求牛人帮助

小弟是菜鸟 在用fedora16（虚拟机）装ROI_PAC_3_0_1时写入环境变量文件在运行时出现bash: sar1:行51: 语法错误: 未预期的文件结尾这是什么原因
代码如下

#!/bin/bash

# this is the default environment setting that should be

# sourced in ones .login. This version is set to be

# the default from the master directory

#export SAR_PRC_DIR="/home/fedora/spm/ROI_PAC_3_0_1/test-runs/ifort/TEST_DIR/PRC"



MACH='uname -s'

if [ "$MACH"="Darwin" ]; then

ARCHC="MAC"

fi



#export SAR="/home/fedora/spm/install/ROI_PAC_3_0_1"

export SAR="/home/fedora/spm/ROI_PAC_3_0_1"

export ROI_PAC="$SAR/ROI_PAC"



#export FFTW_LIB_DIR="/home/fedora/spm/install/ROI_PAC_3_0/ROI_PAC/NetInst/fftw-090625-0108/lib"

#export FFTW_INC_DIR="/home/fedora/spm/install/ROI_PAC_3_0/ROI_PAC/NetInst/fftw-090625-0108/include"

export FFTW_LIB_DIR="/home/fedora/spm/ROI_PAC_3_0_1/ROI_PAC/NetInst/fftw-101231-1541/lib"

export FFTW_INC_DIR="/home/fedora/spm/ROI_PAC_3_0_1/ROI_PAC/NetInst/fftw-101231-1541/include"



#export MDX="/home/fedora/spm/install/mdx/good"



#export INT_LIB="/home/fedora/spm/install/ROI_PAC_3_0_1/ROI_PAC/LIB/src"

#export INT_BIN="/home/fedora/spm/install/ROI_PAC_3_0_1/ROI_PAC/INT_BIN"

#export INT_SCR="/home/fedora/spm/install/ROI_PAC_3_0_1/ROI_PAC/INT_SCR"

#export MY_BIN="/home/fedora/spm/install/ROI_PAC_3_0_1/ROI_PAC/MY_BIN"

#export INT_LIB="/home/fedora/spm/asar1/ROI_PAC_3_0_1/ROI_PAC/LIB/src"

#export INT_BIN="/home/fedora/spm/asar1/ROI_PAC_3_0_1/ROI_PAC/INT_BIN"

#export INT_SCR="/home/fedora/spm/asar1/ROI_PAC_3_0_1/ROI_PAC/INT_SCR"

#export MY_BIN="/home/fedora/spm/install/ROI_PAC_3_0_1/ROI_PAC/MY_BIN"



#export SAR_TAPE="/dev/rmt/0mn"



# MY STUFF

#export MY_PERL="/home/fedora/spm/ROI_PAC_3_0_1/ROI_PAC/INT_SCR"

#export MY_SCR="/home/fedora/spm/ROI_PAC_3_0_1/ROI_PAC/multibuild-080406-0344/installs/shared/roi_pac"

#export MY_BIN="/home/fedora/spm/ROI_PAC_3_0_1/ROI_PAC/INT_BIN"



#Envisat

export INS_DIR="/home/fedora/spm/data/ins1"

export VOR_DIR="/home/fedora/spm/data/VOR"



# ERS1 and ERS2

#export SAR_PRC_DIR="/home/fedora/spm/install/ROI_PAC_3_0_1/ROI_PAC/test/PRC"

#export SAR_ODR_DIR="/mnt/r2/ERS/ODR"





#export SAR_TAPE="/dev/rmt/0mn"

export PATH="$PATH"
求牛人解达 谢谢