Hi Roman,
please find the output bellow.
eccdev:~ # ldd `which sqlplus`
which: no sqlplus in (/sbin:/usr/sbin:/usr/local/sbin:/root/bin:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/X11R6/bin:/usr/games:/usr/lib/mit/bin:/usr/lib/mit/sbin)
ldd: missing file arguments
Try `ldd --help' for more information.
eccdev:~ # ls -l /oracle/DVR/112_64/lib | grep libclntsh
-rwxr-xr-x 1 oradvr dba 0 Mar 15 15:36 libclntsh.so
eccdev:~ #
Thanks
Sunil