如何每天在Mac Os X中运行Shell脚本？

Question

I am using Mac Os x. I have an shell script and i want to run this automatically daily for given time. Is there anyway to do this without using third party tool.

Answer 1

Yes of course, you can use crontab!

Firstly open the terminal, then launch crontab with:

crontab -e

In some cases you need to specify the editor (es.nano) like this:

env EDITOR=nano crontab -e

Now you can add your daily script at 3am like this:

0  3  *  *  *  sh /path/to/your/file

The format is:

min  hour  day_of_month  month  day_of_week  your_command

After save the cron, you can check the crontab list whit:

crontab -l

And if you want remove it with:

crontab -r

Answer 2

You can do this via LaunchDaemons

Just create a file with below syntax and put on /Library/LaunchDaemons/ and save it in .plist

now script will run every 13:30 Hours - you can change time what ever you want

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>COM.COMPANY.LOGGER</string>
    <key>ProgramArguments</key>
    <array>
        <string>YOUR-SCRIPT-LOCATION</string>
    </array>
    <key>StartCalendarInterval</key>
    <dict>
          <key>Hour</key>
          <integer>13</integer>
          <key>Minute</key>
          <integer>15</integer>
    </dict>
</dict>
</plist>