Which ofthe following commands creates an archive filework.tarfrom the contents of the directory./ work/?

Which statements about the directory /etc/skel are correct? (Choose two.)

The file script.sh in the current directory contains the following content:
#!/bin/bash echo $MYVAR
The following commands are used to execute this script:
MYVAR=value
./script.sh
The result is an empty line instead of the content of the variable MYVAR. How should MYVAR be set in order to make script.sh display the content of MYVAR?

What is the UID of the user root?

FILL BLANK
What keyword is used in a shell script to begin a loop? (Specify one keyword only, without any additional information.)