produce a permuted index of file contents


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]


ptx [ OPTION ]...[ INPUT ]... (without -G)
ptx -G [ OPTION ]...[ INPUT [ OUTPUT ]]


Output a permuted index, including context, of the words in the input files.

With no FILE, or when FILE is -, read standard input.

Mandatory arguments to long options are mandatory for short options too.

-A , --auto -reference output automatically generated references

-G , --traditional behave more like System V 'ptx'

-F , --flag -truncation = STRING use STRING for flagging line truncations. The default is '/'

-M , --macro -name = STRING macro name to use instead of 'xx'

-O , --format = roff generate output as roff directives

-R , --right -side -refs put references at right, not counted in -w

-S , --sentence -regexp = REGEXP for end of lines or end of sentences

-T , --format = tex generate output as TeX directives

-W , --word -regexp = REGEXP use REGEXP to match each keyword

-b , --break -file = FILE word break characters in this FILE

-f , --ignore -case fold lower case to upper case for sorting

-g , --gap -size = NUMBER gap size in columns between output fields

-i , --ignore -file = FILE read ignore word list from FILE

-o , --only -file = FILE read only word list from this FILE

-r , --references first field of each line is a reference -t , --typeset -mode -not implemented -

-w , --width = NUMBER output width in columns, reference excluded

--help display this help and exit

--version output version information and exit


GNU coreutils online help: <>
Report any translation bugs to <>


Copyright 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.


Full documentation <> or available locally via: info ptx invocation


Written by F. Pinard.

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