What flag makes "ls -l" print file sizes in human readable format (e.g. 1K, 231M, 2G, etc)?

Why hasn't ZFS been added to the Linux kernel?

Is it possible to increase SWAP space without rebooting?

To report the amount of free disk space available on all mounted file systems you use the command:

command1 | command2 will?

what makes the command 'netstat -s'

When a user deletes a file using the rm command, Linux will _.

Why is the passwd command able to modify the /etc/passwd file?

In the Bash shell, what is the difference between piping into | and piping into |&?

Why doesn't passwd -l keep a user from logging in via other methods?

You are managing an Apache web server on a system using SELinux. By default it cannot read personal webpages in users' home directories. What SELinux boolean would you set to allow this?