for: add page (#7442)

pages/windows/for.md

@@ -0,0 +1,24 @@
+# for
+
+> Conditionally execute a command several times.
+> More information: <https://docs.microsoft.com/windows-server/administration/windows-commands/for>.
+
+- Execute the specified commands for the specified set:
+
+`for %{{variable}} in ({{item_a item_b item_c}}) do ({{echo Loop is executed}})`
+
+- Iterate over range:
+
+`for /l %{{variable}} in ({{from}}, {{step}}, {{to}}) do ({{echo Loop is executed}})`
+
+- Iterate over files:
+
+`for %{{variable}} in ({{file_a.ext file_b.ext file_c.ext}}) do ({{echo Loop is executed}})`
+
+- Iterate over directories:
+
+`for /d %{{variable}} in ({{directory_a/ directory_b/ directory_c/}}) do ({{echo Loop is executed}})`
+
+- Perform a command in every directory:
+
+`for /d %{{variable}} in (*) do (if exist %{{variable}} {{echo Loop is executed}})`