2014 02 24 技术 Linux 'date' Command usage *nix date is quite powerful tool for date manipulation. 12345for idate in `seq 0 1461`do thedate=`date +%Y%m%d -d "20100101 + $idate"` echo $thedatedone etc. Newer 轻松并发执行作业--GNU Parallel Older Restrict sftp-server concurrent connections