### 13.3 Debug Mode

There are two additional support functions that allow the user to interrogate where in the execution of a script Octave entered the debug mode and to print the code in the script surrounding the point where Octave entered debug mode.

— Loadable Function: dbwhere ()

> Show where we are in the code

> See also: dbclear, dbstatus, dbstop.

— Loadable Function: dbtype ()

> List script file with line numbers.

> See also: dbclear, dbstatus, dbstop.

Debug mode equally allows single line stepping through a function using the commands `dbstep` and `dbnext`. These differ slightly in the way they treat the next executable line if the next line itself is a function defined in an m-file. The `dbnext` command will execute the next line, while staying in the existing function being debugged. The `dbstep` command will step in to the new function.