empty space in java command through unix

I need to pass an empty space in the command ="java ......... "

as one of the arguments where java calls some java command....
(It accepts it in windows as " ")

Thanks in advance
SD

Hi,
Give a try using the single quote ' '
Thanks
Nagarajan G

Or prefix the space with a backlash. The backslash can be used to escape any character and stops them being interpreted as special by the shell.