cd to the directory calledfinalthat is located within my home directory. When youcatthe file entry calledsga, you get the error message:

cat: sga: No such file or directory

What is it that is causing this error?

sga is a directory.

sga is a link to file that does not exist.

sga does not exist in my directory called final.

The permissions on sga do not allow you to read the file.