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fix: network_bandwidth for mac #2

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Merged
merged 1 commit into from
Mar 29, 2023
Merged

fix: network_bandwidth for mac #2

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47 changes: 34 additions & 13 deletions scripts/network_bandwidth.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,18 @@

INTERVAL="1" # update interval in seconds

network_name=$(tmux show-option -gqv "@tmux2k-network-bandwidth")
# Network interface to monitor
network_name="en0"
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Hardcoding the network name doesn't feel like a good idea, we can use network name passed in as an option for better usability

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so I thought that in mac or any laptop, people mostly use wifi to connect to the internet, and this en0 is the wifi. But, I will change it.

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I'm merging this in, will add the name option and docs

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Okay


if [[ $(uname -s) == "Darwin" ]]; then
network_name="en0" # en0 is wifi, TODO: Update network_name
elif [[ $(uname -s) == "Linux" ]]; then
network_name=$(tmux show-option -gqv "@dracula-network-bandwidth")
else
# update this later for window
echo "Unknown operating system"
exit 1
fi

main() {
while true
Expand All @@ -12,40 +23,50 @@ main() {
output_download_unit=""
output_upload_unit=""

initial_download=$(cat /sys/class/net/"$network_name"/statistics/rx_bytes)
initial_upload=$(cat /sys/class/net/"$network_name"/statistics/tx_bytes)
if [[ $(uname -s) == "Linux" ]]; then
initial_download=$(cat /sys/class/net/"$network_name"/statistics/rx_bytes)
initial_upload=$(cat /sys/class/net/"$network_name"/statistics/tx_bytes)

sleep "$INTERVAL"

sleep "$INTERVAL"
final_download=$(cat /sys/class/net/"$network_name"/statistics/rx_bytes)
final_upload=$(cat /sys/class/net/"$network_name"/statistics/tx_bytes)
else
initial_download=$(netstat -I "$network_name" -b | tail -n 1 | awk '{print $7}')
initial_upload=$(netstat -I "$network_name" -b | tail -n 1 | awk '{print $10}')

final_download=$(cat /sys/class/net/"$network_name"/statistics/rx_bytes)
final_upload=$(cat /sys/class/net/"$network_name"/statistics/tx_bytes)
sleep $INTERVAL

final_download=$(netstat -I "$network_name" -b | tail -n 1 | awk '{print $7}')
final_upload=$(netstat -I "$network_name" -b | tail -n 1 | awk '{print $10}')
fi

total_download_bps=$(expr "$final_download" - "$initial_download")
total_upload_bps=$(expr "$final_upload" - "$initial_upload")
total_download_bps=$(expr $final_download - $initial_download)
total_upload_bps=$(expr $final_upload - $initial_upload)

if [ "$total_download_bps" -gt 1073741824 ]; then
if [ $total_download_bps -gt 1073741824 ]; then
output_download=$(echo "$total_download_bps 1024" | awk '{printf "%.2f \n", $1/($2 * $2 * $2)}')
output_download_unit="gB/s"
elif [ "$total_download_bps" -gt 1048576 ]; then
elif [ $total_download_bps -gt 1048576 ]; then
output_download=$(echo "$total_download_bps 1024" | awk '{printf "%.2f \n", $1/($2 * $2)}')
output_download_unit="mB/s"
else
output_download=$(echo "$total_download_bps 1024" | awk '{printf "%.2f \n", $1/$2}')
output_download_unit="kB/s"
fi

if [ "$total_upload_bps" -gt 1073741824 ]; then
if [ $total_upload_bps -gt 1073741824 ]; then
output_upload=$(echo "$total_download_bps 1024" | awk '{printf "%.2f \n", $1/($2 * $2 * $2)}')
output_upload_unit="gB/s"
elif [ "$total_upload_bps" -gt 1048576 ]; then
elif [ $total_upload_bps -gt 1048576 ]; then
output_upload=$(echo "$total_upload_bps 1024" | awk '{printf "%.2f \n", $1/($2 * $2)}')
output_upload_unit="mB/s"
else
output_upload=$(echo "$total_upload_bps 1024" | awk '{printf "%.2f \n", $1/$2}')
output_upload_unit="kB/s"
fi

echo "↓ $output_download $output_download_unit • ↑ $output_upload $output_upload_unit"
echo "↓ $output_download$output_download_unit • ↑ $output_upload$output_upload_unit"
done
}
main