diff --git a/weed/filer2/filer.go b/weed/filer2/filer.go
index a2689f39f..af17bf56c 100644
--- a/weed/filer2/filer.go
+++ b/weed/filer2/filer.go
@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"os"
-	"path/filepath"
 	"strings"
 	"time"
 
@@ -94,7 +93,7 @@ func (f *Filer) CreateEntry(ctx context.Context, entry *Entry, o_excl bool) erro
 	var lastDirectoryEntry *Entry
 
 	for i := 1; i < len(dirParts); i++ {
-		dirPath := "/" + filepath.ToSlash(filepath.Join(dirParts[:i]...))
+		dirPath := "/" + util.Join(dirParts[:i]...)
 		// fmt.Printf("%d directory: %+v\n", i, dirPath)
 
 		// first check local cache
diff --git a/weed/replication/replicator.go b/weed/replication/replicator.go
index a91c2ddd3..1ed60f536 100644
--- a/weed/replication/replicator.go
+++ b/weed/replication/replicator.go
@@ -3,7 +3,6 @@ package replication
 import (
 	"context"
 	"fmt"
-	"path/filepath"
 	"strings"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
@@ -36,7 +35,7 @@ func (r *Replicator) Replicate(ctx context.Context, key string, message *filer_p
 		glog.V(4).Infof("skipping %v outside of %v", key, r.source.Dir)
 		return nil
 	}
-	newKey := filepath.ToSlash(filepath.Join(r.sink.GetSinkToDirectory(), key[len(r.source.Dir):]))
+	newKey := util.Join(r.sink.GetSinkToDirectory(), key[len(r.source.Dir):])
 	glog.V(3).Infof("replicate %s => %s", key, newKey)
 	key = newKey
 	if message.OldEntry != nil && message.NewEntry == nil {
diff --git a/weed/server/filer_grpc_server.go b/weed/server/filer_grpc_server.go
index 4b71c1fb5..06889fbcb 100644
--- a/weed/server/filer_grpc_server.go
+++ b/weed/server/filer_grpc_server.go
@@ -19,7 +19,7 @@ import (
 
 func (fs *FilerServer) LookupDirectoryEntry(ctx context.Context, req *filer_pb.LookupDirectoryEntryRequest) (*filer_pb.LookupDirectoryEntryResponse, error) {
 
-	entry, err := fs.filer.FindEntry(ctx, util.FullPath(filepath.ToSlash(filepath.Join(req.Directory, req.Name))))
+	entry, err := fs.filer.FindEntry(ctx, util.JoinPath(req.Directory, req.Name))
 	if err == filer_pb.ErrNotFound {
 		return &filer_pb.LookupDirectoryEntryResponse{}, nil
 	}
@@ -137,7 +137,6 @@ func (fs *FilerServer) CreateEntry(ctx context.Context, req *filer_pb.CreateEntr
 
 	resp = &filer_pb.CreateEntryResponse{}
 
-	fullpath := util.FullPath(filepath.ToSlash(filepath.Join(req.Directory, req.Entry.Name)))
 	chunks, garbages := filer2.CompactFileChunks(req.Entry.Chunks)
 
 	if req.Entry.Attributes == nil {
@@ -147,7 +146,7 @@ func (fs *FilerServer) CreateEntry(ctx context.Context, req *filer_pb.CreateEntr
 	}
 
 	createErr := fs.filer.CreateEntry(ctx, &filer2.Entry{
-		FullPath: fullpath,
+		FullPath: util.JoinPath(req.Directory, req.Entry.Name),
 		Attr:     filer2.PbToEntryAttribute(req.Entry.Attributes),
 		Chunks:   chunks,
 	}, req.OExcl)
@@ -164,7 +163,7 @@ func (fs *FilerServer) CreateEntry(ctx context.Context, req *filer_pb.CreateEntr
 
 func (fs *FilerServer) UpdateEntry(ctx context.Context, req *filer_pb.UpdateEntryRequest) (*filer_pb.UpdateEntryResponse, error) {
 
-	fullpath := filepath.ToSlash(filepath.Join(req.Directory, req.Entry.Name))
+	fullpath := util.Join(req.Directory, req.Entry.Name)
 	entry, err := fs.filer.FindEntry(ctx, util.FullPath(fullpath))
 	if err != nil {
 		return &filer_pb.UpdateEntryResponse{}, fmt.Errorf("not found %s: %v", fullpath, err)
@@ -176,7 +175,7 @@ func (fs *FilerServer) UpdateEntry(ctx context.Context, req *filer_pb.UpdateEntr
 	chunks, garbages := filer2.CompactFileChunks(req.Entry.Chunks)
 
 	newEntry := &filer2.Entry{
-		FullPath: util.FullPath(filepath.ToSlash(filepath.Join(req.Directory, req.Entry.Name))),
+		FullPath: util.JoinPath(req.Directory, req.Entry.Name),
 		Attr:     entry.Attr,
 		Extended: req.Entry.Extended,
 		Chunks:   chunks,
@@ -219,7 +218,7 @@ func (fs *FilerServer) UpdateEntry(ctx context.Context, req *filer_pb.UpdateEntr
 }
 
