45 lines
964 B
Plaintext
45 lines
964 B
Plaintext
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#!/bin/bash
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iface="$1"
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cmd="$2"
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net_format="%3d"
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this_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
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source "$this_dir/common"
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get_bits() {
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awk '{print($1*8)}' "$1"
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}
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get_down(){
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get_bits "/sys/class/net/$iface/statistics/rx_bytes"
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}
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get_up(){
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get_bits "/sys/class/net/$iface/statistics/tx_bytes"
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}
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get_time() {
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date +%s.%N
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}
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if [[ "$cmd" == "down" ]]; then
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bits="$(get_down)"
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elif [[ "$cmd" == "up" ]]; then
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bits="$(get_up)"
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else
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echo "Invalid command"
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exit 1
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fi
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cached_eval "network_$cmd" "$bits" "$(get_time)" \
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| awk -v f="$net_format" \
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"$(printf '%s' \
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'{x=$1} END { '\
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'if (x>=1073741824) printf(f " Gib/s", x/1073741824); '\
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'else if (x>=1048576) printf(f " Mib/s", x/1048576); '\
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'else if (x>=1024) printf(f " Kib/s", x/1024); '\
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'else printf(f " bit/s", x)'\
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'}')"
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