A shell script to take a screen shot of the android device, resize it and copy to clipboard

adb-screenshot.sh

#! /bin/bash

## This script is for taking a screen shot of an Android device.
## If possible, it tries to resize the image file and then copy to the clipboard.
##
## Note the script generates screenshot_yyyyMMddHHmmss.png and screenshot_yyyyMMddHHmmss_s.png
## under /sdcard on the device (you can specify another location with '-t' option)
## and copies it to the current working directory.
## 
## The script passes unrecognized arguments to adb command, which means you can specify "-e" or "-d"
## to select which device to take a screenshot of.
## From GIST by hkurokawa GIST adb-screenshot.sh

if [ -z $(which adb) ]; then
  echo "Error. adb must be installed and in PATH." 1>&2
  exit 1
fi

usage_exit() {
    echo "Usage: $0 [-t target_dir] [arguments to adb]..."
    exit 1
}

check_ret() {
    if [ $? -ne 0 ]; then
        echo "An error occurred. Exit." 1>&2
        exit 1
    fi
}

file=screenshot_$(date "+%Y%m%d%H%M%S").png
dir=/sdcard

case $1 in
    -t) dir=$2
        shift 2
        ;;
    -h) usage_exit
        ;;
esac

remote=${dir}/${file}
adb $* shell screencap -p ${remote} &&
adb $* pull ${remote} &&
adb $* shell rm ${remote} && printf "Copied ${file}\n"