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                                            Gezzy Ramos

Check if tput exists before casting the exec result to an int

Of course, the ideal would be to know why `getWidth()` is returning 0. `tput cols` return 213 Deepin's terminal, edition 15.9.1 Desktop

Check if tput exists before casting the exec result to an int

The problem is in my environment. I have the application in docker and the system used does not have the `tput` command. so the issue can be closed. :D Thank...

Check if tput exists before casting the exec result to an int

Of course, it would be good to inform when the system has not `tput` :)