making a file executable

Security risk

Take care to only use executable files from reputable sources.

In Kubuntu, use chmod +x foo.bar, where foo.bar is the file to be made executable or, alternatively, use Context Menu > Properties > Permissions > Is executable. To run the program, use ./foo.bar, where foo.bar is the file that has been made executable.

licensing

No rights reserved: CC0 1.0.

prior work

The method of making a file executable using chmod was introduced to me by an answer on Stack Overflow by fge.