Other programming languages • Re: Trying script to get motionEye alerts on Telegram

Where does '/' come into this ?
That is called a forwardslash on Linux, while the '\' is called a backslash.

If you write a bash script, you can declare and set a variable with something like:

Code:

user_name="hortimech"

Which you can print with:

Code:

echo "username = $user_name"

Which should produce:

Code:

username = hortimech

But, if you change the code to:

Code:

echo "$user_name = $user_name"

That will produce:

Code:

hortimech = hortimech

and if you add the escape character '\' like this:

Code:

echo "\$user_name = $user_name"

you will get this:

Code:

$user_name = hortimech

And writing all this, I realised what is happening

You are sending the message to a function which uses printf to print it, printf works very similar to 'echo', so it gets "DATE - $user_name is hortimech" and tries to expand '$user_name", which, because it isn't set as a local variable, it does. I still do not see why this stops your script from working. This is mainly because I do not know just how the script is being called.

/home/my_username/.config/motioneye-telegram/bin/motion-send.sh %$ %t

Statistics: Posted by Raspbop — Mon Jan 26, 2026 10:31 pm