install problem

I am using SuSE 8.0 Professional Linux and installing
postresql 7.4 by placing the tar files in /temp and
untar and unzip and followed the short install
procedure.
Log in as root
./ configure
gmake
gmake install
useradd
mkdir /usr/local/pgsql/data
chown postgres /usr/local/pgsql/data
su postgres
/usr/local/pgsql/bin/initdb -D /usr/local/pgsql/data
""same as above"" >logfile 2>&1 &

At this point I checked the last 2 lines to enter and
was told I do not have the password for the postges
sence it is not a person but a program it should not
ask for the password. Have not had sucess to call up
the program or to finish the last 2 lines.
/usr/local/pgsql/bin/createdb test
/usr/local/pgsql/bin/pgsql test

What can I do to finish the last 2 lines and call up
the potgres or pgsql?

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