Using adb to create screen recordings of all plugged in Android devices

adbrecord.sh

#!/bin/bash

# TODO:
# - add option to change the time limit
# - add option to change the output folder
# - add option to delete recordings on device once they have been pulled
# - figure out how to kill script when everything is done

# how many seconds to record for
LIMIT=5
# where to send the file when it's done
FOLDER=~/Downloads/


timestamp=$(date +%Y-%m-%d-%H:%M:%S)

record () {
  local d=$1
  local f="/sdcard/${d}-${timestamp}.mp4"
  echo "recording file ${f} for ${LIMIT} seconds"
  (adb -s "$d" shell "screenrecord --time-limit ${LIMIT} ${f}")
  wait
  (adb -s "$d" pull "$f" "$FOLDER")
  wait
  open "$FOLDER"
}

adb devices | while read -r line
do
    if [ ! "$line" = "" ] && [ "$(echo "$line" | awk '{print $2}')" = "device" ]
    then
        device=$(echo "$line" | awk '{print $1}')
        record "$device" &
    fi
done