linux commands

As you know that, Linux is a robust operating system. Therefore, it works deeply on the hardware more. Rather, it has less effect on the software front. Therefore, if you put the wrong commands on Linux platform, then your computer hardware will damage or even, it will push the hardware into the eternal sleep as well. Therefore, you should make yourself more careful for using the wrong commands on Linux platform. Actually, Linux is a kind of operating system, which will not harm any hardware without any reason.

However, if Linux gets the wrong commands, then it will immediately strike back with a great thud on the hardware and instantly destroy the whole hardware system. One interesting point to tell you that if you are curious about for testing these wrong commands on Linux system seriously, then you can use the virtual machine, which will never do any harm to your computer hardware as well. However, never try to test these dangerous commands in any physical machines also.

Delete everything:

The command rm -rf / is responsible for the deletion of every files in the system. Moreover, this command is dangerous when you have a bunch of important files in your computer, then it will work venomously to wipe out all the files from your machines when you put this command to work. Eventually, the deleted files will not be recoverable at any cost. Once, it is done, then you will lose it forever and there will be no chance for any recovery even with the help of the data recovery software as well. The command part rm means removing the following files or folders whereas the command segment -rf means to remove all the files and folders without prompting you as well.

Fork bomb:

The command : (){ : |: & };: is a kind of Linux command which will destroy the CPU time and memory as well. It is very much dangerous for any computer machine. The reason is that it works like a replication way which means that your files in Linux will be duplicates in many times until CPU time and memory freezes as well. The main effect of this command will freeze your computer. Actually, it is a kind of denial-of service attack. One thing, you should not use this command for fun in any Linux machine. As it will destroy computer memory and hard disk heavily as well. When the CPU time and memory lost due to this command, then you will find that some programs are also mal-functioning due to it as well.

Formatting the hard disk:

It is a kind of command, which will wipe out your wholehearted disk space without leaving any trace of file or folder as well. Actually, the command mkfs.ext4 /dev/sda1 which will delete your computer hard disk fully. Therefore, there will be no chance for having any file trace as well. Moreover, you can expect the total whitewash in your Linux machine.

Actually, you can expect a different kind of formatting hard disk. The reason is that it will bring the hard disk in a factory-formatted disk. Therefore, you will get the deeper cleaning of your hard disk in such a way that as if you buy the new hard disk from the local market as well. However, you should never think that you would use this command for formatting your hard disk. The reason is that you should not try it in your Linux machine alone and you stay away from it.

Writing directly into the hard disk:

The command command > /dev/sda is very much dangerous for any Linux machine. The reason is that when this command will work on the Linux platform, then it will write directly into hard disk and it will damage the file system of the operating system as well. Moreover, you have to understand well before it strikes in your machine. Even, you will see that this command will make your directory structure more vulnerable as well.

Moreover, the default setting of the hard disk sector binding will get dislodge. Therefore, you will get the inconsistent data result from your Linux machine. Actually, after putting the command in Linux, you will have a little time to feel what is going to happen next. Therefore, the damage processing will be happen in the quick succession before you understand it fully.

Therefore, the list of the deadly commands will never give you a peaceful feeling when you consciously or unconsciously put it in your Linux machine as well. Even, if you commit the mistake for having these deadly commands work on your Linux machine, then you have to reinstall the new operating system in your machine as well.

 

About The Author: Lina is a writer blogger. She loves writing, travelling and reading books. She contributes to luxury home interiors

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Today, the Debian Team has announced the first update of the latest stable distribution Debian 7 Wheezy. In this update we can find some security corrections and few more adjustments for other big problems.  Security advisories were already published separately and are referenced where available.

This update does not constitute a new version of Debian 7 and only updates some of the packages included.  You don;t need to  throw away your 7 CDs or DVDs but only to update via an up-to-date Debian mirror after an installation, to cause any out of date packages to be updated.

Those who frequently install updates from security.debian.org won’t have to update many packages and most updates from security.debian.org are included in this update.

New installation media and CD and DVD images containing updated packages will be available soon at the regular locations.

Upgrading to this revision online is usually done by pointing the aptitude (or apt) package tool (see the sources.list(5) manual page) to one of Debian’s many FTP or HTTP mirrors. A comprehensive list of mirrors is available at: http://www.debian.org/mirror/list

You can find more from the official Debian Announcement: http://www.debian.org/News/2013/20130615 Continue Reading…

1. Wider accessibility

Installing Debian Wheezy is now easier than ever because of the new installer that offers better accessibility as well as other benefits. The system is available to be installed in 73 languages now, and more others are available.

“Debian can now be installed using software speech, above all by visually impaired people who do not use a Braille device,” the project team explained in the official release announcement.

