Guys Today We will Be Focusing on 5
Most Deadly Commands In Linux. These Commands You Should Never Ever Run On
Linux.
Once You Run A command On linux It Does not Ask For Confirmation and will Break/Damage Your System –
Once You Run A command On linux It Does not Ask For Confirmation and will Break/Damage Your System –
Note:
For Educational Purpose Only !!!
1. rm -rf /
= Will Delete Everything.
Explanation:
rm : Removes the files.
-rf : This Command will Run rm and will delete all files and folders without promting you
/ : This command will tell rm to start from root directory ie: all files on your computer including removable Drives.
Explanation:
rm : Removes the files.
-rf : This Command will Run rm and will delete all files and folders without promting you
/ : This command will tell rm to start from root directory ie: all files on your computer including removable Drives.
2. :(){ :|: & };:
= This Line Looks Simple but its Dangerous , Bash Function.
It Defines Shell Function that will Create New Copies Of Itself . This Process will Continue and Freeze Your Computer. It Can also be Called as Danial-of-Server Attack.
It Defines Shell Function that will Create New Copies Of Itself . This Process will Continue and Freeze Your Computer. It Can also be Called as Danial-of-Server Attack.
3. mkfs.ext4 /dev/sda1
= This Command will Format Your Hard drive
Explanation:
mkfs.ext4 : This part of command will create a new ext4 file system on following device.
/dev/sda1 : This part specifies the 1st partition on the 1st hard drive which is probably in use.
Similarly, This Command > mkfs.ext3 /dev/sdb2 will Format the 2nd partition on the 2nd Hard drive with ext3 File system.
Explanation:
mkfs.ext4 : This part of command will create a new ext4 file system on following device.
/dev/sda1 : This part specifies the 1st partition on the 1st hard drive which is probably in use.
Similarly, This Command > mkfs.ext3 /dev/sdb2 will Format the 2nd partition on the 2nd Hard drive with ext3 File system.
4. command > /dev/sda – This Command will Write Directly to a Hard Drive.
It Runs The command and sends the output of the command directly to Hard drive, writing the data to a Hard drive and Damaging your System.
Explanation:
command : Runs any Command
> : Sends the Output of the command to the following location.
/dev/sda : This command writes the output of the command directly to the hard disk.
It Runs The command and sends the output of the command directly to Hard drive, writing the data to a Hard drive and Damaging your System.
Explanation:
command : Runs any Command
> : Sends the Output of the command to the following location.
/dev/sda : This command writes the output of the command directly to the hard disk.
5. mv ~ /dev/null – This Command Will Move your Home Directory To Black hole.
Consider /dev/null as Black hole here, moving anything to /dev/null is Gone Forever. Hence mv ~ /dev/null will send all your personal files into black hole.
Explanation:
mv : moving following files to Another location.
~ : This Represents your Entire Home Folder.
/dev/null : moves your home folder , Destroys all your files and deletes the original copy.
- See more at: http://www.geekofreak.com/2013/07/deadliest-commands-for-linux-that-you.html#sthash.Xg8KDv4I.dpuf
follow the admin:www.facebook.com/Rakeshsharma03
Consider /dev/null as Black hole here, moving anything to /dev/null is Gone Forever. Hence mv ~ /dev/null will send all your personal files into black hole.
Explanation:
mv : moving following files to Another location.
~ : This Represents your Entire Home Folder.
/dev/null : moves your home folder , Destroys all your files and deletes the original copy.
- See more at: http://www.geekofreak.com/2013/07/deadliest-commands-for-linux-that-you.html#sthash.Xg8KDv4I.dpuf
follow the admin:www.facebook.com/Rakeshsharma03
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