Not working with macOS 11.4 about open-android-backup

[mrrfv]

I'm still on vacation, so my ability to help is very limited atm. Could you try changing #!/bin/bash to #!/bin/zsh in backup.sh and see if anything changes? IIRC zsh is the default shell in macOS, so it should be more up to date.

[panomitrius]

Getting similar errors..
Tried both with #!/bin/bash and #!/bin/zsh

When I run the script I get all this without typing anything:

bash ./backup.sh
./backup.sh: line 29: [: -v: unary operator expected
Please enable developer options on your device, connect it to your computer and set it to file transfer mode. Then, press Enter to continue.
./backup.sh: line 20: [: -v: unary operator expected
./backup.sh: line 29: [: -v: unary operator expected
If you have connected your device correctly, you should now see a message asking for access to your phone. Allow it, then press Enter to go to the last step.
./backup.sh: line 29: [: -v: unary operator expected
Tip: If this is not the first time you're using this script, you might not need to allow anything.
./backup.sh: line 20: [: -v: unary operator expected
List of devices attached
RF8MC0XCSQN	device

./backup.sh: line 29: [: -v: unary operator expected
Can you see your device in the list above, and does it say 'device' next to it? If not, quit this script (ctrl+c) and try again.
./backup.sh: line 84: [: -v: unary operator expected
./backup.sh: line 109: [: -v: unary operator expected
./backup.sh: line 118: [: -v: unary operator expected
./backup.sh: line 29: [: -v: unary operator expected
Linux Android Backup will install a companion app on your device, which will allow for contacts to be backed up and restored.
./backup.sh: line 29: [: -v: unary operator expected
The companion app is open-source, and you can see what it's doing under the hood on GitHub.
./backup.sh: line 29: [: -v: unary operator expected
Companion app already downloaded.
./backup.sh: line 29: [: -v: unary operator expected
Attempting to uninstall companion app.
./backup.sh: line 29: [: -v: unary operator expected
Installing companion app.
Performing Streamed Install
Success
./backup.sh: line 29: [: -v: unary operator expected
Granting required permissions to companion app.
./backup.sh: line 29: [: -v: unary operator expected
Cleaning up after previous backup/restore...
backup-tmp
./backup.sh: line 155: [: =: unary operator expected
./backup.sh: line 217: [: =: unary operator expected
./backup.sh: line 29: [: -v: unary operator expected
If this project helped you, please star the GitHub repository. It lets me know that there are people using this script and I should continue working on it.

Using MacOS 10.15.7 and

GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin19)
Copyright (C) 2007 Free Software Foundation, Inc.

zsh 5.7.1 (x86_64-apple-darwin19.0)

Regards!

[mrrfv]

Try running the script directly with zsh, i.e. zsh ./backup.sh - the first line in the log you posted shows that the script is being interpreted by bash.

[thetuxinator]

If you add #!/bin/zsh to the script and run it using bash ./backup.sh the script is again run by bash, adding the shebang only has an effect if you make the actual script (.sh file) executable and run ./backup.sh without any shell in prefix.

[giri256]

Can confirm. NOT WORKING on big sur 11.7, same thing as above, companion app won't open in phone and script exits

[mrrfv]

@kissge @thetuxinator @giri256 Could you try following the guide below and running the script with bash again? I feel like this error is definitely caused by Apple shipping an outdated version of Bash with macOS.

https://www.shell-tips.com/mac/upgrade-bash/

[mrrfv]

Reproduced on macOS 13 - you simply need to update bash with Homebrew to fix: brew install bash. I just updated the installation/usage instructions to make the script compatible with Macs. Thanks for reporting!