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定时任务-crontab简单用法

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HACK1949

By HACK1949,
in ios/Android development

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HACK1949

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定时任务-crontab简单用法

crotab定时任务：

  • 在服务器上设置定时器，来执行特定的任务脚本，比如php XXX或者 python XXX，或者 go run ***

crontab基本用法：
- crontab时间设置：

# 5个时间表示：分别为以下
* * * *：表示：分、时、日、月、周

crontab -e：

  • 添加crontab定时任务，
  • 例如：设置每分钟执行 进入项目目录，并且php artisan命令
# 设置每分钟执行1次该命令
* * * * * cd ~/dnmp/www/ali-php php artisan schedule >> /dev/null 2>&1

crontab -l：
* 列出当前用户的所有定时任务
- crotab -r：
* 删除当前用户的定时任务

备注：

  • 如果crontab -e添加定时任务失败，可能是当前默认编辑器为vi，需要设置为vim，
# 编辑文件，修改默认编辑器：vim ~/.zshrc  (或者.bash_profile)
export EDTTOR=vim

# 然后，source ~/.zshrc，使其生效，再重新crontab -e来添加定时任务
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