sbcsucks.sh

sbcsucks.sh

#!/usr/bin/env bash
# Check if SBC is stable and send a notification

OUTSIDE_HOST="${1:-8.8.8.8}"
PING_COUNT=15
PING_TIMEOUT=15
PING_INTERVAL=0.5
ASC_MBP="10.0.1.10"
STATUS="unknown"

while true; do
    PERCENT_LOSS=$(
        ping -W "$PING_TIMEOUT" -c "$PING_COUNT" -i "$PING_INTERVAL" \
        "$OUTSIDE_HOST" \
        | grep -o '[0-9]*% packet loss' | awk '{ print $1 }'
    )
    echo -en "$PERCENT_LOSS packet loss.\r"
    if [ "$PERCENT_LOSS" = "0%" ]; then
        if [ "$STATUS" = 'stable' ]; then
            continue
        fi
        STATUS=stable
        ssh -i ~/.ssh/asc-mbp shichao@"$ASC_MBP" "osascript -e 'display \
        notification \"Network is stable now.\" with title \"Reminder\"'"
    else
        if [ "$STATUS" = 'unstable' ]; then
            continue
        fi
        STATUS=unstable
        ssh -i ~/.ssh/asc-mbp shichao@"$ASC_MBP" "osascript -e 'display \
        notification \"Network has $PERCENT_LOSS packet loss.\" with title \"Reminder\"'"
    fi
    sleep 2
done