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Screen  is a full-screen software program that can be used to multiplexes a physical console between several processes (typically interactive shells). It offers a user to open several separate terminal instances inside a one single terminal window manager. The screen application is very useful, if you are dealing with multiple programs from a command line interface and for separating programs from the terminal shell. It also allows you to share your sessions with others users and detach/attach terminal sessions. On my Ubuntu 10.04 Server Edition,  Screen  has been installed by default. But, in Linux Mint does not have screen installed by default, I need to install it first using  apt-get command  before using it. Please follow your distribution installation procedure to install screen. # apt-get install screen (On Debian based Systems) # yum install screen (On RedHat based Systems) Actually, Screen is a very good command in Linux which is hidde...

1. When you need to create 30 folders at a time with specific date sequence, you can do it easily by a single line command in windows !! Just watch the video, it's very easy !

What is Li-Fi? Light Fidelity or Li-Fi is a Visible Light Communications (VLC) system running wireless communications travelling at very high speeds. Li-Fi uses common household LED (light emitting diodes) lightbulbs to enable data transfer, boasting speeds of up to 224 gigabits per second. The term Li-Fi was coined by University of Edinburgh Professor Harald Haas during a TED Talk in 2011. Haas envisioned light bulbs that could act as wireless routers. Subsequently, in 2012 after four years of research, Haas set up company pureLiFi with the aim 'to be the world leader in Visible Light Communications technology'. How it works Li-Fi and Wi-Fi are quite similar as both transmit data electromagnetically. However, Wi-Fi uses radio waves while Li-Fi runs on visible light. As we now know, Li-Fi is a Visible Light Communications (VLC) system. This means that it accommodates a photo-detector to receive light signals and a signal processing e...

rsync -abviuzP src/ dest/ -i  turns on the itemized format, which shows more information than the default format -b  makes rsync backup files that exist in both folders, appending  ~  to the old file. You can control this suffix with  --suffix .suf -u  makes rsync transfer skip files which are newer in dest than in src -z  turns on compression, which is useful when transferring easily-compressible files over slow links -P  turns on  --partial  and  --progress --partial  makes rsync keep partially transferred files if the transfer is interrupted --progress  shows a progress bar for each transfer, useful if you transfer big files Someone suggest to use:      rsync -abuP rsync synchronizes in one direction from source to destination. Therefore the following statement rsync -avh --progress Source Destination syncs everything from  Source  to  Destination . The merged folder res...

This guide explains how to configure NFS server in CentOS 7.0 Network File System (NFS) is a popular distributed filesystem protocol that enables users to mount remote directories on their server. The system lets you leverage storage space in a different location and write onto the same space from multiple servers in an effortless manner. It, thus, works fairly well for directories that users need to access frequently. This tutorial explains the process of mounting NFS share on an CentOS 7.0 server in an simple and easy-to-follow steps. 1 Preliminary Note I have fresh installed CentOS 7.0 server, on which I am going to install the NFS server. My CentOS server have hostname  server1.example.com  and IP as  192.168.0.100 You can have your CentOS server installed from the  tutorial . Alternatively we need a CentOS 7.0 client machine either server/desktop. I my case I will use an CentOS 7.0 desktop with hostname   client1.example.com  and IP as...