RMAN Hangs when executing

Question

Hello friends,
I am running Oracle 9i R2 on RHEL4 32bit,
Hardware HP ProLiant servers
Just today i installed this setup, and database is doing fine.
Except of RMAN
When i run rman command on the UNix prompt... it just hangs. nothing comes out of it.
Neither do i see any error.. nor do i see any exit prompt. It just gets stuck after i type rman and hit enter.
Pls help.

Answer 1

I am putting up the entire content of the bash profile from the top to the bottom... just incase i messed up with something somewhere.
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/bin
# Set the LD_ASSUME_KERNEL environment variable only for Red Hat 9,
# RHEL AS 3, and RHEL AS 4 !!
# Use the "Linuxthreads with floating stacks" implementation instead of NPTL:
export LD_ASSUME_KERNEL=2.4.1 # for RH 9 and RHEL AS 3
export LD_ASSUME_KERNEL=2.4.19 # for RHEL AS 4
# Oracle Environment
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/9.2.0
export ORACLE_SID=hp001
export ORACLE_TERM=xterm
# export TNS_ADMIN= Set if sqlnet.ora, tnsnames.ora, etc. are not in $ORACLE_HOME/network/admin
export NLS_LANG=AMERICAN;
export ORA_NLS33=$ORACLE_HOME/ocommon/nls/admin/data
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
export LD_LIBRARY_PATH
# Set shell search paths
export PATH=$PATH:$ORACLE_HOME/bin
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib
CLASSPATH=$CLASSPATH:$ORACLE_HOME/network/jlib
export CLASSPATH
export PATH
unset USERNAME