prompt
A character or string indicating the start of an input field in a computer display
envar
A software environment variable
filename
The name of a file
devicefile
A device
directory
A directory
extension
A filename extension
headerfile
A header file (as for a programming language)
libraryfile
A library file
partition
A partition (as of a hard disk)
symlink
A symbolic link
Identifies the class of filename
Specifies the path of the filename
command
The name of an executable program or other software command
computeroutput
Data, generally text, displayed or presented by a computer
userinput
Data entered by the user
cmdsynopsis
A syntax summary for a software command
Specifies the character that should separate the command and its top-level arguments
Indicates the displayed length of the command; this information may be used to intelligently indent command synopses which extend beyond one line
norepeat
Can not be repeated.
repeat
Can be repeated.
Indicates whether or not repetition is possible.
opt
Formatted to indicate that it is optional.
plain
Formatted without indication.
req
Formatted to indicate that it is required.
Indicates optionality.
Indicates optionality.
arg
An argument in a cmdsynopsis
group
A group of elements in a cmdsynopsis
sbr
An explicit line break in a command synopsis
synopfragment
A portion of a cmdsynopsis broken out from the main body of the synopsis
synopfragmentref
A reference to a fragment of a command synopsis
@linkend on synopfragmentref must point to a synopfragment.