Real-time SSH history monitor

ssh-histmon.sh

#!/bin/bash
#----------AUTHOR------------
	# Jacob Salmela
	# 15 November 2013
	# https://github.com/jakesalmela/

#----------RESOURCES---------
	# http://askubuntu.com/questions/80371/bash-history-handling-with-multiple-terminals
	# http://www.csgnetwork.com/epochtime.html

#---------DESCRIPTION--------
	# This script can be run on a local machine.  
	# It allows you to view the commands that are entered on the remote machine.
	# It also saves the output as a log file
	#
	# In order for this to work properly, the remote host needs to have some settings in ~/.bash_profile
	#
	#		export PROMPT_COMMAND='history -a'
	#
	# I also like to have it timestamped:
	#	
	#		HISTTIMEFORMAT="%Y-%m-%d %T "
	# 
	# If the above was added, the output on the local machine will show the timestamp as seconds since the epoch.
	# If reviewing the logs later, you will probably want to convert it
	# If you run the history command, it will show the date properly formatted, but viewing the history file directly shows time since the epoch
	#
	# For best results, use SSH keys to avoid having to enter a password

#-----------USAGE------------
	# To run: 
	#
	#	./real-time-history-monitor-over-ssh.sh <remoteuser> <remotehost>

#----------VARIABLES---------
	# Remote user for connecting via SSH
	remoteUser=$1	
	
	# Remote host--IP or hostname
	remoteHost=$2
	
	# Change these according to your environment:
	
	# Log file location
	logLoc="/Users/Shared/"
		
#----------FUNCTIONS---------
##################################
function monitorCmdsOnRemoteHost()
	{
	# Connect to the remote host over SSH and tail the .bash_history file continuously.
	# On the local machine, view the output and save it to a file at the same time (via tee)
	echo "Connecting as $remoteUser to $remoteHost, tailing the history file, and saving the output locally..."

 	ssh $remoteUser@$remoteHost 'tail -f ~/.bash_history' | tee $logLoc/hisshtory.log
 	  	 	  	
	echo "Connection closed.  Log file saved to: $logLoc"
	}
	
#---------------------------------#
#-------------SCRIPT--------------#
#---------------------------------#
monitorCmdsOnRemoteHost