From 3b0142cedcde39e4c2097ecd916a870a3ced5ec6 Mon Sep 17 00:00:00 2001
From: Vito Graffagnino <vito@graffagnino.xyz>
Date: Tue, 8 Sep 2020 18:10:49 +0100
Subject: Added the relevent parts of the .config directory. Alss add ssh
 config

---
 .i3/scripts/bandwidth.sh | 97 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100755 .i3/scripts/bandwidth.sh

(limited to '.i3/scripts/bandwidth.sh')

diff --git a/.i3/scripts/bandwidth.sh b/.i3/scripts/bandwidth.sh
new file mode 100755
index 0000000..22414e9
--- /dev/null
+++ b/.i3/scripts/bandwidth.sh
@@ -0,0 +1,97 @@
+#!/usr/bin/env bash
+#
+# Copyright (C) 2015 James Murphy
+# Licensed under the terms of the GNU GPL v2 only.
+#
+# i3blocks blocklet script to monitor bandwidth usage
+
+iface="${BLOCK_INSTANCE:-$(ip route | awk '/^default/ {print $5; exit}')}"
+dt=3
+unit=Mb
+printf_command='printf "%-5.1f/%5.1f %s/s\n", rx, wx, unit;'
+
+function check_proc_net_dev {
+    if [ ! -f "/proc/net/dev" ]; then
+        echo "/proc/net/dev not found"
+        exit 1
+    fi
+}
+
+function list_interfaces {
+    check_proc_net_dev
+    echo "Interfaces in /proc/net/dev:"
+    grep -o "^[^:]\\+:" /proc/net/dev | tr -d " :"
+}
+
+while getopts i:t:u:p:lh opt; do
+    case "$opt" in
+        i) iface="$OPTARG" ;;
+        t) dt="$OPTARG" ;;
+        u) unit="$OPTARG" ;;
+        p) printf_command="$OPTARG" ;;
+        l) list_interfaces && exit 0 ;;
+        h) printf \
+"Usage: bandwidth [-i interface] [-t time] [-u unit] [-p printf_command] [-l] [-h]
+Options:
+-i\tNetwork interface to measure. Default determined using \`ip route\`.
+-t\tTime interval in seconds between measurements. Default: 3
+-u\tUnits to measure bytes in. Default: Mb
+\tAllowed units: Kb, KB, Mb, MB, Gb, GB, Tb, TB
+\tUnits may have optional it/its/yte/ytes on the end, e.g. Mbits, KByte
+-p\tAwk command to be called after a measurement is made. 
+\tDefault: printf \"%%-5.1f/%%5.1f %%s/s\\\\n\", rx, wx, unit;
+\tExposed variables: rx, wx, tx, unit, iface
+-l\tList available interfaces in /proc/net/dev
+-h\tShow this help text
+" && exit 0;;
+    esac
+done
+
+check_proc_net_dev
+
+if [ -z "$iface" ]; then
+    echo Could not determine default interface
+    exit 1
+fi
+
+case "$unit" in
+    Kb|Kbit|Kbits)   bytes_per_unit=$((1024 / 8));;
+    KB|KByte|KBytes) bytes_per_unit=$((1024));;
+    Mb|Mbit|Mbits)   bytes_per_unit=$((1024 * 1024 / 8));;
+    MB|MByte|MBytes) bytes_per_unit=$((1024 * 1024 / 8));;
+    Gb|Gbit|Gbits)   bytes_per_unit=$((1024 * 1024 * 1024 / 8));;
+    GB|GByte|GBytes) bytes_per_unit=$((1024 * 1024 * 1024));;
+    Tb|Tbit|Tbits)   bytes_per_unit=$((1024 * 1024 * 1024 * 1024 / 8));;
+    TB|TByte|TBytes) bytes_per_unit=$((1024 * 1024 * 1024 * 1024));;
+    *) echo Bad unit "$unit" && exit 1;;
+esac
+
+scalar=$((bytes_per_unit * dt))
+init_line=$(cat /proc/net/dev | grep "^[ ]*$iface:")
+if [ -z "$init_line" ]; then
+    echo Interface not found in /proc/net/dev: "$iface"
+    exit 1
+fi
+
+init_received=$(awk '{print $2}' <<< $init_line)
+init_sent=$(awk '{print $10}' <<< $init_line)
+sleep "$dt"
+
+(while true; do cat /proc/net/dev; sleep "$dt"; done) |\
+    stdbuf -oL grep "^[ ]*$iface:" |\
+    awk -v scalar="$scalar" -v unit="$unit" -v iface="$iface" '
+BEGIN{old_received='"$init_received"';old_sent='"$init_sent"'}
+{
+    received=$2
+    sent=$10
+    rx=(received-old_received)/scalar;
+    wx=(sent-old_sent)/scalar;
+    tx=rx+wr;
+    old_received=received;
+    old_sent=sent;
+    if(rx >= 0 && wx >= 0){
+        '"$printf_command"';
+        fflush(stdout);
+    }
+}
+'
-- 
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