I use Rocket.Chat internally, but I want to be notified of the result of cron processing on the ubuntu server as a chatbot.
The curl command is issued from Rocket.Chat by the mechanism of Webhook, but I stumbled upon the method of sending the variable created in the shell executed by cron to the chat with the curl command, so I will leave the solution
Receive variables with the curl command so that you can get different results depending on the situation
First, check Rocket.Chat for the basic curl command issued by Webhook
curl -X POST -H 'Content-Type: application/json' --data '{"text":"Example message","attachments":[{"title":"Rocket.Chat","title_link":"https://rocket.chat","text":"Rocket.Chat, the best open source chat","image_url":"https://rocket.chat/images/mockup.png ","color":"#764FA5"}]}' https://〜〜If you want to skip only plain text, write as follows
curl -X POST -H 'Content-Type: application/json' --data '{"text":"hogehoge"}' https://〜〜When using variables, do the following
The conclusion is
['"+"']
Surrounded by
curl -X POST -H 'Content-Type: application/json' --data '{"text":"'"$fuga"'"}' https://〜〜If you want to use fixed statements and variables
curl -X POST -H 'Content-Type: application/json' --data '{"text":"hogehoge'"$fuga"'"}' https://〜〜Like this
It looks awkward, but now you can use it.
Please refer to it if you use it someday.
At first I thought this was only possible when using variables with curl, but
Actually, it seems that it was a method used when you want to reuse variables when writing shell scripts etc.
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