Linux Apps

HowTo: Create a Patch Using Diff

How to create a patch file using diff command and how to apply it to an original file or to a whole directory from the Linux command line.

Adding Cron Jobs in Linux - Crontab Usage and Examples

This article shows how to schedule a cron job in Linux, shows the format (syntax) of scheduling jobs in crontab and provides some examples of cron tasks.

Creating ASCII Text Banners from the Linux Command Line

Generate large text banners (ASCII Art) from the Linux command line using FIGlet.

HowTo : Disable The Iptables Firewall in CentOS/RHEL

Iptables is a built in firewall in most Linux distributions.

Sometimes it is required to stop iptables for troubleshooting the network related problems.

In this article you'll learn how to check the current status of the iptables firewall, and how to disable or enable it in CentOS, RHEL (Red Hat Enterprise Linux), Fedora and similar distributions.

HowTo : Disable SELinux

SELinux is an access control tool that is installed and activated by default in such Linux distributions like RHEL (Red Hat Enterprise Linux), CentOS and Fedora.

If you've setup a new system, or installed some new application and it is not working, then you have to check SELinux, because it may be the cause of the problem.

In this article you'll learn how to check the current status of SELinux, how to disable or enable SELinux temporarily or permanently.

HowTo : Change Locale (Language and Character Set) in Linux

Locales are used in Linux to define which language and character set (encoding) the user uses.

In this article I'll show you how to :

  • Check the Current Locale
  • Get the List of Available Locales
  • Add a New Locale
  • Change the Locale for Current Session
  • Change the Locale Permanently
  • Change the Default System's Locale

Start a GUI Application on a Remote Computer using SSH

This article describes how to log into the remote computer (server) using SSH and run a GUI (graphical) application that requires screen. The GUI program will be displayed on the physical monitor, connected to that remote machine.