Perl 命令的用法

cetzhbo

hi, I got some perl statement in ETL loading script, please help me for the usage of perl primarily. thank you very much:

current_s=$(/usr/bin/perl -e 'print time();')

lTime=$(/usr/bin/perl -e '$h=int($ARGV[0]/3600)%24;$m=int($ARGV[0]/60)%60;$s=int($ARGV[0]%60);print sprintf("%02d:%02d:%02d",$h,$m,$s)' $timeDiff)


above are two example without relationship.

sakulagi

Please be specific and detailed. What kind of usage you want to know about Perl? Syntax? Semantic? Options?