I downloaded the Unix Source from the site

I then did the following:
root#./configure --without-perl

root#make && make install

root#cd PerlMagick

root#perl Makefile.PL

root#make && make install
Then whent hat was done I type:
root#which display
This i guess is supposed to let me know if I have imagemagick installed on the server or not but all I got was:
/usr/bin/which: no display in (/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin)
Please let me know what i'm doing wrong! Or show me how to do it properly! Thanks! i'm Running RedHat9, PHP and MYsql!