ldd (Unix)

user@home ~/ $ objdump -p /path/program | grep NEEDED 

user@home ~/ $ ldd /usr/bin/mp3blaster  linux-vdso.so.1 => (0x00007fff8fdff000)  libsidplay.so.1 => /usr/lib/libsidplay.so.1 (0x00007f4ea98ec000)  libvorbisfile.so.3 => /usr/lib/libvorbisfile.so.3 (0x00007f4ea96e4000)  libvorbis.so.0 => /usr/lib/libvorbis.so.0 (0x00007f4ea94b6000)  libncurses.so.5 => /lib/libncurses.so.5 (0x00007f4ea9273000)  libpthread.so.0 => /lib/libpthread.so.0 (0x00007f4ea9056000)  libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f4ea8d41000)  libm.so.6 => /lib/libm.so.6 (0x00007f4ea8abe000)  libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007f4ea88a7000)  libc.so.6 => /lib/libc.so.6 (0x00007f4ea8523000)  libogg.so.0 => /usr/lib/libogg.so.0 (0x00007f4ea831c000)  libdl.so.2 => /lib/libdl.so.2 (0x00007f4ea8118000)  /lib64/ld-linux-x86-64.so.2 (0x00007f4ea9b59000) user@home ~/ $ ldd /usr/lib/i386-linux-gnu/libstdc++.so.6.0.20  linux-gate.so.1 (0xb7733000)  libm.so.6 => /lib/i386-linux-gnu/i686/cmov/libm.so.6 (0xb75da000)  libc.so.6 => /lib/i386-linux-gnu/i686/cmov/libc.so.6 (0xb742f000)  /lib/ld-linux.so.2 (0xb7734000)  libgcc_s.so.1 => /lib/i386-linux-gnu/libgcc_s.so.1 (0xb7411000)