前提，lsof命令已经安装成功，
[zhang@test sbin]# lsof -i //没有找到lsof命令bash: lsof: command not found[zhang@test sbin]# rpm -qa | grep lsof //查看是否安装成功lsof-4.78-6[zhang@test sbin]# rpm -ql lsof //查看安装文件都在哪里/usr/sbin/lsof/usr/share/doc/lsof-4.78/usr/share/doc/lsof-4.78/00.README.FIRST/usr/share/doc/lsof-4.78/00CREDITS/usr/share/doc/lsof-4.78/00DCACHE/usr/share/doc/lsof-4.78/00DIALECTS/usr/share/doc/lsof-4.78/00DIST/usr/share/doc/lsof-4.78/00FAQ/usr/share/doc/lsof-4.78/00LSOF-L/usr/share/doc/lsof-4.78/00MANIFEST/usr/share/doc/lsof-4.78/00PORTING/usr/share/doc/lsof-4.78/00QUICKSTART/usr/share/doc/lsof-4.78/00README/usr/share/doc/lsof-4.78/00TEST/usr/share/doc/lsof-4.78/00XCONFIG/usr/share/man/man8/lsof.8.gz[zhang@test sbin]# /usr/sbin/lsof -i //运行命令，现在可以正常了COMMAND PID USER FD TYPE DEVICE SIZE NODE NAMEjava 1204 root 10u IPv6 254998 TCP *:http (LISTEN)java 1204 root 18u IPv6 372284 TCP Linux-01:52959->Linux-01:mysql (ESTABLISHED)java 1204 root 19u IPv6 371304 TCP Linux-01:36771->Linux-01:mysql (ESTABLISHED)java 1204 root 20u IPv6 371398 TCP Linux-01:59001->Linux-01:mysql (ESTABLISHED)java 1204 root 21u IPv6 371394 TCP Linux-01:56064->Linux-01:mysql (ESTABLISHED)java 1204 root 22u IPv6 371305 TCP Linux-01:40521->Linux-01:mysql (ESTABLISHED)java 1204 root 23u IPv6 371266 TCP Linux-01:52447->Linux-01:mysql (ESTABLISHED)
……………………………………..
余下的信息省略
[zhang@test sbin]#
别为荒漠的艰难而哭泣，只为奔流入海功成名就那一天，
