/n/dump/2014/0311/sys/src/cmd/acme/look.c:116,121 - /n/dump/2014/0312/sys/src/cmd/acme/look.c:116,125
  				m->attr = plumbunpackattr(buf);
  			}
  		}
+ 		if(noplumb){
+ 			sprint(buf, "pid=%d", mainpid);
+ 			m->attr = plumbaddattr(m->attr, plumbunpackattr(buf));
+ 		}
  		r = runemalloc(q1-q0);
  		bufread(t->file, q0, r, q1-q0);
  		m->data = runetobyte(r, q1-q0);
/n/dump/2014/0311/sys/src/cmd/acme/acme.c:26,32 - /n/dump/2014/0312/sys/src/cmd/acme/acme.c:26,31
  char		wdir[512] = ".";
  Reffont	*reffonts[2];
  int		snarffd = -1;
- int		mainpid;
  int		plumbsendfd;
  int		plumbeditfd;
  
/n/dump/2014/0311/sys/src/cmd/acme/acme.c:426,432 - /n/dump/2014/0312/sys/src/cmd/acme/acme.c:425,431
  	Window *w;
  	Plumbmsg *pm;
  	Mouse m;
- 	char *act;
+ 	char *pid, *act;
  	enum { MResize, MMouse, MPlumb, MWarnings, NMALT };
  	static Alt alts[NMALT+1];
  
/n/dump/2014/0311/sys/src/cmd/acme/acme.c:460,465 - /n/dump/2014/0312/sys/src/cmd/acme/acme.c:459,471
  			rowresize(&row, screen->clipr);
  			break;
  		case MPlumb:
+ 			if(noplumb) {
+ 				pid = plumblookup(pm->attr, "pid");
+ 				if(pid == nil || atoi(pid) != mainpid){
+ 					plumbfree(pm);
+ 					break;
+ 				}
+ 			}
  			if(strcmp(pm->type, "text") == 0){
  				act = plumblookup(pm->attr, "action");
  				if(act==nil || strcmp(act, "showfile")==0)
/n/dump/2014/0311/sys/src/cmd/acme/dat.h:506,511 - /n/dump/2014/0312/sys/src/cmd/acme/dat.h:506,512
  Image		*but3col;
  Cursor		boxcursor;
  Row			row;
+ int			mainpid;
  int			timerpid;
  Disk			*disk;
  Text			*seltext;
/n/dump/2014/0311/sys/src/cmd/acme/dat.h:528,533 - /n/dump/2014/0312/sys/src/cmd/acme/dat.h:529,535
  Image		*textcols[NCOL];
  int			plumbsendfd;
  int			plumbeditfd;
+ int			noplumb;
  char			wdir[];
  int			editing;
  int			messagesize;		/* negotiated in 9P version setup */
/n/dump/2014/0311/sys/src/cmd/acme/exec.c:43,49 - /n/dump/2014/0312/sys/src/cmd/acme/exec.c:43,51
  void	local(Text*, Text*, Text*, int, int, Rune*, int);
  void	look(Text*, Text*, Text*, int, int, Rune*, int);
  void	newcol(Text*, Text*, Text*, int, int, Rune*, int);
+ void	noplumbx(Text*, Text*, Text*, int, int, Rune*, int);
  void	paste(Text*, Text*, Text*, int, int, Rune*, int);
+ void	plumbx(Text*, Text*, Text*, int, int, Rune*, int);
  void	put(Text*, Text*, Text*, int, int, Rune*, int);
  void	putall(Text*, Text*, Text*, int, int, Rune*, int);
  void	sendx(Text*, Text*, Text*, int, int, Rune*, int);
/n/dump/2014/0311/sys/src/cmd/acme/exec.c:80,86 - /n/dump/2014/0312/sys/src/cmd/acme/exec.c:82,90
  	{ L"Look",		look,		FALSE,	XXX,		XXX		},
  	{ L"New",		new,		FALSE,	XXX,		XXX		},
  	{ L"Newcol",	newcol,	FALSE,	XXX,		XXX		},
+ 	{ L"Noplumb",	noplumbx,		FALSE,	XXX,		XXX		},
  	{ L"Paste",		paste,	TRUE,	TRUE,	XXX		},
+ 	{ L"Plumb",	plumbx,		FALSE,	XXX,		XXX		},
  	{ L"Put",		put,		FALSE,	XXX,		XXX		},
  	{ L"Putall",		putall,	FALSE,	XXX,		XXX		},
  	{ L"Redo",		undo,	FALSE,	FALSE,	XXX		},
/n/dump/2014/0311/sys/src/cmd/acme/exec.c:948,953 - /n/dump/2014/0312/sys/src/cmd/acme/exec.c:952,969
  		dir.nr = 0;
  	}
  	run(nil, runetobyte(arg, narg), dir.r, dir.nr, FALSE, aa, a, FALSE);
+ }
+ 
+ void
+ noplumbx(Text*, Text*, Text*, int, int, Rune*, int)
+ {
+ 	noplumb = 1;
+ }
+ 
+ void
+ plumbx(Text*, Text*, Text*, int, int, Rune*, int)
+ {
+ 	noplumb = 0;
  }
  
  void