colorized pings

gistfile1.txt

#!/usr/bin/env bash
#
# TODO:
#   - allow setting custom green/yellow threshold via CLI options
#   - allow profile selection via CLI options
#   - fix issue with command argument position (must follow hostname)
#

## set defauts

DATEFORMAT="%Y-%m-%d %H:%M:%S"
PING_TIME_OK=40
PING_TIME_WARN=70

## check for commandline options

while [[ $# -gt 1 ]] ; do
  key="$1"
  case $key in
    -p|--profile)
      PROFILE="$2"
      shift # past argument
      ;;
    *)
      PING_HOST=$key # assume any other argument is the hostname
      ;;
  esac
  shift
done

# use google DNS if no other host is given
if [[ "$PING_HOST" = "" ]]; then
  echo "host: '$PING_HOST'"
  PING_HOST="8.8.8.8"
fi

case $PROFILE in
  voip)
    PING_TIME_OK=40
    PING_TIME_WARN=70
    ;;
  internet)
    PING_TIME_OK=80
    PING_TIME_WARN=120
    ;;
esac

function color_ping {
  TARGET=$1
  echo "host: $TARGET, ok: <= $PING_TIME_OK, warn: <= $PING_TIME_WARN"
  ping $TARGET \
  | awk -v host=$TARGET '{now="date -j ${DATEFORMAT}"; now|getline date; close(now); print date " - " host " - " $0}' \
  | awk -v ping_ok=$PING_TIME_OK -v ping_warn=$PING_TIME_WARN -F'[ =]' \
    '
    function green(str)   {printf("%s%s%s", "\033[1;32m", str, "\033[0m")}
    function yellow(str)  {printf("%s%s%s", "\033[1;33m", str, "\033[0m")}
    function red(str)     {printf("%s%s%s", "\033[1;31m", str, "\033[0m")}
    function timeout(str) {printf("%s%s%s", "\033[1;41m", str, "\033[0m")}
    {
    ping_time = $20;
    if ($0 ~ /PING/)
      print $0;
    else if ($0 ~ /timeout/)
      print timeout($0);
    else if (ping_time <= ping_ok)
      print green($0);
    else if (ping_time <= ping_warn)
      print yellow($0);
    else if (ping_time > ping_warn)
      print red($0);
    else
      print $0;
    }
    '
}

color_ping $PING_HOST;

example uses...

$ colorping
$ colorping www.cnn.com
$ colorping www.cnn.com -p voip
$ colorping www.cnn.com -p internet

-p|--profile = use a predetermined profile for ping reply thresholds