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Add List RDS Snapshots With Matching Identifier Prefix as an AWS TIL

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jbranchaud
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# List RDS Snapshots With Matching Identifier Prefix
I'm working on a script that manually creates a snapshot which it will then
restore to a temporary database that I can scrub and dump. The snapshots that
this script takes are _manual_ and they are named with identifiers that have a
defining prefix (`dev-snapshot-`). Besides the few snapshots created by this
script, there are tons of automated snapshots that RDS creates for
backup/recovery purposes.
I want to list any snapshots that have been created by the script. I can do
this with the `describe-db-snapshots` command and some filters.
```bash
$ aws rds describe-db-snapshots \
--snapshot-type manual \
--query "DBSnapshots[?starts_with(DBSnapshotIdentifier, 'dev-snapshot-')].DBSnapshotIdentifier" \
--no-cli-pager
[
"dev-snapshot-20250327-155355"
]
```
There are two key pieces. The `--snapshot-type manual` filter excludes all
those automated snapshots. The `--query` both filters to any snapshots whose
identifier `?starts_with` the prefix `dev-snapshot-` and then refines the
output to just the `DBSnapshotIdentifier` instead of the entire JSON object.
[source](https://docs.aws.amazon.com/cli/latest/reference/rds/describe-db-snapshots.html)