route add command does not work on bash script

Question

I have some route add commands to run on Ubuntu. It works when I copy the command and paste it on the terminal. But I've tried to create a bash script which looks something like this

#!/bin/bash

sudo route add -net 'someIp' netmask 255.255.0.0 gw 'anotherIp' 
sudo route add -net 'someOtherIp' netmask 255.255.0.0 gw 'anotherIp'

But when I run it. the output is:

SIOCADDRT: Dispositivo inexistente

which can be translated to SIOCADDRT: device does not exist

I've run chmod +x on the file and tried running the script with sudo but it did not work.

What am I missing?

Answer 1

After a few days, I finally found the problem. At first, I hadn't added the #!/bin/bash to the script, but after I added it, it was still not working. Then I found this post(in Portuguese) explaining that the problem could be some invisible characters on the file, which makes sense because I had converted it from a .bat file manually. So I just had to run sed -i 's/\r$//' routes.sh and everything started working.