linux ldd 命令介绍

ldd /usr/bin/ls

ldd是list, dynamic, dependencies的缩写， 意思是，列出动态库依赖关系

出现如下：

	linux-vdso.so.1 =>  (0x00007ffca65f7000)
	libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f5d903ad000)
	libcap.so.2 => /lib64/libcap.so.2 (0x00007f5d901a8000)
	libacl.so.1 => /lib64/libacl.so.1 (0x00007f5d8ff9f000)
	libc.so.6 => /lib64/libc.so.6 (0x00007f5d8fbd1000)
	libpcre.so.1 => /lib64/libpcre.so.1 (0x00007f5d8f96f000)
	libdl.so.2 => /lib64/libdl.so.2 (0x00007f5d8f76b000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f5d905d4000)
	libattr.so.1 => /lib64/libattr.so.1 (0x00007f5d8f566000)
	libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f5d8f34a000)