debug_print_help

# File lib/debug.rb, line 670
    def debug_print_help
      stdout.print Debugger help v.-0.002bCommands  b[reak] [file:|class:]<line|method>  b[reak] [class.]<line|method>                             set breakpoint to some position  wat[ch] <expression>       set watchpoint to some expression  cat[ch] (<exception>|off)  set catchpoint to an exception  b[reak]                    list breakpoints  cat[ch]                    show catchpoint  del[ete][ nnn]             delete some or all breakpoints  disp[lay] <expression>     add expression into display expression list  undisp[lay][ nnn]          delete one particular or all display expressions  c[ont]                     run until program ends or hit breakpoint  s[tep][ nnn]               step (into methods) one line or till line nnn  n[ext][ nnn]               go over one line or till line nnn  w[here]                    display frames  f[rame]                    alias for where  l[ist][ (-|nn-mm)]         list program, - lists backwards                             nn-mm lists given lines  up[ nn]                    move to higher frame  down[ nn]                  move to lower frame  fin[ish]                   return to outer frame  tr[ace] (on|off)           set trace mode of current thread  tr[ace] (on|off) all       set trace mode of all threads  q[uit]                     exit from debugger  v[ar] g[lobal]             show global variables  v[ar] l[ocal]              show local variables  v[ar] i[nstance] <object>  show instance variables of object  v[ar] c[onst] <object>     show constants of object  m[ethod] i[nstance] <obj>  show methods of object  m[ethod] <class|module>    show instance methods of class or module  th[read] l[ist]            list all threads  th[read] c[ur[rent]]       show current thread  th[read] [sw[itch]] <nnn>  switch thread context to nnn  th[read] stop <nnn>        stop thread nnn  th[read] resume <nnn>      resume thread nnn  pp expression              evaluate expression and pretty_print its value  p expression               evaluate expression and print its value  r[estart]                  restart program  h[elp]                     print this help  <everything else>          evaluate
    end