You can do adb shell pm list packages, and after reading through the list, do an adb shell pm path "com.yourpackage" to get the full path and do a simply adb pull.
Fact is: I want to automate this. I thought about a really simple bash script:
for apk in $(adb shell pm list packages | sed 's/package://g' | sort);
do
# If you just do an echo, IT WORKS
# echo $apk
# But here it doesn't work
adb shell pm path $apk
done
But that simply doesn't work. It seems that "$apk" becomes lost or something and nothing is shown in that snippet. I don't know if it's a subshell problem, or some peculiarity when using variables that got through an adb shell.
Should I create a script apks.sh just using pm list, for and such, push it to my device, run adb shell only once and execute apks.sh?