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cheatsheet-tldr/tldr/gnomon
2025-12-02 00:21:15 +00:00

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# gnomon
> Utility to annotate console logging statements with timestamps and find slow processes.
> More information: <https://github.com/paypal/gnomon#options>.
- Use UNIX (or DOS) pipes to pipe `stdout` of any command through gnomon:
`{{npm test}} | gnomon`
- Show number of seconds since the start of the process:
`{{npm test}} | gnomon {{[-t|--type]}} elapsed-total`
- Show an absolute timestamp in UTC:
`{{npm test}} | gnomon {{[-t|--type]}} absolute`
- Use a high threshold of 0.5 seconds, exceeding which the timestamp will be colored bright red:
`{{npm test}} | gnomon {{[-h|--high]}} 0.5`
- Use a medium threshold of 0.2 seconds, exceeding which the timestamp will be colored bright yellow:
`{{npm test}} | gnomon {{[-m|--medium]}} 0.2`