linux lcd panel info free sample

While using LINUX there might come a situation when you are willing to install a new application (big in size) and you wish to know for the amount of free memory available on your system. In LINUX, there exists a command line utility for this and that is freecommand which displays the total amount of free space available along with the amount of memory used and swap memory in the system, and also the buffers used by the kernel.

When no option is used then free command produces the columnar output as shown above where column:total displays the total installed memory (MemTotal and SwapTotal i.e present in /proc/meminfo).

linux lcd panel info free sample

When using the free command, the two important lines are the -/+ buffers/cache line and Swap line. If you want to get a good idea on how much free memory is available, the free section in the buffers/cache is what you should be reading. Linux keeps the contents of memory in the buffers to help having to access the same data over-and-over from the slower disk drive. If your buffers/cache free memory is low or your swap free is low, a memory upgrade is necessary.

linux lcd panel info free sample

Brief: In this guide, we will discuss some useful examples of the screen command. By the end of this guide, users will be able to work with multiple shell sessions using a single Linux terminal window.

As Linux users, we often need to work on long-running tasks, such as – downloading or copying large files, executing time-consuming database queries, and so on. Sometimes these important tasks get terminated abruptly due to a session timeout.

In this guide, we will discuss how to install, configure, and use the screen command on a Linux system. Throughout this guide, we will understand the usage and benefits of the screen command using practical examples.

On my Ubuntu Server Edition, the screen command has been installed by default. But, Linux Mint does not have a screen installed by default, so I need to install it first using the

Sometimes it is important to record what you have done while you are in the console. Let’s say you are a Linux Administrator who manages a lot of Linux servers.

A Password will be asked to you twice. The first password is your Linux password, and the second password is the password that you put in your .screenrc file.

linux lcd panel info free sample

The top command (table of processes) displays the processor activity of your Linux box and also displays tasks managed by the kernel in real-time. It also shows information about CPU and memory utilization of a list of running processes.

To list all running Linux Processes, simply type top on the command line to get the information of running tasks, memory, cpu, and swap. Press ‘q‘ to quit window.

linux lcd panel info free sample

There are many situations when you need to obtain information about your Linux system, whether it"s hardware, embedded software such as the BIOS, or how they relate to the operating system.

You need this information to understand your system better, install appropriate software and drivers, apply patches, obtain vendor support, plan expansions and upgrades, and use your system fully.

In general, Linux distributions provide many tools you can use to display system information. Often, you can query one of the virtual filesystems like /proc or /sys directly, but they may provide basic information that"s hard to understand at a glance.

This article looks at seven commands that provide details about your system"s CPU, disk, RAM, devices, and firmware, in a direct and easy-to-understand way. These utilities compile information from different sources to present a relevant summary that aids you in understanding the system"s capabilities.

The lscpu utility provides a comprehensive summary of your CPU"s capabilities, including model information, the number of cores, speeds, flags, virtualization capabilities, and security mitigations applied.

Linux provides many utilities to look at the storage and disks attached to your system, such as df, fdisk, or mount. These are great options for gathering specific information. You can also use lsblk to get an overview of your block devices at a glance:

This utility provides much more information, and you should check all of its options using man lsblk. I often use two options: --fs to include the filesystem type in the output and -J for JSON output to parse using other programs.

Use the lsusb utility to gather information about available USB devices. Your distribution may not include this utility by default. Install the usbutils package to access it:

Next on the list is lspci to get information about your PCI devices. This utility is part of the pciutils package, and you may need to install it, depending on your distribution:

You can use the -v option for a more detailed output, -k to list the Linux kernel module in use by the device, and -s to filter specific devices based on their ID. For example, to list kernel modules for device 05:00.0, use:

For additional information about your RAM hardware, including the number and type of slots available, manufacturing information, sizes, and other physical details, use the dmidecode utility. This generic utility provides information about many hardware and firmware components. You can install it with the dmidecodepackage :

Since dmidecode provides a huge dump of information, you can filter its output using the option -t TYPE to list specific types only. For example, to display only RAM-related information, use -t memory:

I"ve listed some command-line utilities that help you to understand the system and hardware where you run your Linux operating system. Some of these utilities are specialized, while dmidecode is generic. You can see all information that it can provide by using dmidecode -t:

Other high-level utilities provide detailed information about hardware like hwinfo or GUI tools such as cpu-x. I will cover some of these tools in future articles.

linux lcd panel info free sample

free is a popular command used by system administrators on Unix/Linux platforms. It"s a powerful tool that gives insight into the memory usage in human-readable format.

