RMAN checksyntax worth using it

Yesterday I have started RMAN restore and recovery session of my 70 GB Oracle Apps 12.1.3 RAC database in the run block and went to sleep.

When I saw it in the morning, the script got terminated because of some syntax error in the run block. So the whole night has been wasted because of a simple syntax error.

I was checking for any tools in RMAN which can do a syntax check and fortunately I was able to locate the "checksyntax" command which is available from 10g onwards.

One of the powerful commands in RMAN which can be used to check the syntax of big rman scripts which runs for a long time, before start the script we can check the syntax of the script and run it without worrying of the termination of scripts with syntax errors.

Eg:

$ rman checksyntax

Recovery Manager: Release 10.2.0.5.0 - Production on Thu Dec 23 15:21:32 2010

Copyright (c) 1982, 2007, Oracle. All rights reserved.

RMAN>

RMAN> recover data;

RMAN-00571: ===========================================================

RMAN-00569: =======ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-00558: error encountered while parsing input commands

RMAN-01009: syntax error: found "identifier": expecting one of: "copy, clone, database, datafile, datafilecopy, device, standby, tablespace"

RMAN-01008: the bad identifier was: data

RMAN-01007: at line 1 column 9 file: standard input

RMAN-00571: ===========================================================

RMAN-00569: ============ ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-00558: error encountered while parsing input commands

RMAN-01009: syntax error: found ";": expecting one of: "allocate, alter, backup, beginline, blockrecover, catalog, change, connect, copy, convert, create, cross check, configure, duplicate, debug, delete, drop, exit, endinline, flashback, ho st, {, library, list, mount, open, print, quit, recover, register, release, replace, report, renormalize, reset, restore, resync, rman, run, rpctest, set, setlimit, sql, switch, spool, startup, shutdown, send, show, test, transport, upgrade , unregister, validate"

RMAN-01007: at line 1 column 13 file: standard input

RMAN>

RMAN> recover database

2> ;

The command has no syntax errors

RMAN Error on Linux - rman: can't pen rcvcat target or it Just Hangs

You are running RMAN from the command line and the prompt will not return-or-

You receive a error similar to one of the following:
% rman: can't open rcvcat-or-
% rman: can't open target -or-
% rman: can't open nocatalog

Description
--------------------
Ensure that correct RMAN executable is being run by typing
$which rman
The output will most likely show '/usr/bin/rman'Execute RMAN by typing in the following:$ORACLE_HOME/bin/rmanAnother solution is to add $ORACLE_HOME/bin before /usr/bin in the PATH environment variable

Explanation
-----------
Under a default REDHAT LINUX install, a KDE program called rman (a fileviewing / editing program) is installed under /usr/bin. If this is listedprior to $ORACLE_HOME/bin in the users PATH environment then it iscalled instead of Oracle RMAN.