Linux in a Nutshell, 6th Edition

Name

ptx

Synopsis

ptx [options] [infiles]
ptx -G [options] [infile [outfile]]

Create a permuted index, including context, from the contents of the specified input files. If the input files are omitted, or are -, read from standard input. The results are written to standard output. In the second form, with the -G option, ptx behaves like the System V version rather than the GNU version; you specify only one input file, and you can also specify an output file. Because they show words in context, permuted indexes are often used in such places as bibliographic or medical databases, thesauruses, or websites to aid in locating entries of interest.

Options

-A, --auto-reference

Produce automatically generated references, consisting of the filename and line number, separated by a colon, and print them at the beginning of each line.

-b file, --break-file=file

The specified file contains word-break characters--characters that are not part of words, but separate them.

-f, --ignore-case

Ignore case when sorting, by folding lowercase into uppercase.

-F string, --flag-truncation=string

Use string to flag line truncations.

-g num, --gap-size=num

Specify the number of spaces between output columns.

-G, --traditional

Behave like System V ptx; don’t use the GNU extensions. If an output file is specified, any existing contents are lost.

--help

Display a help message and exit.

-i file, --ignore-file=file

Read the list of words that are not to be used as keywords in the concordance output from file.

-M string, --macro-name ...