The man page for this command states that free displays the total amount of free and used memory on the system, including physical and swap space, as well as the buffers and caches used by the kernel. The information is gathered by parsing /proc/meminfo.

Like any other command, free has gone through revisions over time to make its output meaningful and accurate for decision making. In Red Hat Enterprise Linux (RHEL) 6, the output is somewhat different from that of RHEL 7 and 8. However, in all these versions, there are key parameters that do not change.

free -b, -k, -m, -g: Display the amount of memory in bytes, kilobytes, megabytes, gigabytes respectively. You can also use free -h to show output in human-readable output. Please run free --help for more information on the options.

linux lcd panel info free sample

Linux (LEE-nuuks or LIN-uuks)open-source Unix-like operating systems based on the Linux kernel,operating system kernel first released on September 17, 1991, by Linus Torvalds.packaged as a Linux distribution, which includes the kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name "GNU/Linux" to emphasize the importance of GNU software, causing some controversy.

Popular Linux distributionsDebian, Fedora Linux, and Ubuntu, the latter of which itself consists of many different distributions and modifications, including Lubuntu and Xubuntu. Commercial distributions include Red Hat Enterprise Linux and SUSE Linux Enterprise. Desktop Linux distributions include a windowing system such as X11 or Wayland, and a desktop environment such as GNOME or KDE Plasma. Distributions intended for servers may omit graphics altogether, or include a solution stack such as LAMP. Because Linux is freely redistributable, anyone may create a distribution for any purpose.

Linux was originally developed for personal computers based on the Intel x86 architecture, but has since been ported to more platforms than any other operating system.Android on smartphones, Linux, including Android, has the largest installed base of all general-purpose operating systems, as of May 2022desktop computers,Chromebook, which runs the Linux kernel-based ChromeOS, dominates the US K–12 education market and represents nearly 20 percent of sub-$300 notebook sales in the US.big iron systems such as mainframe computers, and is used on all of the world"s 500 fastest supercomputers

Linux also runs on embedded systems, i.e. devices whose operating system is typically built into the firmware and is highly tailored to the system. This includes routers, automation controls, smart home devices, video game consoles,televisions (Samsung and LG Smart TVs),automobiles (Tesla, Audi, Mercedes-Benz, Hyundai and Toyota),spacecraft (Falcon 9 rocket, Dragon crew capsule and the Perseverance rover).

Linux is one of the most prominent examples of free and open-source software collaboration. The source code may be used, modified and distributed commercially or non-commercially by anyone under the terms of its respective licenses, such as the GNU General Public License (GPL). The Linux kernel, for example, is licensed under the GPLv2.

Onyx Systems began selling early microcomputer-based Unix workstations in 1980. Later, Sun Microsystems, founded as a spin-off of a student project at Stanford University, also began selling Unix-based desktop workstations in 1982. While Sun workstations didn"t utilize commodity PC hardware like Linux was later developed for, it represented the first successful commercial attempt at distributing a primarily single-user microcomputer that ran a Unix operating system.

Although not released until 1992, due to legal complications, development of 386BSD, from which NetBSD, OpenBSD and FreeBSD descended, predated that of Linux.

Linus Torvalds has stated on separate occasions that if the GNU kernel or 386BSD had been available at the time (1991), he probably would not have created Linux.

While attending the University of Helsinki in the fall of 1990, Torvalds enrolled in a Unix course.MicroVAX minicomputer running Ultrix, and one of the required texts was Andrew S. Tanenbaum. This textbook included a copy of Tanenbaum"s MINIX operating system. It was with this course that Torvalds first became exposed to Unix. In 1991, he became curious about operating systems.Linux kernel.

Torvalds began the development of the Linux kernel on MINIX and applications written for MINIX were also used on Linux. Later, Linux matured and further Linux kernel development took place on Linux systems.

Linus Torvalds had wanted to call his invention "Freax", a portmanteau of "free", "freak", and "x" (as an allusion to Unix). During the start of his work on the system, some of the project"s makefiles included the name "Freax" for about half a year. Initially, Torvalds considered the name "Linux" but dismissed it as too egotistical.

