so.1
  2 /lib64/libdevmapper.so.1.02
  2 /lib64/libpam_misc.so.0
..... and so on
answered Jul 3, 2019 by ajs3033
• 7,300 points

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