Provide mv wrapper task

tasks/mv.json

@@ -0,0 +1,17 @@
+{
+  "description": "Wrapper task for mv command",
+  "parameters": {
+    "source": {
+      "type": "String",
+      "description": "Current path of file"
+    },
+    "target": {
+      "type": "String",
+      "description": "New path of file"
+    }
+  },
+  "input_method": "environment",
+  "implementations": [
+    {"name": "mv.sh"}
+  ]
+}

tasks/mv.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# This task exists as a convenience for users who need predictable sudo
+# commands without variance to write into their sudoers rules. The only real
+# variable in commands used by peadm is the filename of the PE installer
+# tarball. This task can be used in a pre-plan to homogenize calls to sudo.
+# Rather than literally calling "mv" with a variable filename, the mv.sh task
+# can be called. Inputs come as environment variables so the call doesn't
+# change.
+
+mv "$PT_source" "$PT_target"