To facilitate development, the files were uploaded to the FTP server (ftp.funet.fi) of FUNET in September 1991. Ari Lemmke, Torvalds" coworker at the Helsinki University of Technology (HUT) who was one of the volunteer administrators for the FTP server at the time, did not think that "Freax" was a good name, so he named the project "Linux" on the server without consulting Torvalds.

According to a newsgroup post by Torvalds,LIN-uuks) with a short "i" as in "print" and "u" as in "put". To further demonstrate how the word "Linux" should be pronounced, he included an audio guide (LEEN-uuks) with a short but close front unrounded vowel.

Adoption of Linux in production environments, rather than being used only by hobbyists, started to take off first in the mid-1990s in the supercomputing community, where organizations such as NASA started to replace their increasingly expensive machines with clusters of inexpensive commodity computers running Linux. Commercial use began when Dell and IBM, followed by Hewlett-Packard, started offering Linux support to escape Microsoft"s monopoly in the desktop operating system market.

Today, Linux systems are used throughout computing, from embedded systems to virtually all supercomputers,server installations such as the popular LAMP application stack. Use of Linux distributions in home and enterprise desktops has been growing.netbook market, with many devices shipping with customized Linux distributions installed, and Google releasing their own ChromeOS designed for netbooks.

Linux"s greatest success in the consumer market is perhaps the mobile device market, with Android being the dominant operating system on smartphones and very popular on tablets and, more recently, on wearables. Linux gaming is also on the rise with Valve showing its support for Linux and rolling out SteamOS, its own gaming-oriented Linux distribution, and later the Steam Deck platform. Linux distributions have also gained popularity with various local and national governments, such as the federal government of Brazil.

Greg Kroah-Hartman is the lead maintainer for the Linux kernel and guides its development.William John Sullivan is the executive director of the Free Software Foundation,

Linux vendors and communities combine and distribute the kernel, GNU components, and non-GNU components, with additional package management software in the form of Linux distributions.

Many open source developers agree that the Linux kernel was not designed but rather evolved through natural selection. Torvalds considers that although the design of Unix served as a scaffolding, "Linux grew with a lot of mutations – and because the mutations were less than random, they were faster and more directed than alpha-particles in DNA."Eric S. Raymond considers Linux"s revolutionary aspects to be social, not technical: before Linux, complex software was designed carefully by small groups, but "Linux evolved in a completely different way. From nearly the beginning, it was rather casually hacked on by huge numbers of volunteers coordinating only through the Internet. Quality was maintained not by rigid standards or autocracy but by the naively simple strategy of releasing every week and getting feedback from hundreds of users within days, creating a sort of rapid Darwinian selection on the mutations introduced by developers."Bryan Cantrill, an engineer of a competing OS, agrees that "Linux wasn"t designed, it evolved", but considers this to be a limitation, proposing that some features, especially those related to security,Unix-like operating system, deriving much of its basic design from principles established in Unix during the 1970s and 1980s. Such a system uses a monolithic kernel, the Linux kernel, which handles process control, networking, access to the peripherals, and file systems. Device drivers are either integrated directly with the kernel, or added as modules that are loaded while the system is running.

The GNU userland is a key part of most systems based on the Linux kernel, with Android being the notable exception. The Project"s implementation of the C library works as a wrapper for the system calls of the Linux kernel necessary to the kernel-userspace interface, the toolchain is a broad collection of programming tools vital to Linux development (including the compilers used to build the Linux kernel itself), and the coreutils implement many basic Unix tools. The project also develops Bash, a popular CLI shell. The graphical user interface (or GUI) used by most Linux systems is built on top of an implementation of the X Window System.Wayland as the new display server protocol in place of X11. Many other open-source software projects contribute to Linux systems.

A bootloader, for example GNU GRUB, LILO, SYSLINUX or systemd-boot. This is a program that loads the Linux kernel into the computer"s main memory, by being executed by the computer when it is turned on and after the firmware initialization is performed.

An init program, such as the traditional sysvinit and the newer systemd, OpenRC and Upstart. This is the first process launched by the Linux kernel, and is at the root of the process tree: in other terms, all processes are launched through init. It starts processes such as system services and login prompts (whether graphical or in terminal mode).

