How does the SUID or setuid affect executable commands?

In order to extract text from the first column of file called textfile, which command would you use?

What is the keyboard shortcut to call up the Bash history search as shown below? (reverse-i-search)`':

Which arithmetic expression will give the most precise answer?

What is the result of this script? txt=Penguins [[ $txt =~ [a-z]{8} ]]; echo $?

How would you change your Bash shell prompt to the following? HAL>

Wich operator sends the output of ls to a file for later use?

How can you create a shared terminal in a Bash shell?

To make a Bash script named script.sh executable, what should you run?

Which sed options should you use to change the second-to-last instance of variable to rock so it would read: A constant is a variable that is a rock that isn't variable var="A constant is a variable that is a variable that isn't variable" echo "$var" | sed _____

Which does the below command do? w