How do I backup a WSL instanceto a `*.tar.gz` file?

Windows WSL
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2

Step 1

Find the name of your instance:

wsl -l -v

learn.microsoft.com/en-us/windows/wsl/basic-commands#list-installed-linux-distributions

Step 2

wsl --export <instance name> - | gzip > $(date '+%Y-%m-%d-%H-%M').tar.gz

E.g.:

wsl --export Ubuntu-22.04 - | gzip > $(date '+%Y-%m-%d-%H-%M').tar.gz