nimbus-eth2/docs/the_nimbus_book/src/database-backup.md

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# Back up your database
The best way to do this is to use `.backup` sqlite command:
1. Navigate to either `build/data/shared_mainnet_0/db/` (if you're running Holesky: `shared_holesky_0`) or the directory you supplied to the `--data-dir` argument when you launched Nimbus.
2. Run the following command:
```
sqlite3 nbc.sqlite3 ".backup 'backup_nbc.sqlite3'"
```
Make sure to correctly type both single and double quotes, as written above.