diff --git a/tests/test-bookmarks.t b/tests/test-bookmarks.t
--- a/tests/test-bookmarks.t
+++ b/tests/test-bookmarks.t
@@ -572,8 +572,8 @@ pull --update works the same as pull && 
 
   $ hg bookmark -r3 Y
   moving bookmark 'Y' forward from db815d6d32e6
-  $ cp -r  ../cloned-bookmarks-update ../cloned-bookmarks-manual-update
-  $ cp -r  ../cloned-bookmarks-update ../cloned-bookmarks-manual-update-with-divergence
+  $ cp -R ../cloned-bookmarks-update ../cloned-bookmarks-manual-update
+  $ cp -R ../cloned-bookmarks-update ../cloned-bookmarks-manual-update-with-divergence
 
 (manual version)
 
diff --git a/tests/test-histedit-obsolete.t b/tests/test-histedit-obsolete.t
--- a/tests/test-histedit-obsolete.t
+++ b/tests/test-histedit-obsolete.t
@@ -339,7 +339,7 @@ phases.new-commit option is.
 
 New-commit as draft (default)
 
-  $ cp -r base simple-draft
+  $ cp -R base simple-draft
   $ cd simple-draft
   $ hg histedit -r 'b449568bf7fc' --commands - << EOF
   > edit b449568bf7fc 11 f
@@ -378,7 +378,7 @@ New-commit as draft (default)
 
 New-commit as secret (config)
 
-  $ cp -r base simple-secret
+  $ cp -R base simple-secret
   $ cd simple-secret
   $ cat >> .hg/hgrc << EOF
   > [phases]
@@ -425,7 +425,7 @@ Changeset reordering
 If a secret changeset is put before a draft one, all descendant should be secret.
 It seems more important to present the secret phase.
 
-  $ cp -r base reorder
+  $ cp -R base reorder
   $ cd reorder
   $ hg histedit -r 'b449568bf7fc' --commands - << EOF
   > pick b449568bf7fc 11 f
@@ -462,7 +462,7 @@ better safe than sorry). Folding between
 
 Note that there is a few reordering in this series for more extensive test
 
-  $ cp -r base folding
+  $ cp -R base folding
   $ cd folding
   $ cat >> .hg/hgrc << EOF
   > [phases]
diff --git a/tests/test-obsolete-checkheads.t b/tests/test-obsolete-checkheads.t
--- a/tests/test-obsolete-checkheads.t
+++ b/tests/test-obsolete-checkheads.t
@@ -23,7 +23,7 @@ Check that obsolete properly strip heads
   $ mkcommit base
   $ hg phase --public .
   $ cd ..
-  $ cp -r remote base
+  $ cp -R remote base
   $ hg clone remote local
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
@@ -54,7 +54,7 @@ setup
   |/
   o  b4952fcf48cf (public) add base
   
-  $ cp -r ../remote ../backup1
+  $ cp -R ../remote ../backup1
 
 old exists remotely as draft. It is obsoleted by new that we now push.
 Push should not warn about creating new head
@@ -73,7 +73,7 @@ old head is now public (public local ver
 setup
 
   $ rm -fr ../remote
-  $ cp -r ../backup1 ../remote
+  $ cp -R ../backup1 ../remote
   $ hg -R ../remote phase --public c70b08862e08
   $ hg pull -v
   pulling from $TESTTMP/remote (glob)
@@ -104,7 +104,7 @@ TODO: Not implemented yet.
 # setup
 #
 #   $ rm -fr ../remote
-#   $ cp -r ../backup1 ../remote
+#   $ cp -R ../backup1 ../remote
 #   $ hg -R ../remote phase --public c70b08862e08
 #   $ hg phase --draft --force c70b08862e08
 #   $ hg log -G --hidden
@@ -131,7 +131,7 @@ old head is obsolete but replacement is 
 setup
 
   $ rm -fr ../remote
-  $ cp -r ../backup1 ../remote
+  $ cp -R ../backup1 ../remote
   $ hg phase --draft --force '(0::) - 0'
   $ hg up -q '.^'
   $ mkcommit other
@@ -206,7 +206,7 @@ setup. (The obsolete marker is known loc
   |/
   @  b4952fcf48cf (public) add base
   
-  $ cp -r ../remote ../backup2
+  $ cp -R ../remote ../backup2
 
 Push should not warn about adding new heads. We create one, but we'll delete
 one anyway.
@@ -226,7 +226,7 @@ Remote head is unknown but obsoleted by 
 setup
 
