diff --git a/lib/ulib/runs b/lib/ulib/runs
index 69f7f4e..76091ff 100644
--- a/lib/ulib/runs
+++ b/lib/ulib/runs
@@ -99,7 +99,7 @@ function runs_initdir() {
         # d'abord chercher si le répertoire existe déjà
         for runshostdir in "${RUNSHOSTSDIRS[@]}"; do
             found=
-            for dir in "$runshostdir/$domain/$hostname" "$runshostdir/$host"; do
+            for dir in "$runshostdir/$host/runs" "$runshostdir/$domain/$hostname/runs" "$runshostdir/$host" "$runshostdir/$domain/$hostname"; do
                 if [ -d "$dir" ]; then
                     found=1
                     break
@@ -121,18 +121,18 @@ function runs_initdir() {
             found=
             for dir in "$runshostdir/$host" "$runshostdir/$domain/$hostname"; do
                 if [ -d "$dir" ]; then
-                    runshostdir="$dir"
+                    runshostdir="$dir/runs"
                     found=1
                     break
                 fi
             done
-            [ -n "$found" ] || runshostdir="$runshostdir/$host"
+            [ -n "$found" ] || runshostdir="$runshostdir/$host/runs"
         else
-            runshostdir="${RUNSHOSTSDIRS[0]}/$host"
+            runshostdir="${RUNSHOSTSDIRS[0]}/$host/runs"
         fi
     else
         host="$hostname"
-        runshostdir="${RUNSHOSTSDIRS[0]}/$host"
+        runshostdir="${RUNSHOSTSDIRS[0]}/$host/runs"
     fi
 
     local rscriptt runsconft sysinfost defaultt configt servicest
@@ -158,24 +158,24 @@ function runs_initdir() {
         echo "$sysinfost" >"$runshostdir/sysinfos.conf"
     fi
     if [ ! -f "$runshostdir/default" ]; then
-        estep "Création de $(ppath "$runshostdir/default")"
-        echo "$defaultt" >"$runshostdir/default"
+        estep "Création de $(ppath "$runshostdir/default.rr")"
+        echo "$defaultt" >"$runshostdir/default.rr"
         edit_default=1
     fi
     if [ ! -f "$runshostdir/config" ]; then
-        estep "Création de $(ppath "$runshostdir/config")"
-        echo "$configt" >"$runshostdir/config"
+        estep "Création de $(ppath "$runshostdir/config.rr")"
+        echo "$configt" >"$runshostdir/config.rr"
     fi
     if [ ! -f "$runshostdir/services" ]; then
-        estep "Création de $(ppath "$runshostdir/services")"
-        echo "$servicest" >"$runshostdir/services"
+        estep "Création de $(ppath "$runshostdir/services.rr")"
+        echo "$servicest" >"$runshostdir/services.rr"
     fi
     if [ ! -f "$runshostdir/userdefault" ]; then
-        estep "Création de $(ppath "$runshostdir/userdefault")"
-        echo "$userdefaultt" >"$runshostdir/userdefault"
+        estep "Création de $(ppath "$runshostdir/userdefault.rr")"
+        echo "$userdefaultt" >"$runshostdir/userdefault.rr"
     fi
 
-    [ -n "$edit_default" ] && "${EDITOR:-vi}" "$runshostdir/default"
+    [ -n "$edit_default" ] && "${EDITOR:-vi}" "$runshostdir/default.rr"
 
     return 0
 }
@@ -189,9 +189,9 @@ function __runs_create_rscript() {
         template="$runsconft"
     elif [ "$rscriptname" == "sysinfos.conf" ]; then
         template="$sysinfost"
-    elif [ "$rscriptname" == "default" ]; then
+    elif [ "$rscriptname" == "default" -o "$rscriptname" == "default.rr" ]; then
         template="$defaultt"
-    elif [ "$rscriptname" == "userdefault" ]; then
+    elif [ "$rscriptname" == "userdefault" -o "$rscriptname" == "userdefault.rr" ]; then
         template="$userdefaultt"
     else
         withext "$rscript" || rscript="$rscript.rs"
