tldr/pages/linux/ptx.md

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# ptx
> Generate a permuted index of words from one or more text files.
> More information: <https://www.gnu.org/software/coreutils/manual/html_node/ptx-invocation.html>.
- Generate a permuted index where the first field of each line is an index reference:
`ptx --references {{path/to/file}}`
- Generate a permuted index with automatically generated index references:
`ptx --auto-reference {{path/to/file}}`
- Generate a permuted index with a fixed width:
`ptx --width={{width_in_columns}} {{path/to/file}}`
- Generate a permuted index with a list of filtered words:
`ptx --only-file={{path/to/filter}} {{path/to/file}}`
- Generate a permuted index with SYSV-style behaviors:
`ptx --traditional {{path/to/file}}`