As a system administrator or Linux power user, you may have probably come across or even on several occasions, used the versatile Linux Rsync tool, which enables users to expeditiously copy or synchronize files locally…
Some of the special directories that a Linux user is bound to work with so many times on a shell command line include the user’s home directory, the current and previous working directories. Therefore, understanding…
When you have important sensitive data, then its crucial to have an extra layer of security to your files and directories, specially when you need to transmit the data with others over a network. That’s…
As an alternative to cron job scheduler, the at command allows you to schedule a command to run once at a given time without editing a configuration file. The only requirement consists of installing this…
Have you ever typed a command and rushed to hit Enter, only to find that you had a typo in it? While you can use the up and down arrows to navigate the command history…
Similarly to the previous tip about find out top processes by RAM and CPU usage, you can also use top command to view the same information. Perhaps there’s an extra advantage of this approach when…
I remember once reading that efficient system administrators are lazy people. The reason is not that they’re not doing their job or wasting their time – it is mostly because they have automated a good…
Are you worried of transferring or uploading large files over a network, then worry no more, because you can move your files in bits to deal with slow network speeds by splitting them into blocks…
Many times, we are locked in a situation where we have to search for multiple files with different extensions, this has probably happened to several Linux users especially from within the terminal. There are several…
Virtual consoles are very important features of Linux, and they provide a system user a shell prompt to use the system in a non-graphical setup which you can only use on the physical machine but…
Apache web server is probably the most used web server across platforms including different Linux distributions and Windows. The web server is used to deliver web content and can serve many queries at once. It is often…
One of the Linux’s beauties is that you can control almost everything about it. This gives a system administrator a great control over his system and better utilization of the system resources. While some might have…
In Linux, you can change the maximum amount of open files. You may modify this number by using the ulimit command. It grants you the ability to control the resources available for the shell or…
When running a web server that can be accessed from an open or public network such as Internet, then it is always a good System Administration practice to monitor access to your server. Find Top…
A rough utilization of Linux cat command would be to make a full disk backup or a disk partition backup or cloning of a disk partition by redirecting the command output against the partition of…
In Linux (also UNIX) $PATH is environment variable, used to tell the shell where to look for executable files. $PATH variable provides great flexibility and security to the Linux systems and it is definitely safe to…
More is a *nix command line used to display the contents of a file in a console. The basic usage of more command is to run the command against a file as shown below: Read…
Device or system hostnames are used to easily recognize a machine within a network in a human readable format. It is not much of a surprise, but on Linux system, the hostname can be easily…