ldd

ldd is a command that displays the Dynamic Libaries required by a particular binary.

Running ldd on ls

$ ldd /usr/bin/ls
	linux-vdso.so.1 (0x00007ffe6badf000)
	libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f86e97d8000)
	libcap.so.2 => /lib64/libcap.so.2 (0x00007f86e97ce000)
	libc.so.6 => /lib64/libc.so.6 (0x00007f86e9400000)
	libpcre2-8.so.0 => /lib64/libpcre2-8.so.0 (0x00007f86e9732000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f86e9842000)