使用jq解析Launchd中的JSON [英] Using jq to parse JSON in launchd

问题描述

我有一个shell脚本，该脚本评估充满JSON文件的文件夹，该文件夹在直接调用时运行良好，但从启动运行时失败.具体来说，启动在此行失败:

I have a shell script that evaluates a folder full of JSON files which runs fine when invoked directly but fails when run from launchd. Specifically, launchd fails on this line:

current_file_snapshots=$(cat $current_file | jq '.snapshots | length')

因为:

jq: command not found

我浏览了jq文档以弄清楚这一点，但是没有提到这个问题.我还无法弄清楚如何使jq(或任何类似的第三方工具)通过启动工作.

I looked through the jq docs to figure this out, but there's no mention of this problem. I haven't been able to figure out how to get jq (or any similar third party tool) to work through launchd.

谢谢！

推荐答案

嗯，看来我假设launchd与普通的bash shell共享相同的PATH.明确指出JQ住的地方似乎可行:

Ahh, looks like I assumed that launchd shared the same PATHs as my normal bash shell. Explicitly spelling out where JQ lives seemed to work:

因此，我在文件的顶部添加了

So at the top of the file I added:

JQ=/usr/local/bin/jq

并将所有'jq'实例替换为:

and replaced all instances of 'jq' with:

$JQ

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