pd-ctl: update the usage of region key (#694)

* update the usage of region key
pingcap · Oct 29, 2018 · 65078f9 · 65078f9
1 parent 567ff4f
commit 65078f9
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/tools/pd-control.md b/tools/pd-control.md
@@ -418,9 +418,9 @@ Usage:
 }
 ```
 
-### `region key [--format=raw|pb|proto|protobuf] <key>`
+### `region key [--format=raw|encode] <key>`
 
-Use this command to query the region that a specific key resides in. It supports the raw and protobuf formats.
+Use this command to query the region that a specific key resides in. It supports the raw and encoding formats. And you need to use single quotes around the key when it is in the encoding format.
 
 Raw format usage (default):
 
@@ -434,10 +434,10 @@ Raw format usage (default):
 }
 ```
 
-Protobuf format usage:
+Encoding format usage:
 
 ```bash
->> region key --format=pb t\200\000\000\000\000\000\000\377\035_r\200\000\000\000\000\377\017U\320\000\000\000\000\000\372
+>> region key --format=encode 't\200\000\000\000\000\000\000\377\035_r\200\000\000\000\000\377\017U\320\000\000\000\000\000\372'
 {
   "region": {
     "id": 2,