在 Mac 上开始使用 cronjobs [英] Getting started with cronjobs on a Mac

问题描述

我正在尝试熟悉 cron 作业，并且我想我了解了基本概念(调度、语法等)，但是，我似乎无法在我的 mac 上用终端正确地完成它 - 到底在哪里做我找到了Crontab?我应该如何引用脚本的路径?

I'm trying to get familiar with cron jobs, and I think I get the basic idea (scheduling, syntax, etc), But, I can't seem to get it right on my mac with Terminal - where exactly do I find the Crontab? How should I reference the paths to scripts?

我想要做的是在远程机器上运行一个 php 脚本(http://...)- 这可能吗?

What I'm trying to do is hit a php script on a remote machine (http://...) - Is that possible at all?

推荐答案

要开始使用 launchd(而不是 cron)，您需要先创建一个空的 .plist 文件，例如 local.mytask.plist 并将其放在某处.~/Library/LaunchAgents 可能是个好地方.在文本编辑器中打开并复制下面的代码

To get started with launchd (instead of cron) you'll want to first create an empty .plist file, for example local.mytask.plist and put it somewhere. ~/Library/LaunchAgents is probably a good place. Open that in text editor and copy in the code below

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>KeepAlive</key>
<false/>
<key>Label</key>
<string>local.mytask</string>
<key>ProgramArguments</key>
<array>
<string>/opt/local/bin/wget</string>
<string>http://someserver/somepage.php</string>
</array>
<key>StartInterval</key>
<integer>300</integer>
<key>RunAtLoad</key>
<true />
<key>StandardErrorPath</key>
<string>/dev/null</string>
<key>StandardOutPath</key>
<string>/dev/null</string>
</dict>
</plist>

然后从命令行激活"文件:

Then "activate" the file from the command line:

sudo launchctl load /Users/my_username/Library/LaunchAgents/local.mytask.plist

为了让它自动加载，创建一个 ~/.launchd.conf 文件与同一行(减去 sudo launch)

To make it load automatically, create a ~/.launchd.conf file with the same line (minus sudo launch)

load /Users/my_username/Library/LaunchAgents/local.mytask.plist

以上说明复制自 www.davidlanier.com 并在此处重新发布供您参考.

The above instructions above have been copied from www.davidlanier.com and reposted here for your reference.

这篇关于在 Mac 上开始使用 cronjobs的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！