使っているライブラリを調べる

こんな感じ。

$ ldd `which sshd`
/usr/sbin/sshd:
        libopie.so.2 => /usr/lib/libopie.so.2 (0x28088000)
        libmd.so.2 => /usr/lib/libmd.so.2 (0x28091000)
        libssh.so.2 => /usr/lib/libssh.so.2 (0x2809a000)
        libcrypt.so.2 => /usr/lib/libcrypt.so.2 (0x280c9000)
        libcrypto.so.3 => /usr/lib/libcrypto.so.3 (0x280e2000)
        libutil.so.3 => /usr/lib/libutil.so.3 (0x281d9000)
        libz.so.2 => /usr/lib/libz.so.2 (0x281e2000)
        libwrap.so.3 => /usr/lib/libwrap.so.3 (0x281ef000)
        libpam.so.1 => /usr/lib/libpam.so.1 (0x281f7000)
        libc.so.4 => /usr/lib/libc.so.4 (0x28201000)