sshh

#!/bin/sh
# SSH History Logger 1.0.6
# Copyright (C) Alexander Kozhevnikov <mentalisttraceur@gmail.com> 2015-06-05;
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public Licence as published by
# the Free Software Foundation, either version 3 of the licence or,
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for details.
# 
# You should've received a copy of the GNU General Public License
# with this program. If not, see <http://www.gnu.org/licences/>,
# or write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330 Boston MA 02111-1307 USA.

# On 2015-06-05, this script was compatible with Bourne and POSIX shells.

logdir=~/.ssh_history

case $ZSH_VERSION in ?*) alias -g '${1+"$@"}="$@"'; esac

# Create the folder with user-only read+search permissions if it doesn't exist.
mkdir -m 700 -p "$logdir" || exit 1

# ISO8601 allows for time to be specified with or without colons. But MSDOS and
# Windows ruined it for everyone (to this day exFAT, a common filesystem on USB
# drives, SD cards, etc, does not support colons in filenames), so support for
# colons in filenames is limited in the wild. Therefore, going with the
# no-colon option.
timestamp=`date -Is | sed s/://g`

logfile=`mktemp "$logdir"/"$timestamp"_"$*"_XXXXXX` || exit 2

exec 4>&1
exitcode=`
{
 {
  ssh ${1+"$@"} 3>&-
  printf $? 1>&3
 } 4>&- | tee -i "$logfile" 1>&4
} 3>&1`
exec 4>&-

exit $exitcode