Software libraries, which contain code that can be used by running processes. On Linux systems using ELF-format executable files, the dynamic linker that manages the use of dynamic libraries is known as ld-linux.so. If the system is set up for the user to compile software themselves, header files will also be included to describe the interface of installed libraries. Besides the most commonly used software library on Linux systems, the GNU C Library (glibc), there are numerous other libraries, such as SDL and Mesa.

C standard library is the library needed to run C programs on a computer system, with the GNU C Library being the standard. For embedded systems, alternatives such as the musl, EGLIBC (a glibc fork once used by Debian) and uClibc (which was designed for uClinux) have been developed, although the last two are no longer maintained. Android uses its own C library, Bionic.

CLI shells are text-based user interfaces, which use text for both input and output. The dominant shell used in Linux is the Bourne-Again Shell (bash), originally developed for the GNU project. Most low-level Linux components, including various parts of the userland, use the CLI exclusively. The CLI is particularly suited for automation of repetitive or delayed tasks and provides very simple inter-process communication.

Server distributions might provide a command-line interface for developers and administrators, but provide a custom interface towards end-users, designed for the use-case of the system. This custom interface is accessed through a client that resides on another system, not necessarily Linux based.

Linux currently has two modern kernel-userspace APIs for handling video input devices: V4L2 API for video streams and radio, and DVB API for digital TV reception.

Simplified history of Unix-like operating systems. Linux shares similar architecture and concepts (as part of the POSIX standard) but does not share non-free source code with the original Unix or MINIX.

The primary difference between Linux and many other popular contemporary operating systems is that the Linux kernel and other components are free and open-source software. Linux is not the only such operating system, although it is by far the most widely used.free and open-source software licenses are based on the principle of copyleft, a kind of reciprocity: any work derived from a copyleft piece of software must also be copyleft itself. The most common free software license, the GNU General Public License (GPL), is a form of copyleft, and is used for the Linux kernel and many of the components from the GNU Project.

Linux-based distributions are intended by developers for interoperability with other operating systems and established computing standards. Linux systems adhere to POSIX,SUS,LSB, ISO, and ANSI standards where possible, although to date only one Linux distribution has been POSIX.1 certified, Linux-FT.

Free software projects, although developed through collaboration, are often produced independently of each other. The fact that the software licenses explicitly permit redistribution, however, provides a basis for larger-scale projects that collect the software produced by stand-alone projects and make it available all at once in the form of a Linux distribution.

Many Linux distributions manage a remote collection of system software and application software packages available for download and installation through a network connection. This allows users to adapt the operating system to their specific needs. Distributions are maintained by individuals, loose-knit teams, volunteer organizations, and commercial entities. A distribution is responsible for the default configuration of the installed Linux kernel, general system security, and more generally integration of the different software packages into a coherent whole. Distributions typically use a package manager such as apt, yum, zypper, pacman or portage to install, remove, and update all of a system"s software from one central location.

In many cities and regions, local associations known as Linux User Groups (LUGs) seek to promote their preferred distribution and by extension free software. They hold meetings and provide free demonstrations, training, technical support, and operating system installation to new users. Many Internet communities also provide support to Linux users and developers. Most distributions and free software / open-source projects have IRC chatrooms or newsgroups. Online forums are another means for support, with notable examples being LinuxQuestions.org and the various distribution specific support and community forums, such as ones for Ubuntu, Fedora, and Gentoo. Linux distributions host mailing lists; commonly there will be a specific topic such as usage or development for a given list.

There are several technology websites with a Linux focus. Print magazines on Linux often bundle cover disks that carry software or even complete Linux distributions.

Although Linux distributions are generally available without charge, several large corporations sell, support, and contribute to the development of the components of the system and of free software. An analysis of the Linux kernel in 2017 showed that well over 85% of the code developed by programmers who are being paid for their work, leaving about 8.2% to unpaid developers and 4.1% unclassified.Intel, Samsung, Google, AMD, Oracle and Facebook.Canonical and SUSE, have built a significant business around Linux distributions.

The free software licenses, on which the various software packages of a distribution built on the Linux kernel are based, explicitly accommodate and encourage commercialization; the relationship between a Linux distribution as a whole and individual vendors may be seen as symbiotic. One common business model of commercial suppliers is charging for support, especially for business users. A number of companies also offer a specialized business version of their distribution, which adds proprietary support packages and tools to administer higher numbers of installations or to simplify administrative tasks.

