export PERL_LOCAL_LIB_ROOT="/home/$username/perl";
export PERL_MB_OPT="--install_base /home/$username/perl";
export PERL_MM_OPT="INSTALL_BASE=/home/$username/perl";
export PERL5LIB="/home/$username/perl/share/perl/custom_lib/:/home/$username/perl/lib/perl/custom_lib/";
export PATH="/home/$username/perl/bin:$PATH";