Which of the following commands will send output from the program myapp to both stdout and the file file1.txt?
Which of the following sed commands will replace all instances of the string foo with the string foobar changing the file file1.txt in place?
What command will print a list of usernames (first column) and their corresponding user id (uid, third column) from /etc/passwd?
Which of the following commands will resume executing the stopped process while allowing the user to continue to type commands at the command prompt?
What command entered into a bash initialization file will have bash recognize vi keystrokes after login?
Which of the following commands will find the string foo in file1.txt, regardless of foo being in upper or lowercase letters?