Do one thing at a time, and do well.
1.基本格式
* * * * * command分 時 日 月 周 命令
第1列表示分鐘1～59 每分鐘用*或者 */1表示
第2列表示小時1～23（0表示0點）
第3列表示日期1～31
第4列表示月份1～12
第5列標識號星期0～6（0表示星期天）
第6列要執行的命令
2.在~/bin下建立一個測試檔案 test_cron
內容如下：echo `date` >> time.txt3.修改crontab
crontab -e相關推薦
Do one thing at a time, and do well.
1.基本格式 * * * * * command 分 時 日 月 周 命令 第1列表示分鐘1～59 每分鐘用*或者 */1表示 第2列表示小時1～23（0表示0點） 第3列表示日期1～31 第4列表示月份1～12 第5列標識號星期0～6（0表示星期天） 第6列要執
效率提升最重要的原則 - Doing one thing at a time
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