Given the following input stream:
txt1.txt
atxt.txt
txtB.txt
Which of the following regular expressions turns this input stream into the following output stream?
txt1.bak.txt
atxt.bak.txt
txtB.bak.txt
s/^.txt/.bak/
Which of the following commands show how the shell handles a specific command?
where
Which of the following commands installs all packages with a name ending with the string foo?
zypper get "*foo"
Which of the following commands is used to change options and positional parameters within a running Bash shell?
history
Which of the following apt-get commands will install the newest versions of all currently installed packages without removing any packages or installing new packages that are not already installed?
