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63 lines
1.8 KiB
Bash
Executable File
63 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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# Function to detect the active network interface
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detect_interface() {
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for interface in /sys/class/net/*; do
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interface=$(basename "$interface")
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if [[ "$interface" != "lo" && -d "/sys/class/net/$interface" && "$(cat /sys/class/net/$interface/operstate)" == "up" ]]; then
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echo "$interface"
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return
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fi
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done
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}
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# Detect the active network interface
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interface=$(detect_interface)
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# If no active interface is found, exit
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if [ -z "$interface" ]; then
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echo "No active network interface found"
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exit 1
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fi
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# Paths to RX (received) and TX (transmitted) bytes
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rx_path="/sys/class/net/$interface/statistics/rx_bytes"
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tx_path="/sys/class/net/$interface/statistics/tx_bytes"
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# Read the current RX and TX bytes
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rx_now=$(cat $rx_path 2>/dev/null)
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tx_now=$(cat $tx_path 2>/dev/null)
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# Read the last recorded RX and TX bytes from a temp file
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state_file="/tmp/network_monitor_$interface"
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if [ -f "$state_file" ]; then
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read last_rx last_tx last_time < "$state_file"
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else
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last_rx=$rx_now
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last_tx=$tx_now
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last_time=$(date +%s)
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fi
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# Save current RX and TX bytes for the next check
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current_time=$(date +%s)
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echo "$rx_now $tx_now $current_time" > "$state_file"
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# Calculate time difference
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time_diff=$((current_time - last_time))
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# Calculate download and upload speeds in bytes per second
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if (( time_diff > 0 )); then
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rx_rate=$(( (rx_now - last_rx) / time_diff ))
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tx_rate=$(( (tx_now - last_tx) / time_diff ))
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else
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rx_rate=0
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tx_rate=0
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fi
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# Convert speeds to human-readable format
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rx_rate_human=$(numfmt --to=iec --suffix=B/s $rx_rate)
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tx_rate_human=$(numfmt --to=iec --suffix=B/s $tx_rate)
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# Output the result with fixed width
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printf " DL: %-8s UL: %-8s\n" "$rx_rate_human" "$tx_rate_human"
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echo "#50FA7B" |