adb-device-selector

#!/bin/sh

adbpath=$(which adb)
if [ -f $adbpath ]; then
    alias adb='adbrun'
fi
adbs() { # adb / adb -s ...
    devices=$($adbpath devices | grep -Po '.+(?=\tdevice)')
    # make an array
    devices=( $devices )
    if [[ ${#devices[@]} < 2 ]]; then
        printf $adbpath
        return
    fi
    for i in "${!devices[@]}"; do
        printf "$i: ${devices[$i]}\n" 1>&2
        i=$(($i+1))
    done
    device=''
    while [[ $device == '' ]]; do
        printf 'select: ' 1>&2
        read
        device=${devices[$REPLY]}
    done
    printf "$adbpath -s $device"
}

adbrun() {
    if [[ $* == '' || $* == '--help' || $* == 'devices' ]]; then
        $adbpath $*
        return
    fi
    $(adbs) $*
}

lss() { # last screen shot
    count=$([ $1 ] && printf $1 || printf 1)
    adbs=$(adbs)
    while read -r file
    do
        $adbs pull "$file" ~/Pictures/Screenshots/
    done < <($adbs shell ls -1td /sdcard/Pictures/Screenshots/* | head -n $count)
}