I want to pause/sleep the elif part but keep the other elif parts working . I don't want the whole script to sleep if 1 sensor goes off.


while true;  do


    if [ "$scan" = "$valid" ]; then
        echo "Good value"

        echo "Bad value"


    sleep 5


So if 1 sensor is triggered it waits for a couple seconds before sending a pushbullet alert for that 1 sensor , but it doesn't cause other sensors to stop sending alerts if the 1 sensor is delayed.

I don't want to be informed every time a sensor goes off I want their to be a delay so it doesn't keep sending me alerts.

  • Why isn't it required? – securitytestman Dec 28 '18 at 11:31
  • 1
    @securitytestman Regarding the '..doesn't sleep the other elif statement..' part from your question. The elif blocks are read sequentially, so there is no parallel operation happening there. – Haxiel Dec 28 '18 at 11:37
  • Haxiel does this mean if I want them to act as different parts of the script I will need to use something other than elif? – securitytestman Dec 28 '18 at 11:59
  • @securitytestman Please use the '@username' notation when you reply, so that I can get a notification for your comment. As for your question, the answer is yes. If you want to run different blocks of code in parallel, you'll need more advanced tools. – Haxiel Dec 28 '18 at 12:38
  • Is it intentional that echo "Good Read"; echo "Your code is " $scan is only executed for the door bell? – nohillside Dec 28 '18 at 14:09
#again you must use bash... 
valid[0]=160650648 ; valid[1]=163686025
valid[2]=120806542 ; valid[3]=37206841

while sleep 5;  do
    if [ "$scan" == "$oldscan" ]; then
    #if i is minor than 10 restart loop...
    #So a alert will not be displayed again after 50 seconds...
        if [ "$i" -lt "10" ]; then

    case $scan in 
               echo "Good Read"
               echo "Your code is " $scan
               ./buzzer.sh &
               omxplayer -o local sleighbells.mp3
               curl -u "code": https://api.pushbullet.com/v2/pushes -d type=note -d title="Alert" -d body="DoorBell" &
                curl -u "code": https://api.pushbullet.com/v2/pushes -d type=note -d title="Alert" -d body="front sensor" &
                curl -u "code": https://api.pushbullet.com/v2/pushes -d type=note -d title="Alert" -d body="Back door sensor" &
                curl -u "code": https://api.pushbullet.com/v2/pushes -d type=note -d title="Alert" -d body="Second sensor" &
               echo "BAD READ:  your code and the valid don't match"
               echo "Your correct valid code should be " $scan

    #sleep 5 not needed sleep 5 is in while condition 


EDIT: see comments..

  • Ops missing a quote... Try again. – Luciano Andress Martini Dec 28 '18 at 12:03
  • A important question? Do you want to make all the conditions to be hit? Even if one of them are true? – Luciano Andress Martini Dec 28 '18 at 12:05
  • Well I want their to be a delay if true 2 is a sensor and I keep moving it goes off every 5 seconds which is very annoying. I want their to be a delay before sending me an alert. – securitytestman Dec 28 '18 at 12:06
  • You want to check all the conditions again after 5 seconds? All the conditions must be checked even if one of them are true? what is your native language? I am a brazilian speaker (brazil native language is portuguese) maybe I can try to understand you in your other language if it is derivated from latin. – Luciano Andress Martini Dec 28 '18 at 12:08
  • So basically the script is looking out for a signal for a motion sensor. If I was to move near the sensor it will keep sending alerts every 5 seconds I only want alerts to send out every minute or so but still let me know if any other sensors are triggered within that minute (they also need a delay). Does that sense? – securitytestman Dec 28 '18 at 12:13

Am I correct when paraphrasing "The script should independently deliver the scans read but block each scan after occurrence for one minute"?

Your script has some opportunities to simplify / optimize, and I'm assuming you're using bash (hoppla - bash tag edited away...?) despite the shebang indicating other... So while implementing the one minute pause for the individual scans, I tried also to reap the opportunities (using echo for the commands not installed on my system - remove if happy with the operation). Try this and feel free to adapt:

VALID=(160650648 163686025 120806542 37206841)                          # define valid scans
BODY=(DoorBell "front sensor" "Back door sensor" "Second sensor")       # define body tests

while true
  do    scan=$(./RFSniffer)

        for IX in "${!VALID[@]}" "${#VALID[@]}"                         # 0 - 3 elements, and 4 to identify bad reads
          do    if [ "${scan:-FALSE}" = "${VALID[IX]}" ]                # compare 4 elements, the 5. tries to compare to "" empty
                  then  echo "Good Read"
                        echo "Your code is " $scan

                        if (( $SECONDS > ${LAST[IX]} + 60 ))            # test for one minute pause
                          then  if [ "$IX" = 0 ]                        # do this just for the "door bell"
                                  then  echo ./buzzer.sh
                                        echo omxplayer -o local sleighbells.mp3

                                echo curl -u "code": https://api.pushbullet.com/v2/pushes -d type=note -d title="Alert" -d body="${BODY[IX]}" # &

                                LAST[IX]=$SECONDS                       # keep last scan occurrence
                          else  echo "pausing "                         

                        break                                           # if good read - break out of the for loop to avoid the bad read msg

                if [ "$IX" = "${#VALID[@]}" ]                           # the fifth loop means no valid scan found

                  then  echo "BAD READ:  your code $scan and the valid ones don't match"
                        echo "Your correct valid code should be one of ${VALID[@]}"

        sleep 5
  • Well if sensor 1 was set off I would like it to only be able to send 1 alert within a period of a minute or so, but not stop the those other sensors from sending alerts whilst sensor 1 is paused from sending alerts. – securitytestman Dec 28 '18 at 15:49
  • This is exactly what I was targeting at with above. Did you agree to my paraphrase? Did you try the code? – RudiC Dec 28 '18 at 15:52
  • This doesn't work unfortunately doesn't pause, it also doesn't send the alert through pushbullet either. – securitytestman Dec 30 '18 at 18:32
  • "Doesn't work" doesn't really help identifying errors. It worked for me when I did a read scan in lieu of the RFsniffer; it echoed the relevant commands once, and then paused for a minute, per valid scan. Did you remove the echo from the pushbullet command? – RudiC Dec 31 '18 at 10:34

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