Most programming languages support Linux either directly or through third-party community based ports.GNU toolchain, which includes the GNU Compiler Collection (GCC) and the GNU Build System. Amongst others, GCC provides compilers for Ada, C, C++, Go and Fortran. Many programming languages have a cross-platform reference implementation that supports Linux, for example PHP, Perl, Ruby, Python, Java, Go, Rust and Haskell. First released in 2003, the LLVM project provides an alternative cross-platform open-source compiler for many languages. Proprietary compilers for Linux include the Intel C++ Compiler, Sun Studio, and IBM XL C/C++ Compiler. BASIC in the form of Visual Basic is supported in such forms as Gambas, FreeBASIC, and XBasic, and in terms of terminal programming or QuickBASIC or Turbo BASIC programming in the form of QB64.

A common feature of Unix-like systems, Linux includes traditional specific-purpose programming languages targeted at scripting, text processing and system configuration and management in general. Linux distributions support shell scripts, awk, sed and make. Many programs also have an embedded programming language to support configuring or programming themselves. For example, regular expressions are supported in programs like grep and locate, the traditional Unix MTA Sendmail contains its own Turing complete scripting system, and the advanced text editor GNU Emacs is built around a general purpose Lisp interpreter.

Most distributions also include support for PHP, Perl, Ruby, Python and other dynamic languages. While not as common, Linux also supports C# (via Mono), Vala, and Scheme. Guile Scheme acts as an extension language targeting the GNU system utilities, seeking to make the conventionally small, static, compiled C programs of Unix design rapidly and dynamically extensible via an elegant, functional high-level scripting system; many GNU programs can be compiled with optional Guile bindings to this end. A number of Java virtual machines and development kits run on Linux, including the original Sun Microsystems JVM (HotSpot), and IBM"s J2SE RE, as well as many open-source projects like Kaffe and JikesRVM.

The Linux kernel is a widely ported operating system kernel, available for devices ranging from mobile phones to supercomputers; it runs on a highly diverse range of computer architectures, including the hand-held ARM-based iPAQ and the IBM mainframes System z9 or System z10.ELKS kernel fork can run on Intel 8086 or Intel 80286 16-bit microprocessors, while the µClinux kernel fork may run on systems without a memory management unit. The kernel also runs on architectures that were only ever intended to use a manufacturer-created operating system, such as Macintosh computersPowerPC, Intel, and Apple silicon processors), PDAs, video game consoles, portable music players, and mobile phones.

Linux has a reputation of supporting old hardware very well by maintaining standardized drivers for a long time.conferences devoted to maintaining and improving support for diverse hardware under Linux, such as FreedomHEC. Over time, support for different hardware has improved in Linux, resulting in any off-the-shelf purchase having a "good chance" of being compatible.

Many quantitative studies of free/open-source software focus on topics including market share and reliability, with numerous studies specifically examining Linux.vendor lock-in.

Android, which is based on the Linux kernel, has become the dominant operating system for smartphones. In July 2022, 71.9% of smartphones accessing the internet worldwide used Android.iOS holding 28%, and the remaining 1% attributed to various niche platforms.

For years Linux has been the platform of choice in the film industry. The first major film produced on Linux servers was 1997"s DreamWorks Animation, Pixar, Weta Digital, and Industrial Light & Magic have migrated to Linux.

Linux distributions have also gained popularity with various local and national governments. News of the Russian military creating its own Linux distribution has also surfaced, and has come to fruition as the G.H.ost Project.Kerala has gone to the extent of mandating that all state high schools run Linux on their computers.China uses Linux exclusively as the operating system for its Loongson processor family to achieve technology independence.France and Germany have also taken steps toward the adoption of Linux.Red Star OS, developed since 2002, is based on a version of Fedora Linux.

Linux kernel is licensed under the GNU General Public License (GPL), version 2. The GPL requires that anyone who distributes software based on source code under this license must make the originating source code (and any modifications) available to the recipient under the same terms.GNU Lesser General Public License (LGPL), a more permissive variant of the GPL, and the X.Org implementation of the X Window System uses the MIT License.

A 2001 study of Red Hat Linux 7.1 found that this distribution contained 30 million source lines of code.Constructive Cost Model, the study estimated that this distribution required about eight thousand person-years of development time. According to the study, if all this software had been developed by conventional proprietary means, it would have cost about US$1.64 billionC programming language, but many other languages were used, including C++, Lisp, assembly language, Perl, Python, Fortran, and various shell scripting languages. Slightly over half of all lines of code were licensed under the GPL. The Linux kernel itself was 2.4 million lines of code, or 8% of the total.

