linux - what's the difference between ./script.sh and bash script.sh

Question

On linux system, is there any difference to kick of script.sh in these two different ways?

Are they exactly the same thing?

Thanks

Answer 1

./script.sh expects that this file is in the current directory, has execute bit set and the first line of the file is path to the interpreter to start with ( Shebang line )

bash script.sh means that you invoke bash and pass the contents of the file to be executed(interpreted) as bash commands. This way your file doesn't need to be executable and has a shebang line.

If the conditions for ./script.sh are met then both invocations lead to the same result.