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Update cheatsheets

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ivuorinen
2025-04-02 00:19:10 +00:00
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commit 6c2bf9ee1e
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tldr/rawtopgm
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@@ -18,20 +18,20 @@ source: https://github.com/tldr-pages/tldr.git
- Convert a raw greyscale image in which the pixels come bottom-first instead of top-first to a PGM image:
`rawtopgm {{width}} {{height}} -bottomfirst {{path/to/image.raw}} > {{path/to/output.pgm}}`
`rawtopgm {{width}} {{height}} {{[-bt|-bottomfirst]}} {{path/to/image.raw}} > {{path/to/output.pgm}}`
- Ignore the first `n` bytes of the specified file:
`rawtopgm {{width}} {{height}} -headerskip {{n}} {{path/to/image.raw}} > {{path/to/output.pgm}}`
`rawtopgm {{width}} {{height}} {{[-h|-headerskip]}} {{n}} {{path/to/image.raw}} > {{path/to/output.pgm}}`
- Ignore the last m bytes of each row in the specified file:
`rawtopgm {{width}} {{height}} -rowskip {{m}} {{path/to/image.raw}} > {{path/to/output.pgm}}`
`rawtopgm {{width}} {{height}} {{[-r|-rowskip]}} {{m}} {{path/to/image.raw}} > {{path/to/output.pgm}}`
- Specify the maxval for the grey values in the input to be equal to `n`:
`rawtopgm {{width}} {{height}} -maxval {{n}} {{path/to/image.raw}} > {{path/to/output.pgm}}`
`rawtopgm {{width}} {{height}} {{[-m|-maxval]}} {{n}} {{path/to/image.raw}} > {{path/to/output.pgm}}`
- Specify the number of bytes that represent each sample in the input and that the byte-sequence is to be interpreted as little-endian:
`rawtopgm {{width}} {{height}} -bpp {{1|2}} -littleendian {{path/to/image.raw}} > {{path/to/output.pgm}}`
`rawtopgm {{width}} {{height}} -bpp {{1|2}} {{[-l|-littleendian]}} {{path/to/image.raw}} > {{path/to/output.pgm}}`