Here lists different ways to capature tyescript of sessions on linux.

Script

It's the most popular tool pepole now using on linux to make typescript of everything printed on your terminal.
If the argument file is given, script saves all dialogue in file.  If no file name is given, the typescript is saved in the file typescript.

Append mode

     -a      Append the output to file or typescript, retaining the prior contents.

$ script -a ssh_session.20140709
Script started, file is ssh_session.20140709

Command line mode

     -c COMMAND
             Run the COMMAND rather than an interactive shell.  This makes it easy for a script to capture the output of a program that behaves differently when its stdout is not a tty.

$ script -c who -a ssh_session.20140709
Script started, file is ssh_session.20140709
xliu     :0           2014-07-09 21:41 (:0)
xliu     pts/0        2014-07-09 23:47 (:0)
xliu     pts/1        2014-07-10 00:28
Script done, file is ssh_session.20140709

Stop script

The script ends when the forked shell exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)).

More options

     -f      Flush output after each write. This is nice for telecooperation: One person does ‘mkfifo foo; script -f foo’ and another can supervise real-time what is being done using ‘cat foo’.

     -q      Be quiet.

     -t      Output timing data to standard error. This data contains two fields, separated by a space. The first field indicates how much time elapsed since the previous output. The second field indicates how many characters were output this time. This information can be used to replay typescripts with realistic typing and output delays.

TEE

$su - testuser | tee -a login.output
Password:
attached to agent socket
$whoami
testuser
$exit
logout
$^C
$cat login.output
attached to agent socket
simon
the disadvantage is that tee doesn't record issued command, but only the output

Save session via tool like winscp software

Click save option before you start your login session.


Other software also can do the same thing, like minicom etc..

 

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