linux中各种文件
1.linux周期性任务执行:cron系统cron: 文件:/etc/crontab用户cron: 文件:/var/spool/cron/Username
Can't open /var/run/atd.pid to signal atd. No atd running?
1〉产生问题前所作的操作:[root@localhost ~]# at now +2minutesat> echo 'hello'at> <EOT>job 7 at 2012-05-10 17:23Can't open /var/run/atd.pid to signal atd. No atd running? 2〉错误分析...