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7.4 Summary of Built-in Variables

Here is a summary of all of Octave's built-in variables along with cross references to additional information and their default values. In the following table octave-home stands for the root directory where all of Octave is installed (the default is /usr/local, version stands for the Octave version number (for example, 3.0.0) and arch stands for the type of system for which Octave was compiled (for example, x86_64-unknown-linux-gnu).

EDITOR
See Commands For History.

Default value: "emacs".

EXEC_PATH
See Controlling Subprocesses.

Default value: ":$PATH".

OCTAVE_HOME
Default value: "/usr/local".
PAGER
See Input and Output.

Default value: "less", or "more".

PS1
See Customizing the Prompt.

Default value: "\s:\#> ".

PS2
See Customizing the Prompt.

Default value: "> ".

PS4
See Customizing the Prompt.

Default value: "+ ".

beep_on_error
See Errors and Warnings.

Default value: 0.

completion_append_char
See Commands For Completion.

Default value: " ".

default_save_options
See Simple File I/O.

Default value: "ascii".

crash_dumps_octave_core
See Simple File I/O.

Default value: 1.

fixed_point_format
See Matrices.

Default value: 0.

gnuplot_binary
See Three-Dimensional Plotting.

Default value: "gnuplot".

history_file
See Commands For History.

Default value: "~/.octave_hist".

history_size
See Commands For History.

Default value: 1024.

ignore_function_time_stamp
See Function Files.

Default value: "system".

max_recursion_depth
See Recursion.

Default value: 256.

output_max_field_width
See Matrices.

Default value: 10.

output_precision
See Matrices.

Default value: 5.

page_screen_output
See Input and Output.

Default value: 1.

print_answer_id_name
See Terminal Output.

Default value: 1.

print_empty_dimensions
See Empty Matrices.

Default value: 1.

return_last_computed_value
See Returning From a Function.

Default value: 0.

save_precision
See Simple File I/O.

Default value: 17.

saving_history
See Commands For History.

Default value: 1.

sighup_dumps_octave_core
See Simple File I/O.

Default value: 1.

sigterm_dumps_octave_core
See Simple File I/O.

Default value: 1.

silent_functions
See Defining Functions.

Default value: 0.

split_long_rows
See Matrices.

Default value: 1.

struct_levels_to_print
See Data Structures.

Default value: 2.

suppress_verbose_help_message
See Getting Help.

Default value: 1.