Commands

The Linux “chown” command changes the ownership of files, directories, or groups. The file ownership is changed using the “sudo chown owner filename” command.

In Linux, the useradd command adds different users. The functionality of the useradd command depends upon the options supported by it.

The diff command is used to make the comparison between two files comparing their every line. The diff command comes pre-installed in Linux distributions

The date command utility in linux is used to display the date and set the date using the terminal. This command utility supports different options and formats.

In Linux, the nohup (no hang up) command runs the processes in the foreground and background even after the user is logged out of the shell or terminal

In Linux, the “who” command displays the information of currently active users with various available options through the “who –help”.

To use the ps aux command in Linux, simply run the ps command with aux options which are used to display the information the all running possesses.

In Linux and its distributions, the “lsb_release” command is beneficial for getting detailed information about the installed distribution.

In Linux/UNIX, the wc command counts the words, number of lines, Characters, maximum characters in a line, and size in bytes for the files.

The hwinfo command is used to get information about the whole or the specific hardware component. Using hwinfo, the info can be copied in a restricted way.

The “timedatectl” command can be used to display the system clock setting of the installed Linux system such as “Local time”, “Universal time”, “RTC time”, etc.

The traceroute command tracks a specific domain, ip address, specific number of hops, maximum hops, and destination port for the data packets

In Linux, the pipe command is used to combine two or more commands where the first command’s output is used as input to the next command

In Linux, the netcat command is utilized to monitor the data across multiple devices within the network. This post has briefly explained the netcat command

The sync command syncs a user’s cache data and file systems to the permanent memory etc. This post offers the detailed usage of the sync command in Linux

In Linux, the arp command resolves the IP address of the machine to its physical address to connect and communicate with it.

In Linux, the jobs command permits you to interact with the system jobs through the terminal directly. This command is also used to check the states of the jobs and list them with their detailed information. We have explained what jobs command is, its syntax, jobs states, and jobs command options, and its usage in Linux. Also, the procedure of starting a job, running it in the background, then moving it to the foreground is provided in this article.

In Linux, the tee command is used to read the standard output of any command and can store it in a new file. Read out this post to learn more about tee command.

Using Cron daemon, the tasks you scheduled for later execution are called Cron Jobs. Cron Jobs are primarily used to regularly clean up your system cache or create a backup of the log files and databases. This article explained what Cron Job is in Linux. Also, the Cron Job commands, its syntax, Cron Job types, and its examples are discussed in this article.

The export command is one of the built-in commands of the bash shell which is used to export the environmental variables from the parent shell to the newly created child shell. In this write-up, we have discussed the export command and explained its utilization in Linux with the help of examples. We also explained the options used along with the export command.

The groupdel command is used to delete the user group when is no more need of the group and also remove from the file /etc/group. This command doesn’t delete the configuration files related to the group but deletes all the entries and account files related to that group. In this article, we have discussed the usage of the groupdel command in Linux to delete the groups with the help of examples.

The groupmod command is used to modify the existing definitions of the groups in Linux which includes its name, GID, and password. This command can be used at any instant of time. There are different options that can be used with the groupmod command to implement these modifications. In this write-up, we have explained the usage of the groupmod command using its different options.

The groupadd command is used to create new groups in Linux, these users can assign specific permissions by granting the permissions to the groups. It is very useful in huge networks, where multiple users can be granted the same permissions by adding them to a single group. In this write-up, we have discussed the usage of the groupadd command in Linux for creating the groups. We have also explained the usage of its different options with the help of examples.

In Linux, using the screen command permits you to create a screen session and open as many virtual terminals as you like within that session. Even if you get disconnected or the screen session is not visible, the jobs or processes running on the screen will continue to perform the respective operations. This guide explains screen command, its syntax, installation method, and its usage in Linux. Also, the screen command options and shortcuts with descriptions are provided in this article.

System administrators oversee configuring, maintaining, and ensuring dependable computer functioning, particularly in multi-user PCs. A typical Linux user is familiar with practically all of the fundamental Linux day-to-day commands for tasks such as installing applications, transferring data from one directory to another. In this article we explained top 30 Linux commands that any system administrator should be familiar with.

VIM application is a top-notch text editor. It is a free and open-source text editor that runs on all major platforms with much functionality and support from the programming community. The VIM text editor also offers several useful commands that you should master to get the most out of it. In this article, we explain top 25 most significant vim editor commands.

SELinux (Security Enhanced Linux) is a security protocol for Linux administrators that allows them to acquire more control. The SELinux protocol allows them to enforce the resource policies that represents how much access a program or any user do have. This SELinux is supported by several commands that automates the task of an administrator. In this article, we explain and execution of all basic SELinux commands that a regular user may need to know.

Perf is a lightweight CPU profiling command-line utility that monitors program events and examines CPU performance. The perf command may record CPU performance counters and trace points and is used as a major interface to the Linux kernel’s performance monitoring features. The perf tool helps you improve your system by revealing which applications take the longest to execute. In this article, we explain what Linux perf command is and how you can use it.

Don’t know to find out the IP address in Linux? No worries! This post will demonstrate how you can find your IP address using Linux commands and the GUI method. Moreover, the procedure of checking your public IP address will also be provided to you. So, let’s start!

Nmap is a famously used command for scanning and maintaining the network. It helps the network administrator for securing and managing their networks.

As Linux is a multi-user system, it allows more than one user to have access to the system at the same time if it’s attached to a network or the internet. Remote users can login via ssh (secure shell) and operate the computer.
In such a multi-user environment, it’s necessary to ensure operational accuracy to users. So that the actions of one user could not be allowed to crash the system, nor could one user interfere with the files belonging to another user.

In this article we learned about the “ifconfig” command in Linux along with how to install and use it. Users can view and modify various network interfaces using it. Although it’s replaced by the “ip” command still, it’s useful due to various reasons, one of them being it’s simpler syntax.

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