http://man.linuxde.net/pssh
保存每台服务器运行的结果：
# pssh -h IP.txt -i -o /tmp/pssh/ uptime
[1] 11:19:47 [SUCCESS] Feb.mars.he 11:19:55 up 4 days, 16:31, 2 users, load average: 0.02, 0.03, 0.00
[2] 11:19:47 [SUCCESS] Jan.mars.he 11:19:56 up 3 days, 23:30, 0 users, load average: 0.01, 0.00, 0.00
[3] 11:19:47 [SUCCESS] Mar.mars.he 11:19:56 up 4 days, 16:30, 1 user, load average: 0.00, 0.00, 0.00
我们来看一下/tmp/pssh/下的文件及其内容
# ll /tmp/pssh/
总用量 12 -rw-r--r--. 1 root root 70 12月 1 11:19 Feb.mars.he -rw-r--r--. 1 root root 70 12月 1 11:19 Jan.mars.he -rw-r--r--. 1 root root 69 12月 1 11:19 Mar.mars.he # cat /tmp/pssh/* 11:19:55 up 4 days, 16:31, 2 users, load average: 0.02, 0.03, 0.00 11:19:56 up 3 days, 23:30, 0 users, load average: 0.01, 0.00, 0.00 11:19:56 up 4 days, 16:30, 1 user, load average: 0.00, 0.00, 0.00
