sintax errors when run the first command

[Elema82]

m2-installer --source=composer --version=2.4.8 --base-url=magento-248.test --install-sample-data --db-user=magento --db-pass=magento --db-name=magento248
/usr/local/bin/m2-installer: line 450: syntax error in conditional expression: unexpected token (' /usr/local/bin/m2-installer: line 450: syntax error near @(t'
/usr/local/bin/m2-installer: line 450: ` if [[ "$INSTALL_SOURCE" != @(tar|composer) ]]; then'

[henkvalk]

Add shopt -s extglob on top of m2-installer like:

#!/bin/bash
shopt -s extglob