Shell Programming and Scripting

net0:up,Tx=475198bps,Rx=31009bps net1:up,Tx=39596bps,Rx=35678bps

net0 Tx is higher then the threshold

TX=`sed 's/:up//g' test.txt | sed 's/bps//g' | awk -F',' '{print$2}' | cut -c4-`
RX=`sed 's/:up//g' test.txt | sed 's/bps//g' | awk -F',' '{print$3}' | cut -c4-`

for tx in $TX
do
if [[ $tx -gt 9 ]]; then
INT=`grep $tx test.txt | awk -F',' '{print$1}' | cut -f1 -d":"`
echo -n "$INT tx is higher then usual "
fi
done

for rx in $RX
do
if [[ $rx -ge 0 ]]; then
INT=`grep $rx test.txt | awk -F',' '{print$1}' | cut -f1 -d":"`
echo -n "$INT rx is higher then usual "
fi
done

The following interfaces has high Tx usage: net0

The following interfaces has both high Tx/Rx usage: net0 net1

read -a intf < test.txt
for ((i=0; i<${#intf[@]}; i++))
do
  IFS=',:=' read ifname status x tx x rx <<< "${intf[i]}"
  echo "This is interface ${ifname} with status ${status} and rx ${rx%bps} and tx ${tx%bps}"
done

sed 's/net/\nnet/g' test.txt | awk '
/^net.*:.*Tx *=.*Rx *=/ {
   tx=$0;
   sub(".*Tx= *", "", tx);
   sub("[^0-9].*", "", tx);
   rx=$0;
   sub(".*Rx= *", "", rx);
   sub("[^0-9].*", "", rx);
   net=$0;
   sub(" *:.*", "", net);
   if (tx > tx_max) txs=txs net " ";
   if (rx > rx_max) rxs=rxs net " ";
   if (rx > rx_max && tx > tx_max) rxtx=rxtx net " ";
}
END {
      print "The following interfaces have high Tx usage:", txs
      print "The following interfaces have high Rx usage:", rxs
      print "The following interfaces have both high Tx/Rx usage:", rxtx
}
' tx_max=9 rx_max=0

read -a intf < test.txt
for i in "${intf[@]}"
do
  IFS=',:=' read ifname status _ tx _ rx <<< "$i"
  # strip from the end up to a non-digit: % or bps or .0 or .0%
  echo "This is interface ${ifname} with status ${status} and rx ${rx%%[!0-9]*} and tx ${tx%%[!0-9]*}"
done