Context

Shellchecks the file scripts/snapshot_alpha.sh. I also simplified the script a bit by removing an redundant tmp dir.

Manually testing the MR

A simple way of testing is running the script on master and running the script on my branch -- the result should be the same.

Document the interface of any function added or modified (see the coding guidelines)
Document any change to the user interface, including configuration parameters (see node configuration)
Provide automatic testing (see the testing guide).
For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
Select suitable reviewers using the Reviewers field below.
Select as Assignee the next person who should take action on that MR