Bash – How to Log Terminal Number in Bash History

bashbashrccommand history

We have more than one admin, and sometimes need to know from which pts the command was issued.

Now the history looks like:

998  2016-08-25 10:16:41 ls /usr/local/apache/htdocs/

Is there any way to add the pts number to each line so then the user can be checked via last?

Current bashrc (in part related to history)

# append to the history file, don't overwrite it
shopt -s histappend
# Don't save trivial one and two character commands on the history list
export HISTIGNORE="?:??:exit"
export HISTTIMEFORMAT="%h %d %T "
export HISTCONTROL="ignoredups"
export HISTFILESIZE=20000
export HISTSIZE=20000
PROMPT_COMMAND='history -a'

Best Answer

You can modify the export HISTTIMEFORMAT="%h %d %T " and add the information of the filename of the terminal through the tty command, like 

export TERMINAL=`tty | cut -d\/ -f4`
export HISTTIMEFORMAT="$TERMINAL %h %d %T "
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