Cont: Fix datamover commands

doc.zih.tu-dresden.de/docs/jobs_and_resources/barnard_test.md

@@ -219,7 +219,7 @@ target filesystems.
         metadata system will update the correspoding entries).
 
         ```console
-        marie@barnard$ dtmove /data/horse/lustre/scratch2/0/marie-numbercrunch /data/horse/ws/marie-numbercrunch
+        marie@barnard$ dtmv /data/horse/lustre/scratch2/0/marie-numbercrunch /data/horse/ws/marie-numbercrunch
         ```
 
     === "Source: old `/ssd`"
@@ -229,17 +229,17 @@ target filesystems.
         looks like
 
         ```console
-        marie@barnard$ dtcopy --recursive /data/old/lustre/ssd/ws/marie-numbercrunch /data/horse/ws/marie-numbercrunch
+        marie@barnard$ dtcp --recursive /data/old/lustre/ssd/ws/marie-numbercrunch /data/horse/ws/marie-numbercrunch
         ```
 
     === "Source: old `/beegfs`"
 
         The old `beegfs` filesystem is mounted at `/data/old/beegfs` on the datamover nodes and the
         workspaces are within the subdirectories `ws/0` and `ws/1`, respectively. A corresponding
-        data transfer using `dtcopy` looks like
+        data transfer using `dtcp` looks like
 
         ```console
-        marie@barnard$ dtcopy --recursive /data/old/beegfs/ws/0/marie-numbercrunch /data/horse/ws/marie-numbercrunch
+        marie@barnard$ dtcp --recursive /data/old/beegfs/ws/0/marie-numbercrunch /data/horse/ws/marie-numbercrunch
         ```
 
 ??? "Migration to `/data/walrus`"
@@ -251,7 +251,7 @@ target filesystems.
         corresponding data transfer using `dtcopy` looks like
 
         ```console
-        marie@barnard$ dtcopy --recursive /data/old/lustre/scratch2/ws/0/marie-numbercrunch /data/walrus/ws/marie-numbercrunch
+        marie@barnard$ dtcp --recursive /data/old/lustre/scratch2/ws/0/marie-numbercrunch /data/walrus/ws/marie-numbercrunch
         ```
 
     === "Source: old `/ssd`"
@@ -261,7 +261,7 @@ target filesystems.
         looks like
 
         ```console
-        marie@barnard$ dtcopy --recursive /data/old/lustre/ssd/ /data/walrus/ws/marie-numbercrunch
+        marie@barnard$ dtcp --recursive /data/old/lustre/ssd/ /data/walrus/ws/marie-numbercrunch
         ```
 
     === "Source: old `/beegfs`"
@@ -271,7 +271,7 @@ target filesystems.
         data transfer using `dtcopy` looks like
 
         ```console
-        marie@barnard$ dtcopy --recursive /data/old/beegfs/ws/0/marie-numbercrunch /data/walrus/ws/marie-numbercrunch
+        marie@barnard$ dtcp --recursive /data/old/beegfs/ws/0/marie-numbercrunch /data/walrus/ws/marie-numbercrunch
         ```
 
 ??? "Migration from `/lustre/ssd` or `/beegfs`"