ptx (GNU coreutils) 8.25 Copyright (C) 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written by François Pinard.

Usage: ptx [OPTION]... [INPUT]... (without -G) or: 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: <http://www.gnu.org/software/coreutils/> Full documentation at: <http://www.gnu.org/software/coreutils/ptx> or available locally via: info '(coreutils) ptx invocation'