Update shell-and-data-access.md

docs.it4i/general/shell-and-data-access.md

@@ -175,7 +175,7 @@ Enter passphrase for /home/user/.ssh/id_rsa:
 Then run the rsync in parallel:
 
 ```console
-ls my-local-dir | xargs -I% -n 2 -P 4 rsync % username@cluster-name.it4i.cz:directory/.
+local $ ls my-local-dir | xargs -I% -n 2 -P 4 rsync % username@cluster-name.it4i.cz:directory/.
 ```
 
 The -n XXX argument determines how many files will be transfered per single rsync process. The -P YYY argument