Synopsis:
backtrace [count]
Print a stack trace, with the most recent frame at the top. With a positive number, print at most many entries.
In the listing produced, an arrow, -->, indicates the 'current frame'. The current frame determines the context used for many debugger commands such as source-line listing (list) or the edit command.
Examples:
backtrace # Print a full stack trace
backtrace 2 # Print only the top two entries