Which system administration command you can use to update ld.so.cache after the installation of new shared libraries?

You are preparing a new set of shared libraries in /usr/local/applib and you have written and compiled some code that uses these libraries.
You have already performed an ldconfig, however the system still cannot find the shared libraries.
What is most likely the cause of this?

Which of the following commands will provide locale-specific information about your system and its environment?

You installed a beta rpm package (rpmname), but are experiencing some problems with it.
How can you remove this package?

After installing and configuring XFree86, you notice that when you start X, the display is not centered.
What program can you run to find a better modeline setting?

During which stage of the boot process would this message be seen?
ide0: BM-DMA at 0xff00-0xff07, BIOS settings: hda:DMA, hdb:DMA

Which commands will print line numbers before each line in a file?
(Select TWO)

You are running an email server configured with the default settings.
In which directory will you commonly find the delivered mail for the user foo?

Which commands can you use to change a user’s password expiry information?
(Choose THREE correct answers.)