In the United States, the name Linux is a trademark registered to Linus Torvalds.Linux, and then demanded royalties from Linux distributors. In 1996, Torvalds and some affected organizations sued him to have the trademark assigned to Torvalds, and, in 1997, the case was settled.Linux Mark Institute (LMI). Torvalds has stated that he trademarked the name only to prevent someone else from using it. LMI originally charged a nominal sublicensing fee for use of the Linux name as part of trademarks,

The Free Software Foundation (FSF) prefers GNU/Linux as the name when referring to the operating system as a whole, because it considers Linux distributions to be variants of the GNU operating system initiated in 1983 by Richard Stallman, president of the FSF.

A minority of public figures and software projects other than Stallman and the FSF, notably Debian (which had been sponsored by the FSF up to 1996),GNU/Linux when referring to the operating system as a whole.Linux, as do many large Linux distributions (for example, SUSE Linux and Red Hat Enterprise Linux). By contrast, Linux distributions containing only free software use "GNU/Linux" or simply "GNU", such as Trisquel GNU/Linux, Parabola GNU/Linux-libre, BLAG Linux and GNU, and gNewSense.

As of May 2011lines of code of the Linux distribution Ubuntu (version "Natty") is made of GNU components (the range depending on whether GNOME is considered part of GNU); meanwhile, 6% is taken by the Linux kernel, increased to 9% when including its direct dependencies.

GNU is the primary userland used in nearly all Linux distributions.GNU Core utilities are an essential part of most distributions. Most Linux distributions use the X Window system.widget toolkit, vary with the specific distribution, desktop environment, and user configuration.

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On Linux or Unix-based systems, the df command is used to display the free disc space of a specific file system. Simply type "df" to see a summary of the filesystem"s information. In layman"s terms, programme df aids in the retrieval of data from any hard disc or mounted device, including CD, DVD, and flash drives.

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However, before we look at the snmpwalk command, we first need to look at how SNMP works. On SNMP-enabled devices, an SNMP agent collects information from the deviceand stores it within a Management Information Base (MIB) where this data is stored so that it can be accessed whenever the SNMP manager polls the SNMP agent.

When the SNMP Manager queries the SNMP agent, data is taken from the MIB and sent to the SNMP Manager where it can be viewed with a network monitoring tool. There are many different commands that you can use to query an SNMP agent. The most common ways are through the use of the GET or the GET-Next command. The GET command is used to take an Object Identifier (OID) from the MIB. The GET-Next command is a little more advanced and goes through a MIB tree from OID to OID pulling information. This is where snmpwalk comes in.

The snmpwalk is issued to the root node of the sub-tree so that system information is gathered from every connected node. This provides you with an efficient way to collect information from a range of devices like routers and switches. The information you collect arrives in the form of OIDs. An OID is an object which is part of the MIB within an SNMP-enabled device.

On Linux devices, snmpwalk is available as a package for you to install. The process of doing this depends on your Linux distribution. However, you can install Linux by entering the following commands:

However, if you have a specific MIB then you can get more detailed information returned back to you from the objects that you want to view. In the example below the -m command denotes the MIB that is going to be queried.

Below is a snmpwalk example command on Linux. As you can see this functions in much the same way walking through the OIDs to pull the relevant system information from the connected devices:

If you’re using the snmpwalk command then it’s important to remember to cut down the amount of information you receive as much as possible. Specifying a MIB will allow you to see specific information rather than data collected from an entire database of object IDs!

The SNMP MIB Browser from ManageEngine is a visual SNMP Walk tool that will run on Windows and Linux. This is a great free alternative to the big network monitoring systems like PRTG if you just want to see the details in the MIB returned by a specific device. The MIB Browser can also query a series of devices and summarize their MIBs.

A MIB is the SNMP Management Information Base. This is created through a reference code structure with each item having sub-nodes that are identified by the parent ID plus an extension. So, the MIB has a tree structure. A MIB walk is the process of working through a received MIB report and checking every code defined in the SNMP standard to see if it has an associated value.

The snmpget command in Linux has a number of switches that modify the behavior of the utility. You can see these options by entering snmpget -h Here are the results that you will see: