Retrieve Shell Logs¶

Note

Beta

The MongoDB Shell (mongosh) is currently available as a Beta release. The product, its features, and the corresponding documentation may change during the Beta stage.

MongoDB Shell stores logs for each session in ndjson format using pino.

You can view or tail the logs for a MongoDB Shell session based on its log ID.

Note

The MongoDB Shell redacts credentials from the command history and the logs.

View MongoDB Shell Logs¶

1

Find your Log ID.¶

Example

MongoDB Shell displays the log ID each time you open the shell.

$ mongosh
Current Mongosh Log ID: c2961dbd6b73b052671d9df0
Connecting to: mongodb://127.0.0.1:27017
Using MongoDB: 4.2.8
Using Mongosh Beta: 0.8.2

2

View the log for the session.¶

MongoDB Shell saves the log for each session to your user's .mongodb/mongosh directory:

~/.mongodb/mongosh/<LogID>_log

Run the following command to view the log for a session:

cat ~/.mongodb/mongosh/<LogID>_log

Run the following command to tail the log for a session:

tail -f ~/.mongodb/mongosh/<LogID>_log

Tip

You can pipe the output to an installed ndjson pretty printer, such as pino-colada or pino-pretty to improve readability:

tail -f ~/.mongodb/mongosh/<LogID>_log | pino-colada

View MongoDB Shell Command History¶

MongoDB Shell saves a history of all commands you've run across sessions. When a new command is issued, it is added to the beginning of the history file.

Open the following file in a text editor to view the MongoDB Shell command history:

Operating System	Path to History File
macOS and Linux	`~/.mongodb/mongosh/.mongosh_repl_history`
Windows	`%UserProfile%/.mongodb/mongosh/.mongosh_repl_history`

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