Users can edit the xml files directly to change the variable
values. However, modification of variables in the xml scripts is best
done using the xmlchange script in the $CASEROOT
directory since it performs variable error checking as part of
changing values in the xml files. To invoke the xmlchange script:
xmlchange -file [name] -id [name] -val [name] -help -silent -verbose -warn -append |
-fileThe xml file to be edited.
-idThe xml variable name to be changed.
-valThe intended value of the variable associated with the -id argument.
Note: If you want a single quotation mark ("'", also called an apostrophe) to appear in the string provided by the -val option, you must specify it as "'".
-silentTurns on silent mode. Only fatal messages will be issued.
-verboseEchoes all settings made by configure.
-helpPrint usage info to STDOUT.
-warnWarn and abort if you would be overwriting a current value in the field. This is useful so you make sure you aren't overwriting a field that is currently set.
-appendAppend the given value to the end of the current value of the field. Sometimes you want to add an option to the end of an existing field, making sure you leave the current value there (such as adding additional options to the CAM_CONFIG_OPTS variable).