The w command shows more than just the current uptime. It shows who is logged in and what they are currently doing. The JCPU is the time used by all processes attached to the terminal and the PCPU shows the time used by the current process in the WHAT column. iostat The iostat comman...
How to Clear BASH Command Line History in Linux Most Commonly Used Linux Commands You Should Know How to Search DuckDuckGo from the Linux Terminal 4 Ways to Find Server Public IP Address in Linux Terminal How to Run Linux Commands in Background and Detach in Terminal...
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Let’s explore the key Linux monitoring tools and methods that will help you maintain peak performance and catch issues early. Table of Contents Key System Metrics That Matter Essential Command-Line Tools top and htop vmstat and free iostat ...
When the Vdbench tool or the dd command is used to test performance, if Direct I/O is not specified, Buffered I/O is used by default. The default page cache size of the Linux is 4 KB. If the specified I/O size is greater than 4 KB, the following symptoms occur: In the kernel...
the lsof command Thelsofcommand will print out a list of every file that is in use. Since Linux considers everythihng a file, this list can be very long. Part 2: Filesystem Usage The df Command df -h, or df -i the du command ...
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CommandDescription nv show platform hardwareShows platform hardware information on the switch, such as the base MAC address, model and manufacturer, memory, Cumulus Linux release, serial number and system MAC address. nv show system cpuShows information about the switch CPU, such as the core-c...
This shows you the username of each person logged in, the time their login was recorded, and their IP address. Thewhocommand also humbly provides the officialPOSIXway of discovering which useryouare logged in as, but only ifutmpexists: ...