If an option is not specified at all, a default value is used in the case of Without any argument uses the default argument. Some options also have default arguments, i.e., just specifying the option If more than one argument needs to be given toĪn option, they should be similarly separated from each other. The argument must be a separate command-line argument, i.e., separated by Multiple in some cases) after the option name. Most options, except for boolean flags, expect an argument (or
All GROMACS commands require an option before any arguments (i.e., allĬommand-line arguments need to be preceded by an argument starting with aĭash, and values not starting with a dash are arguments to the preceding
