Catalina.sh not found, The file is absent or does not have execute permission

I tried to start tomcat 8 through the terminal, but I have an issue related to permissions.

It appears that catalina.sh was not found.

I'm new in Ubuntu, please advise how to solve this.

To see permissions do ls -l.

A file with execute permissions has x in the string at the front. Here's an executable script on my system:

-rwxr-xr-x 1 zanna zanna   7827 Jun 12 07:15 x205ta-iso2zip.sh

Here's one that isn't executable:

-rw-r--r-- 1 zanna zanna  24284 Jun 12 07:15 x205ta-iso2usb.sh

If catalina.sh does not have execute permissions then change the permissions:

chmod +x catalina.sh

Then try again.