--- /sys/src/cmd/ip/ftpfs/ftpfs.c	Sat Dec 31 17:31:22 2016
+++ ftpfs.c	Mon Feb 12 17:21:42 2018
@@ -85,6 +85,7 @@
 
 char *nosuchfile = "file does not exist";
 char *keyspec = "";
+int docache = 0;
 
 void
 usage(void)
@@ -149,6 +150,9 @@
 	case 'q':
 		quiet = 1;
 		break;
+	case 'h':
+		docache = 1;
+		break;
 	} ARGEND
 	if(argc != 1)
 		usage();
@@ -401,7 +405,7 @@
 
 			/* everything else */
 			node = extendpath(node, s_copy(elems[i]));
-			if(ISCACHED(node->parent)){
+			if(docache && ISCACHED(node->parent)){
 				/* the cache of the parent is good, believe it */
 				if(!ISVALID(node)){
 					err = nosuchfile;
@@ -454,7 +458,7 @@
 		filedirty(f->node);
 	} else {
 		/* read the remote file or directory */
-		if(!ISCACHED(f->node)){
+		if(!docache || !ISCACHED(f->node)){
 			filefree(f->node);
 			if(f->node->d->qid.type & QTDIR){
 				invalidate(f->node);
@@ -464,7 +468,8 @@
 				if(readfile(f->node) < 0)
 					return errstring;
 			}
-			CACHED(f->node);
+			if(docache)
+				CACHED(f->node);
 		}
 	}
 
@@ -534,10 +539,11 @@
 		}
 	} else {
 		/* reread file if it's fallen out of the cache */
-		if(!ISCACHED(f->node))
+		if(!docache || !ISCACHED(f->node))
 			if(readfile(f->node) < 0)
 				return errstring;
-		CACHED(f->node);
+		if(docache)
+			CACHED(f->node);
 		rv = fileread(f->node, (char*)mbuf, off, cnt);
 		if(rv < 0)
 			return errstring;
@@ -614,10 +620,11 @@
 	Node *p;
 
 	p = f->node->parent;
-	if(!ISCACHED(p)){
+	if(!docache || !ISCACHED(p)){
 		invalidate(p);
 		readdir(p);
-		CACHED(p);
+		if(docache)
+			CACHED(p);
 	}
 	if(!ISVALID(f->node))
 		return nosuchfile;