 func (fs *FilerServer) DeleteEntry(ctx context.Context, req *filer_pb.DeleteEntryRequest) (resp *filer_pb.DeleteEntryResponse, err error) {
-	err = fs.filer.DeleteEntryMetaAndData(ctx, util.FullPath(filepath.ToSlash(filepath.Join(req.Directory, req.Name))), req.IsRecursive, req.IgnoreRecursiveError, req.IsDeleteData)
+	err = fs.filer.DeleteEntryMetaAndData(ctx, util.JoinPath(req.Directory, req.Name), req.IsRecursive, req.IgnoreRecursiveError, req.IsDeleteData)
 	resp = &filer_pb.DeleteEntryResponse{}
 	if err != nil {
 		resp.Error = err.Error()
diff --git a/weed/server/filer_grpc_server_listen.go b/weed/server/filer_grpc_server_listen.go
index a3df1cf9d..9c98f74e5 100644
--- a/weed/server/filer_grpc_server_listen.go
+++ b/weed/server/filer_grpc_server_listen.go
@@ -34,7 +34,7 @@ func (fs *FilerServer) ListenForEvents(req *filer_pb.ListenForEventsRequest, str
 				entryName = eventNotification.NewEntry.Name
 			}
 
-			fullpath := util.PathJoin(dirPath, entryName)
+			fullpath := util.Join(dirPath, entryName)
 
 			// skip on filer internal meta logs
 			if strings.HasPrefix(fullpath, "/.meta") {
diff --git a/weed/server/filer_ui/breadcrumb.go b/weed/server/filer_ui/breadcrumb.go
index 2f0df7f91..f21cce7d1 100644
--- a/weed/server/filer_ui/breadcrumb.go
+++ b/weed/server/filer_ui/breadcrumb.go
@@ -1,8 +1,9 @@
 package master_ui
 
 import (
-	"path/filepath"
 	"strings"
+
+	"github.com/chrislusf/seaweedfs/weed/util"
 )
 
 type Breadcrumb struct {
@@ -16,7 +17,7 @@ func ToBreadcrumb(fullpath string) (crumbs []Breadcrumb) {
 	for i := 0; i < len(parts); i++ {
 		crumb := Breadcrumb{
 			Name: parts[i] + " /",
-			Link: "/" + filepath.ToSlash(filepath.Join(parts[0:i+1]...)),
+			Link: "/" + util.Join(parts[0:i+1]...),
 		}
 		if !strings.HasSuffix(crumb.Link, "/") {
 			crumb.Link += "/"
diff --git a/weed/server/volume_grpc_copy.go b/weed/server/volume_grpc_copy.go
index 9df9f3149..7db23fae1 100644
--- a/weed/server/volume_grpc_copy.go
+++ b/weed/server/volume_grpc_copy.go
@@ -225,7 +225,7 @@ func (vs *VolumeServer) CopyFile(req *volume_server_pb.CopyFileRequest, stream v
 	} else {
 		baseFileName := erasure_coding.EcShardBaseFileName(req.Collection, int(req.VolumeId)) + req.Ext
 		for _, location := range vs.store.Locations {
-			tName := util.PathJoin(location.Directory, baseFileName)
+			tName := util.Join(location.Directory, baseFileName)
 			if util.FileExists(tName) {
 				fileName = tName
 			}
diff --git a/weed/shell/command_fs_mv.go b/weed/shell/command_fs_mv.go
index c7c0984fc..0a7eed02d 100644
--- a/weed/shell/command_fs_mv.go
+++ b/weed/shell/command_fs_mv.go
@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"path/filepath"
 
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"github.com/chrislusf/seaweedfs/weed/util"
@@ -65,7 +64,7 @@ func (c *commandFsMv) Do(args []string, commandEnv *CommandEnv, writer io.Writer
 		// moving a file or folder
 		if err == nil && respDestinationLookupEntry.Entry.IsDirectory {
 			// to a directory
-			targetDir = filepath.ToSlash(filepath.Join(destinationDir, destinationName))
+			targetDir = util.Join(destinationDir, destinationName)
 			targetName = sourceName
 		} else {
 			// to a file or folder
diff --git a/weed/shell/commands.go b/weed/shell/commands.go
index 06b46b774..41f197328 100644
--- a/weed/shell/commands.go
+++ b/weed/shell/commands.go
@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"io"
 	"net/url"
-	"path/filepath"
 	"strconv"
 	"strings"
 
@@ -55,7 +54,7 @@ func (ce *CommandEnv) parseUrl(input string) (path string, err error) {
 		return
 	}
 	if !strings.HasPrefix(input, "/") {
-		input = filepath.ToSlash(filepath.Join(ce.option.Directory, input))
+		input = util.Join(ce.option.Directory, input)
 	}
 	return input, err
 }
diff --git a/weed/util/fullpath.go b/weed/util/fullpath.go
index 413ee27bf..4ce8a2f90 100644
--- a/weed/util/fullpath.go
+++ b/weed/util/fullpath.go
@@ -47,6 +47,10 @@ func (fp FullPath) Split() []string {
 	return strings.Split(string(fp)[1:], "/")
 }
 
-func PathJoin(dir, name string) string {
-	return filepath.ToSlash(filepath.Join(dir, name))
-}
\ No newline at end of file
+func Join(names ...string) string {
+	return filepath.ToSlash(filepath.Join(names...))
+}
+
+func JoinPath(names ...string) FullPath {
+	return FullPath(Join(names...))
+}