Users Guide

30 CCTK Options
Case-Sensitivity
• Command line options, pre-defined and user-defined arguments,
and filenames given as arguments are all case-sensitive.
• Unless specified otherwise, enter all commands, options, arguments,
and command line switches in lowercase letters.
Command Line Option Delimiters
Table 4-2 lists some examples of valid and invalid CCTK command lines.
optionX Indicates the generic multi-character designation for a utility name,
where you can use X to distinguish multiple options used in the same
command line instance.
argX Indicates the generic designation for an argument, where you can use X
to distinguish multiple arguments used in the same command line
instance.
[mandatory
option]
Indicates the generic designation for a mandatory argument.
<string> Indicates the generic designation for a string.
<filename> Indicates the generic designation for a filename.
[ ] Indicates a component of the command line. Enter only the
information within the brackets and exclude the brackets.
... Indicates that the previous argument can be repeated several times in
a command. Enter only the information within the ellipses and
exclude the ellipses.
| Separates mutually exclusive choices in a syntax line. For example:
numlock: Turns the keyboard number lock on or
off.
Arguments: on | off
Enter only one choice: --numlock=on, --numlock=
off
Table 4-1. Command Line Syntax
(continued)
Element Description