@@ -241,7 +241,7 @@ function runs_create_rscript() {
             splithost "$host" hostname domain
             for runsdir in "${RUNSHOSTSDIRS[@]}"; do
                 found=
-                for dir in "$runsdir/$host" "$runsdir/$domain/$hostname"; do
+                for dir in "$runsdir/$host/runs" "$runsdir/$domain/$hostname/runs" "$runsdir/$host" "$runsdir/$domain/$hostname"; do
                     if [ -d "$dir" ]; then
                         runsdir="$dir"
                         found=1
@@ -370,6 +370,8 @@ function runs_find_hostfile() {
     splithost "$__runshost" __hostname __domain
     for __runsdir in "${!__runshostsdirs}"; do
         for __runsfile in \
+            "$__runsdir/$__runshost/runs/$__hostfile" \
+            "$__runsdir/$__domain/$__hostname/runs/$__hostfile"\
             "$__runsdir/$__runshost/$__hostfile" \
             "$__runsdir/$__domain/$__hostname/$__hostfile"; do
             if [ -e "$__runsfile" ]; then
@@ -417,6 +419,8 @@ function runs_find_datafile() {
         splithost "$__runshost" __hostname __domain
         for __runsdir in "${!__runshostsdirs}"; do
             for __runsfile in \
+                "$__runsdir/$__runshost/runs/$__datafile" \
+                "$__runsdir/$__domain/$__hostname/runs/$__datafile"\
                 "$__runsdir/$__runshost/$__datafile" \
                 "$__runsdir/$__domain/$__hostname/$__datafile"; do
                 if [ -e "$__runsfile" ]; then
@@ -475,6 +479,8 @@ function runs_find_scriptfile() {
     # initialiser les variables RUNSDIR, RUNSSCRIPT, RUNSSCRIPTDIR,
     # RUNSSCRIPTNAME, RUNSDIRPATH et RUNSSCRIPTPATH. Retourner 0 en cas de
     # succès, 1 en cas d'échec.
+    # $6 vaut ".rs" par défaut est c'est une extension à rajouter au nom
+    # spécifié si le fichier sans l'extension n'existe pas
     # RUNSDIR est le répertoire dans lequel a été trouvé le script (parmi les
     # valeurs fournies dans les tableaux RUNSSCRIPTSDIRS, RUNSMODULESDIRS,
     # RUNSHOSTSDIRS), RUNSDIRPATH est le répertoire à partir duquel est exprimé
@@ -489,6 +495,7 @@ function runs_find_scriptfile() {
     local __runsscriptsdirs="${3:-RUNSSCRIPTSDIRS}[@]"
     local __runsmodulesdirs="${4:-RUNSMODULESDIRS}[@]"
     local __runshostsdirs="${5:-RUNSHOSTSDIRS}[@]"
+    local __runsext="${6:-.rs}"
     local __domain __hostname
     local __runsdir __runsfile
 
@@ -497,10 +504,12 @@ function runs_find_scriptfile() {
         splithost "$__runshost" __hostname __domain
         for __runsdir in "${!__runshostsdirs}"; do
             for __runsfile in \
+                "$__runsdir/$__runshost/runs/$__scriptfile" \
+                "$__runsdir/$__domain/$__hostname/runs/$__scriptfile" \
                 "$__runsdir/$__runshost/$__scriptfile" \
                 "$__runsdir/$__domain/$__hostname/$__scriptfile"; do
-                if [ ! -f "$__runsfile" -a -f "$__runsfile.rs" ]; then
-                    __runsfile="$__runsfile.rs"
+                if [ "${__runsfile%$__runsext}" == "$__runsfile" ]; then
+                    [ ! -f "$__runsfile" -a -f "$__runsfile$__runsext" ] && __runsfile="$__runsfile$__runsext"
                 fi
                 if [ -e "$__runsfile" ]; then
                     runs_initvars "$__runsfile" "$__runsdir" "$__runsdirpath" "$__scriptfile"
@@ -512,8 +521,8 @@ function runs_find_scriptfile() {
     # puis chercher dans les répertoires des scripts et des modules
     for __runsdir in "${!__runsscriptsdirs}" "${!__runsmodulesdirs}"; do
