I’m not able to read the output from the cat/etc/issue and use it to check if you are using the tested distro for one of my tools
#!/bin/bash
cat /etc/issue
read distro
echo $distro
if [[ "$distro" = "Debian GNU/Linux bookworm/sid \n \l" ]];
then
echo "You are using Debian"
else
echo "you are not using Debian some things may not work"
fi
>Solution :
cat and read in your current script are completely independent.
Try read distro </etc/issue instead.
That said, grep is probably better suited to figure out if something contains a certain string, and /etc/os-release seems like a better source for what OS you’re running.