ttyrec – Record Terminal Session in Linux


Overview:

ttyrec is a tty(terminal) recorder  in unix like operating system & recorded data can be played back with the help of ttyplay command. ttyrec is just a derivative of script command for recording timing information with microsecond accuracy as well. It can record emacs -nw, vi, lynx, or any programs running on tty.

Installation on Ubuntu :
$ sudo apt-get install ttyrec
Installation on RHEL 6.X / CentOS 6.X / Fedora

First Download the ttyrec rpm package using wget command  and install using below mentioned yum command.

# wget ftp://ftp.pbone.net/mirror/ftp.turbolinux.com/pub/TurboLinux/stable/tested/Desktop/10/i586/ttyrec-1.0.6-1.i586.rpm
# yum localinstall ttyrec-1.0.6-1.i586.rpm

Now start Recording using ttyrec command :

Open the terminal type the below command and when you want to stop the recording type exit.

# ttyrec

When we run the above command recording of terminal session will start and when you type exit, recording will be stopped and a file name ‘ttyrecord’  will be created in the current directory.

Now Play the recorded session using ttyplay command

# ttyplay ttyrecord
commonly used options in ttyplay:
  •   -s SPEED :  multiple the playing speed by SPEED (default is 1).
  •        -n   :  no wait mode.  Ignore the timing information in file.
  •        -p  :   peek another person’s tty session.

We can also change the speed by using special keys like :

  • + or f double the speed of playback.
  • - or s : halve the speed of playback.
  • 0 :     set playback speed to 0, pausing playback.
  • 1 :     set playback to speed 1.0 again.

Measuring the time of recorded data:

Using ttytime command we can determine the time of recorded data in seconds.

#  ttytime ttyrecord
14  ttyrecord


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