2.2.1 • Published 3 years ago
levelscan v2.2.1
node-levelscan
LevelDB command line database scan utility.
Install levelscan globally.
$ npm install -g levelscan
Installing globally exposes the levelscan command.
To scan the first 100 records from the database with all the default options, simply provide the path to the database.
$ levelscan path/to/my-leveldb
Streaming from db: path/to/my-leveldb
Read stream options:
{
"limit": 100,
"keys": true,
"reverse": false,
"values": true
}
2016-08-20T15:28:00.000Z : {"timestamp":"2016-08-20T15:28:00.000Z","sample":4,"upper":4,"lower":4}
2016-08-20T15:29:00.000Z : {"timestamp":"2016-08-20T15:29:00.000Z","sample":4,"upper":4,"lower":4}
... SNIP ...
2016-08-20T17:06:00.000Z : {"timestamp":"2016-08-20T17:06:00.000Z","sample":4,"upper":4,"lower":4}
2016-08-20T17:07:00.000Z : {"timestamp":"2016-08-20T17:07:00.000Z","sample":4,"upper":4,"lower":4}
Read 0 records in 16.712 ms
Database closed.
Display help to see all options.
$ levelscan --help
Usage: levelscan [options] <db-path>
Options:
-h, --help output usage information
-e, --key-encoding <encoding> Encoding for keys.
-E, --value-encoding <encoding> Encoding for values.
-j, --json Format records as JSON.
--gt <key> Exclusive lower bound for the stream.
--gte <key> Inclusive lower bound for the stream.
--lt <key> Exclusive upper bound for the stream.
--lte <key> Inclusive upper bound for the stream.
-l, --limit <limit> Maximum number of records to stream (default 100).
-L, --unlimited Stream all records from the database (no limit).
-r, --reverse Stream in descending instead of ascending order.
-q, --quiet Only output records
-x, --exclude-keys Exclude keys from the stream.
-X, --exclude-values Exclude values from the stream.
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