To install Log::Log4perl::Layout::PatternLayout::Elapsed, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Log::Log4perl::Layout::PatternLayout::Elapsed
CPAN shell
perl -MCPAN -e shell
install Log::Log4perl::Layout::PatternLayout::Elapsed
For more information on module installation, please visit the detailed CPAN module installation guide.