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 [...]
LINUX COMMANDS
4 Commands to Wipe Disk on Linux
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 [...]
8:40 am
How to Install and Use GraphicsMagick to Edit Images CLI
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 [...]
12:05 am
3 Methods to Change the Number of Open File Limit in 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 [...]
6:17 am
A List of Awesome Linux Command Line Text Based 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 [...]
3:10 am
fd - Powerful Alternative to Linux Find Command
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. [...]
2:00 am
How to Schedule Job on Linux using Cron, Anacron and at Commands
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 [...]
2:00 am
15 Linux Screen Command for Dealing Terminal Sessions
The screen or GNU 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 the program after you accidentally close the terminal, or [...]
3:45 am
How to Find Large Files & Directories in 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 [...]
2:31 pm
13 Practical df Command Examples to Check Disk Space in Linux
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 [...]
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 the 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 [...]
3:00 am
How to Stop Process Using Kill Command in 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 [...]
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 [...]
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 [...]
3:00 am