[ Thanks to Ken Hess
for this link. ]
“System Administrators (SAs) have a tough job: Dealing
with users and user accounts, security, patching, updates,
upgrades, disk space, performance and other miscellaneous tasks
often known as “other duties as assigned.” For some SAs, the day
never ends. Despite the challenges, pitfalls and occasional irate
user; system administration is a fulfilling job with intangible
rewards like no other position in IT. To assist those weary SAs in
their quest to conquer their Linux systems, I’ve devised this list
of 12 native Linux system monitoring tools that are always at my
fingertips.“Any user may issue these commands, if they exist and haven’t
been protected by the SA. They are harmless and are read-only
commands. The only problem with them is that ordinary users might
inform the SA of a performance problem before the SA knows about it
and that can irritate an overworked SAs nervous system.“1. top – It’s only fitting that at the top of this list, that
you’d see ‘top.’ Top is a diagnostic tool and a real time
monitoring tool. Execute this command to see a running list of the
top system resource consuming processes on a system. Try it for
yourself by typing top at the command prompt. To quit top, press
the ‘q’ key.”