Bash QuickStats

qstats

#!/bin/bash
#
#  qstats (bash QuickStats)
#
#  Copyright 2017 Mathieu Aubin <[email protected]>
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, 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 more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
#  MA 02110-1301, USA.
#

_dT=$(date +"%Y-%m-%d %H:%M:%S") ;
_tD=$(echo ${_dT} | cut -d' ' -f1) ;
_tT=$(echo ${_dT} | cut -d' ' -f2) ;
_eO="2>/dev/null" ;

_tmP=`getopt -o d --long debug -n 'qstats' -- "${@}"` ;

eval set -- "${_tmP}" ;

while true ; do
    case "${1}" in
        -d|--debug)
            _eO="2>&1" ;
            shift ;;
        --)
            shift ;
            break ;;
        *)
            echo -e "\033[31mInternal error.\033[0m" ;
            exit 1 ;;
    esac
done

function _getDATA(){
    _mI=$(/usr/bin/free -mh | grep Mem) ;
    _mT=$(echo ${_mI} | awk '{print $2}') ;
    _mU=$(echo ${_mI} | awk '{print $3}') ;
    _uI=$(uptime | cut -d',' -f1 | grep -E -o "up.*" | sed -e 's/up//' -e 's/\ \ //g') ;
    _displayDATA ;
}

function _displayDATA() {
    echo -e "\n\033[1m[${_tD}] QUiCK STATS FOR:\033[0m \033[3m$(hostname)\033[0m\n" ;
    echo -e "\033[1m  [${_tT}] UPTiME iNFOS\033[0m" ;
    echo -e "\033[1m    Up:\033[0m ${_uI}" ;
    echo -e "\033[1m  [${_tT}] MEMORY iNFOS\033[0m" ;
    echo -e "\033[1m    Used :\033[0m ${_mU}" ;
    echo -e "\033[1m    Total:\033[0m ${_mT}\n" ;
}

eval _getDATA "${_eO}" ;
[[ "$?" -ge "1" ]] && echo -e "\033[31mAn error has ocurred.\033[0m" ;
unset _mI _mT _mU _uI _dT _tD _tT _eO ;

NOTE - Initial release had a typo error, mixup between memtotal and memused

Little QuickStats (qstats) i made on request.

Available on GitHub at:
https://gist.github.com/mathieu-aubin/06673823e79f201fd2f8858f5aa3e581

AsciiCast on Asciinema at:
https://asciinema.org/a/110338

Can be run straight from GitHub (using RAW url) like so:

bash <(curl -s https://gist.githubusercontent.com/mathieu-aubin/06673823e79f201fd2f8858f5aa3e581/raw/4f5687c93ce2eba03313304e2c97a029206da84f/qstats)

If somehow you get an error, use switches [-d|--debug] to view error message.