Invoking sof2flash

I'd like to run sof2flash from command line in a Cygwin Shell.

In my script, I have

# !/bin/sh -x

export SOPC_KIT_NIOS2='c:\win\altera\72\nios2eds'

WRK_DIR="/c/home/wrk/fpga/nios"

SOF_FILE='C:/Home/wrk/fpga/Source/top.sof'

SOF_FLASH='C:/images/top.flash'

# Creating .flash file for the FPGA configuration

"$SOPC_KIT_NIOS2/bin/sof2flash" --epcs --input=$SOF_FILE --output=$SOF_FLASH

# ------ End of script ------------------

When I run this script, I get

[bin$:501] update-nios.sh

+ export 'SOPC_KIT_NIOS2=c:\win\altera\72\nios2eds'

+ SOPC_KIT_NIOS2='c:\win\altera\72\nios2eds'

+ WRK_DIR=/c/home/wrk/fpga/nios

+ SOF_FILE=C:/Home/wrk/fpga/Source/top.sof

+ SOF_FLASH=C:/images/top.flash

+ 'c:\win\altera\72\nios2eds/bin/sof2flash' --epcs --input=C:/Home/wrk/fpga/Source/top.sof --output=C:/gac2500/images/top.flash

: No such file or directoryin/sof2flash: line 2: c:\win\altera\72\nios2eds/bin/sh_jar.sh

Looks like it cannot find sh_jar.sh, but

[bin$:502] pwd

/c/win/altera/72/nios2eds/bin

[bin$:504] ls sh*

sh_jar.sh sh_launch.pm sh_pl.sh

[bin$:505]

I am trying to run in a normal Cygwin Shell (Not Altera's Cygwin) but that

should not matter. I did run dos2unix on the .sh files.