This is a Linux Bash script.

Write a complete Bash script which will receive a list of parameters that are supposed to be filenames, and will iterate through the list, and for every parameter that is a valid filename (that is, an existing, regular file), will test to see if the file’s permissions are both writable and executable and if so, change the file’s permissions to 755. Assume the files are all owned by the user who runs the script so that there will be no permission errors. If no parameters are supplied, output a warning message.