install GD.pm Warning: Cannot install GD.pm, don't know what it is. Try the command perl -MCPAN -e 'install "GD"'. Unknown shell command 'perl'. Type ? for help. install GD Running install for module 'GD' Running make for L/LD/LDS/GD-2.46.tar.gz Catching error: 'mkdir /Users/xyz/.cpan/sources/authors/id/L/LD: Permission denied at /System/Library/Perl/5.10.0/CPAN.pm line 4117 ' at /System/Library/Perl/5.10.0/CPAN.pm line 281 CPAN::shell() called at -e line 1