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'

What does the 'uname' command do?

What does the $ represent within the context of a shell command?

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?

Ifconfig has been deprecated. What command is now recommended for changing IP addresses in the live config?

When would this system cron job run its task? 0 1 \* \* \*