2. Debian Wheezy have UEFI support

With version 7.0, Debian supports for the first time installation and booting using the Unified Extensible Firmware Interface (UEFI) for new 64-bit PCs (amd64).

3. Multiarch capability

One of the main release goals for Wheezy was that it allow Debian wheezy users to install packages from multiple architectures on the same machine, also known as “multiarch” support. This means that you can now, for the first time, install both 32- and 64-bit software on the same machine and have all the relevant dependencies correctly resolved, automatically,” the project team explained.

4. A raft of updated packages

Among numerous newly updated packages in Debian 7.0 are Linux 3.2, GNOME 3.4, KDE 4.8.4, GIMP 2.8.2, LibreOffice 3.5.4, Apache 2.2.22, MySQL 5.5.30, and Samba 3.6.6. Also available are more than 36,000 other ready-to-use software packages, the project notes.

5. Broad hardware support

Last but not least, it’s worth noting that “you can install Debian on computers ranging from handheld systems to supercomputers, and on nearly everything in between,” as the project team puts it. Specifically, a total of nine hardware architectures are supported in this Debian release, including 32-bit PC/Intel IA-32 (i386), 64-bit PC/Intel EM64T/x86-64 (amd64), Motorola/IBM PowerPC (powerpc), Sun/Oracle SPARC (sparc), and Intel Itanium (ia64). Continue Reading…

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On May 4th 2013, Debian Team announced the release of the Debian 7.0 called Wheezy after many months of development. This new Debian version includes numerous features as multiarch support, several specific tools to deploy private clouds, an improved installer, and a complete set of multimedia codecs and front-ends which remove the need for third-party repositories.

This release includes numerous updated software packages, such as:

  • Apache 2.2.22
  • Asterisk 1.8.13.1
  • GIMP 2.8.2
  • an updated version of the GNOME desktop environment 3.4
  • GNU Compiler Collection 4.7.2
  • Icedove 10 (an unbranded version of Mozilla Thunderbird)
  • Iceweasel 10 (an unbranded version of Mozilla Firefox)
  • KDE Plasma Workspaces and KDE Applications 4.8.4
  • kFreeBSD kernel 8.3 and 9.0
  • LibreOffice 3.5.4
  • Linux 3.2
  • MySQL 5.5.30
  • Nagios 3.4.1
  • OpenJDK 6b27 and 7u3
  • Perl 5.14.2
  • PHP 5.4.4
  • PostgreSQL 9.1
  • Python 2.7.3 and 3.2.3
  • Samba 3.6.6
  • Tomcat 6.0.35 and 7.0.28
  • Xen Hypervisor 4.1.4
  • the Xfce 4.8 desktop environment
  • X.Org 7.7
  • more than 36,000 other ready-to-use software packages, built from nearly 17,500 source packages.

You can find more just by reading the official announcement from here: http://www.debian.org/News/2013/20130504?utm_source=feedly

A majority of the Linux based users usually wonder the reason why they cannot use the Google Drive over Linux platforms. You could also find them wondering if there is any alternative of Google Drive for the Linux users in the market. The fact is you could find alternative to the Google Drive for the Linux based users, which many of these users are not aware about it. People who do not know that they can find alternative to Google Drive go to the extent of thinking that Linux is not a good option in comparison to Windows.

However, this logic is only valid to the ignorant users as it’s really unfair to vouch for this thinking. Whatever you could do at the Windows, can be easily be carried out over the Linux based systems seeking the help of a couple of good alternatives. Well let’s check out the five great alternatives of Google Drive perfect for all the Linux based users in the following paragraphs.


1). Dropbox

The first and popular alternative to Google Drive for Linux users is Dropbox, which gives far better client ecosystem than Google. It gives you a perfect platform for all kinds of users including the ones belonging to Linux. Dropbox offers around 2GB of free space to its users, however, you could secure 16GB of space by simply referring to any of your friend and the chain multiplies you get 500 MB for each referral. Though the initial 2GB space could be lesser than the Google Drive yet you may end up getting free space without actually paying a single buck. In terms of features Dropbox happens to be quite similar to the Google Drive, which offers you a particular folder that could be synched between your PCs. And in terms of security, Dropbox happens to be a better option than Google Drive by incorporating two-step authentication elements.

2). Ubuntu One

Another alternative is Ubuntu wherein you could see an element called Ubuntu One already installed in it. Unlike its rival Google Drive, Ubuntu gives you the free cloud storage of 5 GB. But at the same time, with the referral program like what you find in Dropbox, you could end up getting additional free space up to the maximum of 20 GB and more. You can easily Continue Reading…

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