diff --git a/virsh.md b/virsh.md
index d65688c..5b47409 100644
--- a/virsh.md
+++ b/virsh.md
@@ -1,4 +1,5 @@
-##virsh usefull command
+## virsh usefull command
+### standart
 
 - recover configuration xml from VM:  `virsh dumpxml windows7> windows7.xml`
 - start VM: `virsh start nas`
@@ -6,4 +7,12 @@
 - rename VM: `virsh domrename --domain generic2 --new-name windows7`
 - list all vm: `virsh list --all`
 - create with xml file:`create --file debian8.xml`
+
+
+### snapshot:
+- list for domain  `virsh snapshot-list --domain nas`
+- create snapshot `virsh snapshot-create-as --domain {VM-NAME} --name {SNAPSHOT-NAME} --live `
+- info snapshot: ` virsh snapshot-info --domain nas --snapshotname "ansible ping OK" `
+- appliquer une snapshot: `virsh snapshot-revert --domain --snapshotname "ansible ping OK" --running`
+- delete snapshot: `virsh snapshot-delete --domain freebsd --snapshotname 5Sep2016_S2`
 - 
\ No newline at end of file