anchor.diff:           run_script/2,run_script/3,run_string/2,run_string/3]).
   
   %% The shell commands which generally callable.
  --export([c/1,c/2,ec/1,ec/2,i/0,i/1,l/1,m/0,m/1,pid/3,p/1,pp/1,regs/0,exit/0]).
  +-export([c/1,c/2,cd/1,ec/1,ec/2,help/0,i/0,i/1,l/1,ls/1,m/0,m/1,
  +         pid/3,p/1,pp/1,pwd/0,q/0,regs/0,exit/0]).
   
   -import(lfe_env, [new/0,add_env/2,
                     add_vbinding/3,add_vbindings/2,is_vbound/2,get_vbinding/2,
  
positive.code: 
  ec(F, Os) -> c:c(F, Os).
  
  %% i([Pids]) -> ok.
  
  i() -> c:i().
  
negative.code: m(Ms) ->
      foreach(fun (M) -> c:m(M) end, Ms).
  
  %% p(Expr) -> ok.
  %% pp(Expr) -> ok.
  %%  Print/prettyprint a value.
  
  p(E) ->
      Cs = lfe_io:print1(E),
      io:put_chars([Cs,$\n]).
  
  pp(E) ->
      Cs = lfe_io:prettyprint1(E),
      io:put_chars([Cs,$\n]).
  
  %% pid(A, B, C) -> Pid.
  %%  Build a pid from its 3 "parts".
  
  pid(A, B, C) -> c:pid(A, B, C).
  
  %% pwd() -> ok.
  
  pwd() -> c:pwd().
  
  %% q() -> ok.
  
  q() -> c:q().
  
  %% regs() -> ok.
  
  regs() -> c:regs().
  