RMAN Error

Dear All,

I am getting the following error while executing rman.

 [oracle@test scripts]$ /testdb/app/oracle/product/11.2.0/dbhome_1/bin/rman cmdfile="/testdb/clone_scripts/rman.rmn" using $latest_ctl_file $DATE log="/testdb/clone_scripts/rman.log"

Argument     Value          Description

-----------------------------------------------------------------------------

target       quoted-string  connect-string for target database

catalog      quoted-string  connect-string for recovery catalog

nocatalog    none           if specified, then no recovery catalog

cmdfile      quoted-string  name of input command file

log          quoted-string  name of output message log file

trace        quoted-string  name of output debugging message log file

append       none           if specified, log is opened in append mode

debug        optional-args  activate debugging