diff options
Diffstat (limited to 'config/i3blocks/scripts')
-rwxr-xr-x | config/i3blocks/scripts/bandwidth | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/config/i3blocks/scripts/bandwidth b/config/i3blocks/scripts/bandwidth new file mode 100755 index 0000000..cfefaf2 --- /dev/null +++ b/config/i3blocks/scripts/bandwidth @@ -0,0 +1,82 @@ +#!/bin/bash +# Copyright (C) 2012 Stefan Breunig <stefan+measure-net-speed@mathphys.fsk.uni-heidelberg.de> +# Copyright (C) 2014 kaueraal +# Copyright (C) 2015 Thiago Perrotta <perrotta dot thiago at poli dot ufrj dot br> + +# 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 3 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, see <http://www.gnu.org/licenses/>. + +INTERFACE=$(ip route | awk '/^default .* (wlp|enp)/ { print $5 ; exit }') + +# Issue #36 compliant. +if ! [ -e "/sys/class/net/${INTERFACE}/operstate" ] || ! [ "`cat /sys/class/net/${INTERFACE}/operstate`" = "up" ] +then + exit 0 +fi + +# path to store the old results in +path="/dev/shm/$(basename $0)-${INTERFACE}" + +# grabbing data for each adapter. +read rx < "/sys/class/net/${INTERFACE}/statistics/rx_bytes" +read tx < "/sys/class/net/${INTERFACE}/statistics/tx_bytes" + +# get time +time=$(date +%s) + +# write current data if file does not exist. Do not exit, this will cause +# problems if this file is sourced instead of executed as another process. +if ! [[ -f "${path}" ]]; then + echo "${time} ${rx} ${tx}" > "${path}" + chmod 0666 "${path}" +fi + +# read previous state and update data storage +read old < "${path}" +echo "${time} ${rx} ${tx}" > "${path}" + +# parse old data and calc time passed +old=(${old//;/ }) +time_diff=$(( $time - ${old[0]} )) + +# sanity check: has a positive amount of time passed +[[ "${time_diff}" -gt 0 ]] || exit + +# calc bytes transferred, and their rate in byte/s +rx_diff=$(( $rx - ${old[1]} )) +tx_diff=$(( $tx - ${old[2]} )) +rx_rate=$(( $rx_diff / $time_diff )) +tx_rate=$(( $tx_diff / $time_diff )) + +# shift by 10 bytes to get KiB/s. If the value is larger than +# 1024^2 = 1048576, then display MiB/s instead + +# incoming +echo -n "IN " +rx_kib=$(( $rx_rate >> 10 )) +if [[ "$rx_rate" -gt 1048576 ]]; then + printf '%sM' "`echo "scale=1; $rx_kib / 1024" | bc`" +else + echo -n "${rx_kib}K" +fi + +echo -n " " + +# outgoing +echo -n "OUT " +tx_kib=$(( $tx_rate >> 10 )) +if [[ "$tx_rate" -gt 1048576 ]]; then + printf '%sM' "`echo "scale=1; $tx_kib / 1024" | bc`" +else + echo -n "${tx_kib}K" +fi |