cleanup.go    | 27 ++++++++++++++++++++-------
 doc/news.texi |  7 +++++++
 usage.go      |  4 ++--

diff --git a/cleanup.go b/cleanup.go
index dc5837eac8b52009053bf0850c34f893bfb2107fc83bd34c1228f3dc663d7d85..b2dce227b24d88cd07408f0a48a1e1fee9040136b26cc853ce497825c75dd333 100644
--- a/cleanup.go
+++ b/cleanup.go
@@ -18,6 +18,7 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 	"io"
 	"log"
@@ -31,6 +32,10 @@ const (
 	CleanupFull = "full"
 	CleanupLog  = "log"
 	CleanupTmp  = "tmp"
+)
+
+var (
+	DryRun = flag.Bool("dry-run", false, "do no delete files during cleanup, just show them")
 )
 
 func redoDirClean(root, what string) error {
@@ -57,15 +62,19 @@ 			switch what {
 			case CleanupLog:
 				if strings.HasSuffix(fi.Name(), LogSuffix) {
 					fmt.Println(pth)
-					if err = os.Remove(pth); err != nil {
-						return err
+					if !*DryRun {
+						if err = os.Remove(pth); err != nil {
+							return err
+						}
 					}
 				}
 			case CleanupTmp:
 				if strings.HasPrefix(fi.Name(), TmpPrefix) {
 					fmt.Println(pth)
-					if err = os.Remove(pth); err != nil {
-						return err
+					if !*DryRun {
+						if err = os.Remove(pth); err != nil {
+							return err
+						}
 					}
 				}
 			default:
@@ -101,7 +110,9 @@ 			if fi.IsDir() {
 				if fi.Name() == RedoDir {
 					if what == CleanupFull {
 						fmt.Println(pthRel)
-						err = os.RemoveAll(pth)
+						if !*DryRun {
+							err = os.RemoveAll(pth)
+						}
 					} else {
 						err = redoDirClean(pth, what)
 					}
@@ -116,8 +127,10 @@ 			}
 			if (what == CleanupTmp || what == CleanupFull) &&
 				strings.HasPrefix(fi.Name(), TmpPrefix) {
 				fmt.Println(pthRel)
-				if err = os.Remove(pth); err != nil {
-					return err
+				if !*DryRun {
+					if err = os.Remove(pth); err != nil {
+						return err
+					}
 				}
 			}
 		}
diff --git a/doc/news.texi b/doc/news.texi
index b859a7392b783fee8314ac9da96d635d7afb93619c8a5910248e26fb7b2f078f..8412e026ec264b73a9c6a3606411546128c8264cda02da7487b865328d0af8cd 100644
--- a/doc/news.texi
+++ b/doc/news.texi
@@ -1,6 +1,13 @@
 @node News
 @unnumbered News
 
+@anchor{Release 1.1.0}
+@section Release 1.1.0
+@itemize
+@item
+    @command{redo-cleanup} has @option{-dry-run} option.
+@end itemize
+
 @anchor{Release 1.0.0}
 @section Release 1.0.0
 @itemize
diff --git a/usage.go b/usage.go
index cfc1b0dec312771f413772274c95a60c1263fc67558d4e312ddc4815d1387988..e522f94e0440eab3cfb8c2c6159729fd4ea10b13e9146358f001a4d4d2ccf2de 100644
--- a/usage.go
+++ b/usage.go
@@ -26,7 +26,7 @@ 	"strings"
 )
 
 const (
-	Version  = "1.0.0"
+	Version  = "1.1.0"
 	Warranty = `This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, version 3 of the License.
@@ -61,7 +61,7 @@ * redo [options] [target ...]
   forcefully and *sequentially* build specified targets
 * redo-always
   always build current target. Unusable outside .do
-* redo-cleanup {full,log,tmp} [...]
+* redo-cleanup [-dry-run] {full,log,tmp} [...]
   remove either all goredo's related temporary files, or kept stderr
   logs, or everything (including .redo directories) related
 * redo-dot target [...]