   $ rm -fr ../remote
-  $ cp -r ../backup1 ../remote
+  $ cp -R ../backup1 ../remote
   $ cd ..
   $ rm -rf local
   $ hg clone remote local -r 0
diff --git a/tests/test-revert.t b/tests/test-revert.t
--- a/tests/test-revert.t
+++ b/tests/test-revert.t
@@ -784,7 +784,7 @@ Test revert --all to parent content
 
 (setup from reference repo)
 
-  $ cp -r revert-ref revert-parent-all
+  $ cp -R revert-ref revert-parent-all
   $ cd revert-parent-all
 
 check revert output
@@ -841,7 +841,7 @@ Test revert --all to "base" content
 
 (setup from reference repo)
 
-  $ cp -r revert-ref revert-base-all
+  $ cp -R revert-ref revert-base-all
   $ cd revert-base-all
 
 check revert output
@@ -896,7 +896,7 @@ Test revert to parent content with expli
 
 (setup from reference repo)
 
-  $ cp -r revert-ref revert-parent-explicit
+  $ cp -R revert-ref revert-parent-explicit
   $ cd revert-parent-explicit
 
 revert all files individually and check the output
@@ -989,7 +989,7 @@ Test revert to "base" content with expli
 
 (setup from reference repo)
 
-  $ cp -r revert-ref revert-base-explicit
+  $ cp -R revert-ref revert-base-explicit
   $ cd revert-base-explicit
 
 revert all files individually and check the output
diff --git a/tests/test-subrepo.t b/tests/test-subrepo.t
--- a/tests/test-subrepo.t
+++ b/tests/test-subrepo.t
@@ -1518,8 +1518,8 @@ Forgetting an explicit path in a subrepo
 Courtesy phases synchronisation to publishing server does not block the push
 (issue3781)
 
-  $ cp -r main issue3781
-  $ cp -r main issue3781-dest
+  $ cp -R main issue3781
+  $ cp -R main issue3781-dest
   $ cd issue3781-dest/s
   $ hg phase tip # show we have draft changeset
   5: draft
diff --git a/tests/test-treemanifest.t b/tests/test-treemanifest.t
--- a/tests/test-treemanifest.t
+++ b/tests/test-treemanifest.t
@@ -458,7 +458,7 @@ Excludes with a glob should not exclude 
   b/bar/fruits.txt (glob)
   b/bar/orange/fly/gnat.py (glob)
   b/bar/orange/fly/housefly.txt (glob)
-  $ cp -r .hg/store .hg/store-copy
+  $ cp -R .hg/store .hg/store-copy
 
 Test files for a subdirectory.
 
@@ -468,7 +468,7 @@ Test files for a subdirectory.
   b/bar/orange/fly/gnat.py (glob)
   b/bar/orange/fly/housefly.txt (glob)
   b/foo/apple/bees/flower.py (glob)
-  $ cp -r .hg/store-copy/. .hg/store
+  $ cp -R .hg/store-copy/. .hg/store
 
 Test files with just includes and excludes.
 
@@ -477,7 +477,7 @@ Test files with just includes and exclud
   $ rm -r .hg/store/meta/b/foo/apple/bees
   $ hg files -r . -I path:b/bar -X path:b/bar/orange/fly -I path:b/foo -X path:b/foo/apple/bees
   b/bar/fruits.txt (glob)
-  $ cp -r .hg/store-copy/. .hg/store
+  $ cp -R .hg/store-copy/. .hg/store
 
 Test files for a subdirectory, excluding a directory within it.
 
@@ -487,7 +487,7 @@ Test files for a subdirectory, excluding
   b/bar/fruits.txt (glob)
   b/bar/orange/fly/gnat.py (glob)
   b/bar/orange/fly/housefly.txt (glob)
-  $ cp -r .hg/store-copy/. .hg/store
+  $ cp -R .hg/store-copy/. .hg/store
 
 Test files for a sub directory, including only a directory within it, and
 including an unrelated directory.
@@ -497,7 +497,7 @@ including an unrelated directory.
   $ hg files -r . -I path:b/bar/orange -I path:a b
   b/bar/orange/fly/gnat.py (glob)
   b/bar/orange/fly/housefly.txt (glob)
-  $ cp -r .hg/store-copy/. .hg/store
+  $ cp -R .hg/store-copy/. .hg/store
 
 Test files for a pattern, including a directory, and excluding a directory
 within that.
@@ -507,7 +507,7 @@ within that.
   $ rm -r .hg/store/meta/b/bar/orange
   $ hg files -r . glob:**.txt -I path:b/bar -X path:b/bar/orange
   b/bar/fruits.txt (glob)
-  $ cp -r .hg/store-copy/. .hg/store
+  $ cp -R .hg/store-copy/. .hg/store
 
 Add some more changes to the deep repo
   $ echo narf >> b/bar/fruits.txt
@@ -553,7 +553,7 @@ Finish first server
   $ killdaemons.py
 