         __runsfile="$__runsdir/$__scriptfile"
-        if [ ! -f "$__runsfile" -a -f "$__runsfile.rs" ]; then
-            __runsfile="$__runsfile.rs"
+        if [ "${__runsfile%$__runsext}" == "$__runsfile" ]; then
+            [ ! -f "$__runsfile" -a -f "$__runsfile$__runsext" ] && __runsfile="$__runsfile$__runsext"
         fi
         if [ -e "$__runsfile" ]; then
             runs_initvars "$__runsfile" "$__runsdir" "$__runsdir" "$__scriptfile"
@@ -541,6 +550,16 @@ function runs_find_scriptfile_reverse() {
     if [ -n "$__runshost" ]; then
         splithost "$__runshost" __hostname __domain
         for __runsdir in "${!__runshostsdirs}"; do
+            __prefix="$__runsdir/$__runshost/runs/"
+            if [ "${__runsscript#$__prefix}" != "$__runsscript" ]; then
+                runs_initvars "$__runsscript" "$__runsdir" "$__prefix" "${__runsscript#$__prefix/}"
+                return 0
+            fi
+            __prefix="$__runsdir/$__domain/$__hostname/runs/"
+            if [ "${__runsscript#$__prefix}" != "$__runsscript" ]; then
+                runs_initvars "$__runsscript" "$__runsdir" "$__prefix" "${__runsscript#$__prefix/}"
+                return 0
+            fi
             __prefix="$__runsdir/$__runshost/"
             if [ "${__runsscript#$__prefix}" != "$__runsscript" ]; then
                 runs_initvars "$__runsscript" "$__runsdir" "$__prefix" "${__runsscript#$__prefix/}"
@@ -613,11 +632,26 @@ function runs_recipe() {
     recipe="$(abspath "$1")"
     if [ -d "$recipe" ]; then
         if is_root; then
-            recipe="$recipe/default"
+            if [ -f "$recipe/default.rr" ]; then
+                recipe="$recipe/default.rr"
+            elif [ -f "$recipe/default" ]; then
+                recipe="$recipe/default"
+            else
+                recipe="$recipe/default.rr"
+            fi
         else
-            recipe="$recipe/userdefault"
+            if [ -f "$recipe/userdefault.rr" ]; then
+                recipe="$recipe/userdefault.rr"
+            elif [ -f "$recipe/userdefault" ]; then
+                recipe="$recipe/userdefault"
+            else
+                recipe="$recipe/userdefault.rr"
+            fi
         fi
     fi
+    if [ "${recipe%.rr}" == "$recipe" ]; then
+        [ ! -f "$recipe" -a -f "$recipe.rr" ] && recipe="$recipe.rr"
+    fi
     if [ ! -f "$recipe" ]; then
         eerror "$(ppath "$recipe"): fichier introuvable"
         return 1
@@ -708,7 +742,7 @@ function runs_recipepath() {
     # pas été trouvé, sinon retourner la valeur de retour de runs_recipe()
     local RUNSDIR RUNSSCRIPT RUNSSCRIPTDIR RUNSSCRIPTNAME RUNSDIRPATH RUNSSCRIPTPATH
     local RUNSSCRIPTSDIRS RUNSMODULESDIRS RUNSHOSTSDIRS; __runs_setpath
-    if ! runs_find_scriptfile "$1"; then
+    if ! runs_find_scriptfile "$1" "" "" "" "" ".rr"; then
         eerror "$1: fichier introuvable. Vérifiez les valeurs suivantes:
 RUNSSCRIPTSPATH=$RUNSSCRIPTSPATH
 RUNSMODULESPATH=$RUNSMODULESPATH
diff --git a/runs b/runs
index 9fdea23..329c09c 100755
--- a/runs
+++ b/runs
@@ -277,6 +277,8 @@ elif [ "$action" == "list" ]; then
     rscriptpaths=()
     if [ -n "$runshost" ]; then
         for runsdir in "${RUNSHOSTSDIRS[@]}"; do
+            find_items rscriptpaths "$runsdir/$runshost/runs"
+            find_items rscriptpaths "$runsdir/$domain/$hostname/runs"
             find_items rscriptpaths "$runsdir/$runshost"
             find_items rscriptpaths "$runsdir/$domain/$hostname"
         done