Created
September 8, 2017 07:43
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nicstat.sh
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| #!/bin/bash | |
| # | |
| # script for network traffic statistics | |
| # | |
| # 1.0.0 - 2017.09.08 | |
| # | |
| # Copyleft by typeon@gmail.com | |
| # | |
| if [ "x$1" != "x" ]; then | |
| # | |
| # 숫자가 아니면 skip하기로. | |
| # | |
| interval_second=$1 | |
| else | |
| interval_second=1 | |
| fi | |
| declare -A prev_value | |
| declare -A curr_value | |
| while true; do | |
| # cat /proc/net/dev | |
| # | |
| # $1, $2, $3, $4, $10, $11, $12 | |
| # | |
| # $1 -> ~ Inter-, face | |
| # | |
| eval $(awk ' | |
| BEGIN { | |
| array_no = 0 | |
| } | |
| $1 !~ /Inter|face/ { | |
| printf "curr_value[%d,0]=\"%s\"\n", array_no, $1 | |
| printf "curr_value[%d,1]=%s\n", array_no, $2 | |
| printf "curr_value[%d,2]=%s\n", array_no, $3 | |
| printf "curr_value[%d,3]=%s\n", array_no, $4 | |
| printf "curr_value[%d,4]=%s\n", array_no, $10 | |
| printf "curr_value[%d,5]=%s\n", array_no, $11 | |
| printf "curr_value[%d,6]=%s\n", array_no, $12 | |
| array_no++ | |
| } | |
| END { | |
| printf "array_cnt=%d\n", array_no - 1 | |
| } | |
| ' /proc/net/dev) | |
| printf "Interface RX_KBytes/s RX_KPackets/s RX_Errs/s TX_KBytes/s TX_KPackets/s TX_Errs/s\n" | |
| declare -a res_value | |
| for ((i = 0; i <= $array_cnt; i++)); do | |
| res_value[0]=${curr_value[$i,0]} | |
| if [ "x${prev_value[$i,1]}" == "x" ]; then | |
| prev_value[$i,1]=0 | |
| prev_value[$i,2]=0 | |
| prev_value[$i,3]=0 | |
| prev_value[$i,4]=0 | |
| prev_value[$i,5]=0 | |
| prev_value[$i,6]=0 | |
| fi | |
| # 초당 속도 계산. | |
| # | |
| res_value[1]=$(echo "scale = 4; (${curr_value[$i,1]} - ${prev_value[$i,1]}) / ${interval_second} / 1024" | bc) | |
| res_value[2]=$(echo "scale = 4; (${curr_value[$i,2]} - ${prev_value[$i,2]}) / ${interval_second} / 1024" | bc) | |
| res_value[3]=$(echo "scale = 4; (${curr_value[$i,3]} - ${prev_value[$i,3]}) / ${interval_second}" | bc) | |
| res_value[4]=$(echo "scale = 4; (${curr_value[$i,4]} - ${prev_value[$i,4]}) / ${interval_second} / 1024" | bc) | |
| res_value[5]=$(echo "scale = 4; (${curr_value[$i,5]} - ${prev_value[$i,5]}) / ${interval_second} / 1024" | bc) | |
| res_value[6]=$(echo "scale = 4; (${curr_value[$i,6]} - ${prev_value[$i,6]}) / ${interval_second}" | bc) | |
| printf "%s\t%'13.2f %'13.2f%'10.2f %'13.2f %'13.2f %'9.2f\n" \ | |
| "${res_value[0]}" "${res_value[1]}" "${res_value[2]}" "${res_value[3]}" \ | |
| "${res_value[4]}" "${res_value[5]}" "${res_value[6]}" | |
| for ((j=0; j <= 6; j++)); do | |
| prev_value[$i,$j]=${curr_value[$i,$j]} | |
| done | |
| done | |
| sleep $interval_second | |
| done | |
| exit 0 |
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