# [Linux]How to use the crontab

Head Pic: 「恋恋 匕首」/「千夜QYS3」[pixiv]

## Introduction

Crontab is a file that schedules commands running any time you want.

The daemon, which is crond, of crontab will check scheduled works every minute.

## Usage

Every user has its own crontab file, which named by its name in /var/spool/cron/crontab.

In this file, every line stands for a task and every field in each line stands for a configuration.

## Sample

The backup.sh will be executed at 03:50 every day.

## Tips

Absolute directory must be used if you run a script.