!/bin/bash

MAX_TO_UNINSTALL=10;

function list_installed {
adb shell pm list packages | grep “$1” | sed s/package://g | tr -d ‘\r’
}

function count_installed {
echo $1 | wc -w
}

function uninstall {
PACKAGES=$(list_installed$1)
INSTALLED=$(echo$PACKAGES | wc -w)

echo Found $INSTALLED matching apps:
list_installed $1 | sed "s/^/    /"

echo ""
if [ $INSTALLED -gt $MAX_TO_UNINSTALL ]; then
    echo "For security reasons cannot uninstall more than $MAX_TO_UNINSTALL apps"
    exit
elif [ $INSTALLED -eq 0 ]; then
    echo "Did not uninstall any apps"
    exit
fi

echo "Are you sure you want to uninstall these? (y/n)"
read ANSWER
echo ""
if [ "$ANSWER" = "y" ]; then
    echo $PACKAGES | xargs -n 1 adb uninstall
else
    echo "Did not uninstall anything"
fi

}

function check_devices {
CONNECTED=$(adb devices | wc -l)

if [ $CONNECTED -le 2 ]; then
    echo "No devices connected"
    echo "Did not uninstall any apps"
    exit
elif [ $CONNECTED -gt 3 ]; then
    echo "Too many devices connected ($(($CONNECTED-2)))"
    echo "Did not uninstall any apps"
    exit
fi

}

function check_input {
if [ -z “$1” ]; then
echo “You need to specify a package to uninstall”
exit
fi
}

echo “”
check_input $1 check_devices uninstall$1