capture screenshot with adb && pull from pc

android-screenshot.sh

#!/usr/bin/env bash
set -ue
set -o pipefail
temp_basename="screenshot-$(date '+%Y%m%d-%H%M%S-%N').png"
temp_remote="/sdcard/$temp_basename"
temp_local="/tmp/$temp_basename"

(
  adb shell screencap -p "$temp_remote"
  adb pull "$temp_remote" "$temp_local"
  adb shell rm "$temp_remote"
  echo "screenshot saved at $temp_local"
) >&2

if [[ ! -t 1 ]]; then
  exec cat "$temp_local"
else
  echo "FYI: this script can be used to pipe the new screenshot into a file"
  echo "    e.g. $0 > screen.png"
fi