Which command shows all of the directories that the shell searches for programs?

Which command will delete the directory foo with all its content?

When creating a new file, what can be done to make the file hidden from the default output
of the ls command?

Which of the following is an example of globbing?

Which of the following is a valid option for a typical command to get its built-in usage
information?

While deleting all files beginning with the letter a there was still the file Access.txt left.
Assuming that it had the correct ownership, why was it not deleted?

Which command line can be used to search help files that mention the word “copy”?

Which command is used to make a shell variable known to subsequently executed
programs?

Which command lists all files in the current directory that start with a capital letter?

Which command shows if /usr/bin is in the current shell search path?