MAJOR overhaul with per-tty saving and logout autosave

gistfile1.sh

#!/usr/bin/env bash

# Bash snippet to open new shells in most recently visited dir.
# Useful if you want to open a new terminal tab at the present 
# tab's location.

# Put this in your .bash_logout ONLY!

# At logout, remember the PWD, and switch there on next login

	# Set TERMS to 1 if you wish to remember the path separately for
	# each terminal or terminal instance used. So, for example, tty1's
	# recalled path would only be the last path used on tty1, and the same
	# for tty2, tty3, etc.
	# 
	# If TERMS is set to 0, then only one recalled path will be used globally
	# for all terminals
TERMS=1
MEMPATHDIR="${TMPDIR:-~/.temp}/mempath-$(logname)/"

##############################################################################
thisHost="$(hostname -s)"

function savepath () {
	if [[ "x${TERMS}" == "x1" ]]; then
		# using tty-specific path
		thisTty="$(tty | xargs basename | sed -e 's,tty,,')"
	else
		# not using tty-specific path
		thisTty=""
	fi

	thisPwd="$(pwd -P)"
	
	if [[ ! -d $MEMPATHDIR ]]; then
		mkdir -p "$MEMPATHDIR"
	fi
	
		# store it and quit
	echo "$thisPwd" > "${MEMPATHDIR}/${thisHost}${thisTty:+.$thisTty}"
}

function recallpath () {
	thisTty="$(tty | xargs basename | sed -e 's,tty,,')"
	if [[ -e "${MEMPATHDIR}/${thisHost}.${thisTty}" ]]; then
		thisPwd="$(/bin/cat ${MEMPATHDIR}/${thisHost}.${thisTty})"
	elif [[ -e "${MEMPATHDIR}/${thisHost}" ]]; then
		thisPwd="$(/bin/cat ${MEMPATHDIR}/${thisHost})"
	fi
	
	if [[ -n "$thisPwd" ]]; then
		cd "$thisPwd"
	fi
}