i downloaded this program called BYOND http://www.byond.com and ive done everything needed except to this part where i have to deal with this byond setup file. the readme files do not explain what command to use to deal with this file. this is its contents:

#sh compatible environment settings (comment out to dissable)
export BYOND_SYSTEM=/home/ahmad/byond
export PATH=/home/ahmad/byond/bin:$PATH
export LD_LIBRARY_PATH=/home/ahmad/byond/bin:$LD_LIBRARY_PATH
export MANPATH=/home/ahmad/byond/man:$MANPATH

#csh compatible environment settings (uncomment to enable)
#setenv BYOND_SYSTEM /home/ahmad/byond
#setenv PATH /home/ahmad/byond/bin:$PATH
#setenv MANPATH /home/ahmad/byond/man:$MANPATH
#setenv LD_LIBRARY_PATH /home/ahmad/byond/bin:$LD_LIBRARY_PATH


any suggestions?

hmm, this just seems like an shell script that sets some environment variables, just make it executable (chmod u+x filename) and execute it (./filename).