I’ve done it in quite a few different ways:

• Mount SD card as a removable storage device via USB
• Run an FTP server on my phone and transfer files over wifi
• Bluetooth file transfer

But these are all tedious because they’re all manual and they take too long.

Then I realised that ADB push and ADB shell are run from the command line/terminal, which means I can run a batch script. (A batch script is a text file with commands written that all run one after another in the command line)

Now all I need to do is click the file on my desktop and the files get updated within a fraction of a second on my phone.

So here’s an example version of my batch file that automatically updates a folder on my phone:

adb shell rm -r /sdcard/MyUpdateFolder

adb shell mkdir /sdcard/MyUpdateFolder

adb push C:/MyUpdateFolder /sdcard/MyUpdateFolder

‘rm -r’ delete the folder and everything in it.

‘mkdir’ creates a folder by that name.

‘push’ copies the folder contents from the first argument to the second argument.

Note for those running emulators on their computers: Add ‘-d’ after the word adb on each line to send the commands to a device and not an emulator.

All that’s left is to write it up in Notepad and save it as Filename.bat. After that, just double-click the file and the operation should run in a fraction of a second.

adb shell push c:/file.txt /sdcard/file.txt

I did some googling to no avail.

Then I remembered that pushing and pulling is not done in the shell, it’s just done with adb.

Thus, it should have been:

adb push c:/file.txt /sdcard/file.txt

Which succeeds. I know it’s a silly error to make, but I thought I’d share this in case anybody else uses the adb shell push instead of regular adb push and can’t figure out why permission is denied.