My .bashrc file and bash_profile are:

# .bashrc

# User specific aliases and functions
declare -x "AMBERHOME=/home/mpiuser/amber8"
declare -x "F90=/opt/intel_fc_80/bin/ifort"
declare -x "F90INC=/opt/intel_fc_80/include"
declare -x "F90LIBPATH=/opt/intel_fc_80/lib"
declare -x "F90LINKER=/opt/intel_fc_80/bin/ifort"
declare -x "RSHCOMMAND=/usr/bin/ssh"
declare -x "DO_PARALLEL=mpirun -np 4"
export AMBERHOME
export F90
export F90INC
export F90LIBPATH
export F90LINKER
export RSHCOMMAND

# Source global definitions
if [ -f /etc/bashrc ]; then
        . /etc/bashrc
fi



bash_profile:

PATH=$PATH:$HOME/bin:/$HOME/mpich-1.2.6/bin:/opt/intel_fc_80/bin:/usr/local/bin:/$cwd
AMBERHOME=/home/mpiuser/amber8
MPICH_HOME=/home/mpiuser/mpich-1.2.6
export PATH
unset USERNAME
export AMBERHOME
export MPICH_HOME

    PATH=/opt/intel_fc_80/bin:$PATH:/home/mpiuser/amber8/exe:
export PATH
    LD_LIBRARY_PATH=/opt/intel_fc_80/lib:$LD_LIBRARY_PATH
 export LD_LIBRARY_PATH
    MANPATH=/opt/intel_fc_80/man:$MANPATH
 export MANPATH
    INTEL_LICENSE_FILE=/opt/intel_fc_80/bin
 export INTEL_LICENSE_FILE