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Basically i am a tech-enthusiastic.
When we seek for any support, Linux admins used to connect and work remotely on our servers which are hosted in a remote location.
I was so interested to know how they fix the issues , So i came up with this idea of getting the history of terminal commands they typed in to terminal into my mailbox automatically.
I tried this small script and it worked well.
I first created a script which will send a mail with the history contents.
and typed the below lines.
mail -s “Log $HOSTNAME @ $NOW” email@example.com <$HOME/.bash_history
entered !wq to save and quit from vi editor and to make it executable
#chmod -x hist.sh
Now the script is ready to send email with the bash history.
We can test it by executing the script #./hist.sh
Now We can add the script to crontab and schedule it to send email periodically .
I wanted make it to send the command history automatically whenever the .history file is modified whichmeans ,
whenever someone connected to terminal ,I should receive an mail with a copy of the terminal commands history.
To achive this I used incrontab . Incrontab is just like cron scheduler , but with additional capabilities
-which allows us to configure like file ,directory watch etc.,.
I downloaded incron rpm from http://pkgs.repoforge.org/incron/_buildlogs/ and
After adding root user to /etc/incron.allow , I typed incrontab -l which returnded “no table for root’ ,because I dont have any jobs configured yet.
I typed #incrontab -e to create a user table and added this line ~/.bash_history IN_MODIFY /tmp/./hist.sh
( assuming we have the script file in temp directory) .
Voila thats all ! I just received an email