Linux screen Recording

The Magical script command under Linux

Script is a magical command that can record the session of a terminal and then use Scriptreplay to play the results of its recordings to others. The benefit of script is that all of your actions in the terminal, the commands you've knocked out, and the results you print can be recorded exactly as they are. Can be applied to teaching, demonstration, audit.

In general, script and Scriptreplay have a default installation in the Linux distribution.

Script-t 2>demo.time-a demo.his start recording, Ctrl+d or exit ends

Scriptreplay demo.time demo.his Playback

Two configuration files are treated as parameters of the script command. These two files can be casually named, here with Demo.time and Demo.his. Where Demo.time is used to store timing information and describe when each instruction is run; Demo.his is used to store command information output. The-t option is used to import time series data into stderr. The 2> is used for stderr redirection to Demo.time.

Parameters:

-T indicates the time data for the output recording

-F If you need to output to the log file, you can also view the contents of the log file, you can use the-f parameter. PS: Can be used for teaching, two command line-F can be demonstrated in real time

-a outputs recorded files and appends new content to existing content

-Q To enable the script command to run in silent mode

Use script to record someone's behavior

VI ~/.profilescript-t-f-q 2> $USER. Time-a $USER. His

Application:

1. Demonstration Teaching

First Command box

Script-f Demo

Additional command boxes

Scriptreplay-f Demo

Enables real-time synchronous demos

2. Server Security Audit

Direct operation of the server on the line is a big risk, so it is generally by logging on to the springboard machine, and then connected to the online server, the board can access control and security audit, to view the record of everyone on the online server operation

User home directory, modify environment variables, so that users log on will trigger the recording

VI ~/.profilescript-t-f-q 2>/wow/$USER-$UID-' date +%y%m%d%h%m%s '. Time-a/wow/$USER-$UID-' date +%y%m%d%h%m%s '. His

After this, found that there is a problem is each exit, I am accustomed to ctrl+d, and then press the first time to stop the recording, the second time to user exit, how to resolve the add in the back

If ["$SHLVL" = 1]; Then Exitfi

This allows you to stop the recording and exit the user once ctrl+d.

Play

The message must be in the front, the command message is in the back.

This article from "Wang Xiao Acid" blog, declined reprint!

Linux screen Recording