CommandLineOptionsHelp.h File Reference

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Variables
constexpr static const char	kCommandLineOptionsHelp []
	Help for command line options. More...

Variable Documentation

kCommandLineOptionsHelp

constexpr static const char kCommandLineOptionsHelp[]

staticconstexpr

Initial value:

= R"RAW(
Usage: %s [-l] [-b] [-n] [-q] [dir] [[file:]data.root] [file1.C ... fileN.C]
Options:
  -b : run in batch mode without graphics
  -x : exit on exception
  -e expression: request execution of the given C++ expression
  -n : do not execute logon and logoff macros as specified in .rootrc
  -q : exit after processing command line macro files
  -l : do not show splash screen
  -t : enable thread-safety and implicit multi-threading (IMT)
 --web: display graphics in a default web browser
 --web=<browser>: display graphics in specified web browser
 --notebook : execute ROOT notebook
 dir : if dir is a valid directory cd to it before executing
 
  -?      : print usage
  -h      : print usage
  --help  : print usage
  -config : print ./configure options
  -memstat : run with memory usage monitoring
 
)RAW"

Help for command line options.

• b : run in batch mode without graphics
• x : exit on exception
• e expression: request execution of the given C++ expression.
• n : do not execute logon and logoff macros as specified in .rootrc
• q : exit after processing command line macro files
• l : do not show splash screen

The last three options are only relevant in conjunction with TRint. The following help and info arguments are supported:

• ? : print usage
• h : print usage
• -help : print usage
• config : print ./configure options
• memstat : run with memory usage monitoring

In addition to the above options the arguments that are not options, i.e. they don't start with - or + are treated as follows (and also removed from the argument array):

• <dir> is considered the desired working directory and available via WorkingDirectory(), if more than one dir is specified the first one will prevail
• <file> if the file exists its added to the InputFiles() list
• <file>.root are considered ROOT files and added to the InputFiles() list, the file may be a remote file url
• <macro>.C are considered ROOT macros and also added to the InputFiles() list

In TRint we set the working directory to the <dir>, the ROOT files are connected, and the macros are executed. If your main TApplication is not TRint you have to decide yourself what to do with these options. All specified arguments (also the ones removed) can always be retrieved via the TApplication::Argv() method.

Definition at line 59 of file CommandLineOptionsHelp.h.