 Back up the recently added revlogs
-  $ cp -r .hg/store .hg/store-newcopy
+  $ cp -R .hg/store .hg/store-newcopy
 
 Verify reports missing dirlog
   $ rm .hg/store/meta/b/00manifest.*
@@ -582,7 +582,7 @@ Verify reports missing dirlog
   8 integrity errors encountered!
   (first damaged changeset appears to be 0)
   [1]
-  $ cp -r .hg/store-newcopy/. .hg/store
+  $ cp -R .hg/store-newcopy/. .hg/store
 
 Verify reports missing dirlog entry
   $ mv -f .hg/store-copy/meta/b/00manifest.* .hg/store/meta/b/
@@ -607,7 +607,7 @@ Verify reports missing dirlog entry
   8 integrity errors encountered!
   (first damaged changeset appears to be 1)
   [1]
-  $ cp -r .hg/store-newcopy/. .hg/store
+  $ cp -R .hg/store-newcopy/. .hg/store
 
 Test cloning a treemanifest repo over http.
   $ hg serve -p $HGPORT -d --pid-file=hg.pid --errorlog=errors.log
diff --git a/tests/test-verify.t b/tests/test-verify.t
--- a/tests/test-verify.t
+++ b/tests/test-verify.t
@@ -69,10 +69,10 @@ Set up a repo for testing missing revlog
   $ cd missing-entries
   $ echo 0 > file
   $ hg ci -Aqm0
-  $ cp -r .hg/store .hg/store-partial
+  $ cp -R .hg/store .hg/store-partial
   $ echo 1 > file
   $ hg ci -Aqm1
-  $ cp -r .hg/store .hg/store-full
+  $ cp -R .hg/store .hg/store-full
 
 Entire changelog missing
 
@@ -84,7 +84,7 @@ Entire changelog missing
   3 integrity errors encountered!
   (first damaged changeset appears to be 0)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Entire manifest log missing
 
@@ -94,7 +94,7 @@ Entire manifest log missing
   1 integrity errors encountered!
   (first damaged changeset appears to be 0)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Entire filelog missing
 
@@ -109,7 +109,7 @@ Entire filelog missing
   3 integrity errors encountered!
   (first damaged changeset appears to be 0)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Entire changelog and manifest log missing
 
@@ -118,7 +118,7 @@ Entire changelog and manifest log missin
   $ hg verify -q
   warning: orphan revlog 'data/file.i'
   1 warnings encountered!
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Entire changelog and filelog missing
 
@@ -137,7 +137,7 @@ Entire changelog and filelog missing
   6 integrity errors encountered!
   (first damaged changeset appears to be 0)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Entire manifest log and filelog missing
 
@@ -152,7 +152,7 @@ Entire manifest log and filelog missing
   2 integrity errors encountered!
   (first damaged changeset appears to be 0)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Changelog missing entry
 
@@ -165,7 +165,7 @@ Changelog missing entry
   1 warnings encountered!
   3 integrity errors encountered!
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Manifest log missing entry
 
@@ -176,7 +176,7 @@ Manifest log missing entry
   2 integrity errors encountered!
   (first damaged changeset appears to be 1)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Filelog missing entry
 
@@ -186,7 +186,7 @@ Filelog missing entry
   1 integrity errors encountered!
   (first damaged changeset appears to be 1)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Changelog and manifest log missing entry
 
@@ -199,7 +199,7 @@ Changelog and manifest log missing entry
   1 warnings encountered!
   2 integrity errors encountered!
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Changelog and filelog missing entry
 
@@ -211,7 +211,7 @@ Changelog and filelog missing entry
    file@?: manifest refers to unknown revision c10f2164107d
   3 integrity errors encountered!
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Manifest and filelog missing entry
 
@@ -222,7 +222,7 @@ Manifest and filelog missing entry
   1 integrity errors encountered!
   (first damaged changeset appears to be 1)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Corrupt changelog base node to cause failure to read revision
 
@@ -238,7 +238,7 @@ Corrupt changelog base node to cause fai
   4 integrity errors encountered!
   (first damaged changeset appears to be 0)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Corrupt manifest log base node to cause failure to read revision
 
@@ -250,7 +250,7 @@ Corrupt manifest log base node to cause 
   2 integrity errors encountered!
   (first damaged changeset appears to be 0)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
 Corrupt filelog base node to cause failure to read revision
 
@@ -261,7 +261,7 @@ Corrupt filelog base node to cause failu
   1 integrity errors encountered!
   (first damaged changeset appears to be 0)
   [1]
-  $ cp -r .hg/store-full/. .hg/store
+  $ cp -R .hg/store-full/. .hg/store
 
   $ cd ..