Reload your bash profile in all open bash instances

reload.bash

# put this in your bash profile (change the line below if you use .bash_profile)

# refresh profile on USR1 signal
trap 'eval $(PATH= /usr/libexec/path_helper -s) && source ~/.profile' USR1

# send USR1 signal to all bash instances
reload() {
	ps -xo pid,command | grep ' \-bash' | awk '{print $1}' | while read pid; do
		kill -USR1 $pid
	done
}