At the command line, type
2df230k.sh
and find out what happens.

N.B. An improved version of the final 2dFGRS mask and the corresponding
list of galaxies produced by Andrew Hamilton is available online:
http://space.mit.edu/home/tegmark/mangle/download/data.html

You should be aware that Intel and Sun chips have different endianness.
If your system is having a problem reading unformatted fortran files
maglim.ngp.dat
maglim.ran.dat
maglim.sgp.dat
mask.ngp.dat
mask.ran.dat
mask.sgp.dat
it's probably an endianness problem.
Read HELP.unformatted in the mangle directory.

Alternatively, you can use the formatted versions of these files
maglim.ngp.dat.fmt
maglim.ran.dat.fmt
maglim.sgp.dat.fmt
mask.ngp.dat.fmt
mask.ran.dat.fmt
mask.sgp.dat.fmt
which are available online at
http://space.mit.edu/home/tegmark/mangle/download/data.html