capture-sdcard.sh: 8: Syntax error: "(" unexpected

[GuidoBartoli]

Launching the script as reported in the README gives the following error:

$ ./capture-sdcard.sh /dev/mmcblk0 raspberry.img
./capture-sdcard.sh: 8: Syntax error: "(" unexpected

The device is correct (I checked with fdisk -l) and I installed the required git and xz-utils packages. My system is Linux Mint 21.1 (Cinnamon Edition).

Thanks

[phatpaul]

https://unix.stackexchange.com/questions/45781/shell-script-fails-syntax-error-unexpected

TLDR:
run it like this until the author fixes the shebang:

bash ./capture-sdcard.sh /dev/mmcblk0 raspberry.img