mirror of https://github.com/CrimsonTome/tldr.git
21 lines
634 B
Markdown
21 lines
634 B
Markdown
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# keep-header
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> Keep first line untouched by a command, passing it directly to stdout.
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> More information: <https://github.com/eBay/tsv-utils#keep-header>.
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- Sort a file and keep the first line at the top:
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`keep-header {{path/to/file}} -- sort`
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- Output first line directly to stdout, passing the remainder of the file through the specified command:
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`keep-header {{path/to/file}} -- {{command}}`
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- Read from stdin, sorting all except the first line:
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`cat {{path/to/file}} | keep-header -- {{command}}`
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- Grep a file, keeping the first line regardless of the search pattern:
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`keep-header {{path/to/file}} -- grep {{pattern}}`
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