LINUX COMMANDS

This category covers topics including various linux command line utilities and its uses.

How to Use Semanage Command for SELinux Policy

Semanage Command

Semanage is a tool used to configure certain elements of SELinux policy without modifying or recompiling policy sources. This includes mapping Linux usernames to SELinux user identities and security context mappings for objects like network ports, interfaces, and hosts. By [...]

Eyram Amedzor 12:05 am

4 Commands to Wipe Disk on Linux

linux wipe disk commands

Sometimes you can need to delete or format a hard drive for some operations. The most common use case for completely and irrevocably wiping a device will be when the device is going to be given away or sold as [...]

Alain Francois 8:40 am

How to Install and Use GraphicsMagick to Edit Images CLI

install GraphicsMagick

GraphicsMagick is a tool that allows to edit images from terminal. It claims to be a handy tool for those cases in which you have to do some quick image editing and don't want to open a heavy program such [...]

Ivo Ursino 12:05 am

3 Methods to Change the Number of Open File Limit in Linux

open file limit linux

The operating system assigns temporarily a number called file handle to a file when it is opened for access. A special area of main memory is reserved for file handles, and the size of this area determines how many files can be opened at once. The processes [...]

Alain Francois 6:17 am

A List of Awesome Linux Command Line Text Based Games

commandline games

The Linux command line is a powerful console which lets you interact with the entire Linux environment at a more intimate level. Though Linux isn't well known for gaming like Windows is, you can do a whole lot more with [...]

Eyram Amedzor 3:10 am

fd - Powerful Alternative to Linux Find Command

fd tool find linux

The Linux directory tree obeys the Filesystem Hierarchy Standard, which allows Linux users and developers to locate system files in standard directories. Since Linux is a very file-oriented operating system, it is important that you know how to find files. [...]

Alain Francois 2:00 am

How to Schedule Job on Linux using Cron, Anacron and at Commands

schedule jobs linux

Job scheduling is a feature that allows a user to submit a command or program for execution at a specified time in the future. On a Linux server, it is important that certain tasks run at certain times The execution of the [...]

Alain Francois 2:00 am

15 Linux Screen Command for Dealing Terminal Sessions

linux screen command examples

The screen is a terminal multiplexer. Using this, you can run any number of console-based-applications, interactive command shells, course-based applications, etc. You can use screen to keep running program after you accidentally close the terminal, or even after you log out and [...]

Alain Francois 3:45 am

6 Ways to Find Largest Top Files and Directory in Linux

find top files directories linux

Finding the size of large file and directories in Linux servers is one of the most important tasks that every system administrator came across in his daily tasks. So, every system administrator must know about multiple ways to find out [...]

Kashif Siddique 2:31 pm

13 Practical df Command Examples to Check Disk Space in Linux

linux df command

The df command displays the disk space usage for the Linux filesystems. It displays the amount of total and free disk space available on the mounted file systems. Using the command, we can also find used blocks and inodes in [...]

Bobbin Zachariah 3:40 am

How to Use Linux Hexdump Command with Practical Examples

Hexdump is a very useful Linux command for developers and application debuggers. It has ability to dump file contents into many formats like hexadecimal, octal, ASCII and decimal. This command takes a file, or any standard input, as input parameter [...]

Aun Raza 3:00 am

A Guide to Kill Process in Different Ways on Linux

The kill command is used on linux and other Unix-like operating systems ( Solaris,  AIX, HP-Unix, Mac). It doesn’t matter which operating system you are using to terminate processes without having to log out or reboot the computer. A process [...]

Shaha Alam 3:00 am

How to Install perf Tool on CentOS and Ubuntu

Perf is a performance counter for Linux. With it you can know many secrets of the running linux system. For example why L2 cache misses are happening. Why your disk is showing activity, which code paths are making the stalls [...]

Mihajlo Milenovic 3:00 am

Unix Z Commands – Zcat, Zless, Zgrep, Zegrep and Zdiff Examples

In this article let us review how to perform normal file operation on a compressed files using the powerful Linux Z commands.Some of these z commands uncompressed the file temporarily in the /tmp directory to perform the specified operation. Some [...]

Shaha Alam 3:00 am