linux包之diff

[root@84-monitor ~]# rpm -qf /usr/bin/diff
diffutils-2.8.1-28.el6.x86_64
[root@84-monitor ~]# rpm -ql diffutils
/usr/bin/cmp
/usr/bin/diff
/usr/bin/diff3
/usr/bin/sdiff

http://blog.chinaunix.net/uid-26000296-id-3507646.html