Modify donya.sh

[khuei]

• Use $(...) instead of legacy `...`
• Use brace expansion to create directories
• Specify location for wget to download to
• Make sure directory is created before extracting tarball to it
• Exit script if cannot cd to directory
• Use heredoc to create init script
• Only chmod after append commmand to init successfully
• Correct typo Finsihed to Finished

[BaseMax]

Hi, Thank you.

We need your help more than past. (Bash Script) You can be one of the main members.

CC @sudo-corvus Please merge it. 👌 -- Regards, Max