message file rman.msb not found
verify that oracle_home is set properly
......

standard in must be a tty
......

argument value description----------------
target quoted-string connect-string for target
databasecatalog quoted-string connect-string
for recovery catalognocatalog none if specified,
then no recovery catalogcmdfile quoted-string
name of input command filelog quoted-string
name of output message log filetrace
quoted-string name of output debugging
message log fileappend none if specified,
log is opened in append modedebug optional-args
activate debuggingmsgno none show rman-nnnn prefix
for all messagessend quoted-string send a command
to the media managerpipe string building block for
pipe namestimeout integer number of seconds to wait
for pipe inputchecksyntax none check the
command file for syntax errors-------------
--both single and double quotes (" or ") are accepted
for a quoted-string.quotes are not required unless the
string contains embedded white-space. rman-00571:
=======================================rman-00569: =============== error message stack follows ======rman-00571: ================================
rman-00556: could not open cmdfile "backup_ar.rcv" ......

0 12,18 * * * /home/oracle/bak_sh/backup_ar.sh

export oracle_home=
/home/u01/app/oracle/oracle/product
/10.2.0/db_1export oracle_sid=testexport
lang=en_us.utf-8/home/u01/app/oracle
/oracle/product/10.2.0/db_1/bin/rman cmdfile = backup_ar.rcv

connect target /connect catalog rman/rman
@rmanrun{allocate channel d1 device type
disk;sql "alter system archive log current";
backup archivelog all delete input forma