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cheatsheet-tldr/tldr/sponge
2025-04-23 00:19:06 +00:00

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# sponge
> Soak up the input before writing the output file.
> More information: <https://manned.org/sponge>.
- Append file content to the source file:
`cat {{path/to/file}} | sponge -a {{path/to/file}}`
- Remove all lines starting with # in a file:
`grep {{[-v|--invert-match]}} '^{{#}}' {{path/to/file}} | sponge {{path/to/file}}`