To run a copy command in a subshell, which syntax would you use?

Using "awk", what would the output of this command string be? echo "1 2 3" | awk '{for (i=1; i<=NF; i++) s=s+$i};END {print s}'

To permanently remove empty lines from a file called textfile, which command could you use?

Assuming that user1 existed, what would be the result of this command string? awk -F: '/user1/{print $1 "-" $3 "-" $6}' /etc/passwd

What happens if you use the "set -e" in a Bash script?

Which variable contains the process ID (PID) of the script while it's running?

In Bash, what does a # at the end of the default prompt string indicate?

Which statement will print all of the fully qualified .cvs files in the home directory or subdirectories while not displaying any errors?

To assign the command ls -lah to the shortcut command lh, what command should you use?

How can you copy a directory to another system with compression?