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https://github.com/YunoHost-Apps/linuxdash_ynh.git
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40 lines
852 B
Bash
Executable file
40 lines
852 B
Bash
Executable file
#!/bin/bash
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files=(/sys/class/net/*)
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pos=$(( ${#files[*]} - 1 ))
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last=${files[$pos]}
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json_output="{"
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for interface in "${files[@]}"
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do
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basename=$(basename "$interface")
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# find the number of bytes transfered for this interface
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out1=$(cat /sys/class/net/"$basename"/statistics/tx_bytes)
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# wait a second
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sleep 1
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# check same interface again
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out2=$(cat /sys/class/net/"$basename"/statistics/tx_bytes)
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# get the difference (transfer rate)
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out_bytes=$((out2 - out1))
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# convert transfer rate to KB
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out_kbytes=$((out_bytes / 1024))
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# convert transfer rate to KB
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json_output="$json_output \"$basename\": $out_kbytes"
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# if it is not the last line
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if [[ ! $interface == $last ]]
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then
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# add a comma to the line (JSON formatting)
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json_output="$json_output,"
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fi
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done
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# close the JSON object & print to screen
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echo "$json_output}"
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