linux shell之回放和广播

• 回放：script -t 2>timing.log -a output.session
  timing.log存储时序信息，output.session存储命令数据 command… exit

root@ubuntu:~# script -t 2>timing.log -a output.session
Script started, file is output.session
root@ubuntu:~# date
Tue Oct 24 09:12:44 PDT 2017
root@ubuntu:~# ls
demo.sh  expr.sh  orcale_install.sh  output.session  timing.log
root@ubuntu:~# who
root tty1         2017-10-22 04:39
root pts/0        2017-10-24 09:02 (192.168.1.100)
root pts/1        2017-10-24 09:03 (192.168.1.100)
root pts/2        2017-10-22 07:09 (192.168.1.102)
root pts/3        2017-10-23 08:07 (192.168.1.102)
root pts/4        2017-10-23 08:49 (192.168.1.102)
root pts/6        2017-10-24 09:11 (192.168.1.100)
root@ubuntu:~# exit
exit
Script done, file is output.session
root@ubuntu:~# 

回放：scriptreplay timing.log output.session

root@ubuntu:~# scriptreplay timing.log output.session
root@ubuntu:~# date
Tue Oct 24 09:12:44 PDT 2017
root@ubuntu:~# ls
demo.sh  expr.sh  orcale_install.sh  output.session  timing.log
root@ubuntu:~# who
root tty1         2017-10-22 04:39
root pts/0        2017-10-24 09:02 (192.168.1.100)
root pts/1        2017-10-24 09:03 (192.168.1.100)
root pts/2        2017-10-22 07:09 (192.168.1.102)
root pts/3        2017-10-23 08:07 (192.168.1.102)
root pts/4        2017-10-23 08:49 (192.168.1.102)
root pts/6        2017-10-24 09:11 (192.168.1.100)
root@ubuntu:~# exit
exit

root@ubuntu:~# 

• 广播
  打开两个终端1和终端2
  mkfifo scriptfifo:其实就是命名一个命名管道，将输入的命令和输出信息写入到scriptfifo中，再另个终端中读取管道中内容就可以了
  终端1：
  mkfifo scriptfifo
  command….
  exit
  终端2
  cat scriptfifo