keep-header
Keep first line untouched by a command, passing it directly to stdout.
More information: https://github.com/eBay/tsv-utils#keep-header.
- Sort a file and keep the first line at the top:
keep-header path/to/file -- sort
- Output first line directly to
stdout, passing the remainder of the file through the specified command:
keep-header path/to/file -- command
- Read from
stdin, sorting all except the first line:
cat path/to/file | keep-header -- command
- Grep a file, keeping the first line regardless of the search pattern:
keep-header path/to/file -- grep pattern