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  2. Shellshock (software bug) - Wikipedia

    en.wikipedia.org/wiki/Shellshock_(software_bug)

    Shellshock, also known as Bashdoor, [1] is a family of security bugs [2] in the Unix Bash shell, the first of which was disclosed on 24 September 2014.Shellshock could enable an attacker to cause Bash to execute arbitrary commands and gain unauthorized access [3] to many Internet-facing services, such as web servers, that use Bash to process requests.

  3. List of GNU Core Utilities commands - Wikipedia

    en.wikipedia.org/wiki/List_of_GNU_Core_Utilities...

    This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems. GNU Core Utilities include basic file, shell and text manipulation utilities. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.

  4. Bash (Unix shell) - Wikipedia

    en.wikipedia.org/wiki/Bash_(Unix_shell)

    Bash can execute the vast majority of Bourne shell scripts without modification, with the exception of Bourne shell scripts stumbling into fringe syntax behavior interpreted differently in Bash or attempting to run a system command matching a newer Bash builtin, etc. Bash command syntax includes ideas drawn from the Korn Shell (ksh) and the C ...

  5. Restricted shell - Wikipedia

    en.wikipedia.org/wiki/Restricted_shell

    The restricted shell is a Unix shell that restricts some of the capabilities available to an interactive user session, or to a shell script, running within it.It is intended to provide an additional layer of security, but is insufficient to allow execution of entirely untrusted software.

  6. GNU Readline - Wikipedia

    en.wikipedia.org/wiki/GNU_Readline

    GNU Readline is a software library that provides in-line editing and history capabilities for interactive programs with a command-line interface, such as Bash. It is currently maintained by Chet Ramey as part of the GNU Project .

  7. Linux Documentation Project - Wikipedia

    en.wikipedia.org/wiki/Linux_Documentation_Project

    The Linux Documentation Project (LDP) is a dormant all-volunteer project that maintains a large collection of GNU and Linux-related documentation and publishes the collection online. [1] It began as a way for hackers to share their documentation with each other and with their users, and for users to share documentation with each other.

  8. Dirty COW - Wikipedia

    en.wikipedia.org/wiki/Dirty_COW

    Dirty COW (Dirty copy-on-write) is a computer security vulnerability of the Linux kernel that affected all Linux-based operating systems, including Android devices, that used older versions of the Linux kernel created before 2018.

  9. true and false (commands) - Wikipedia

    en.wikipedia.org/wiki/True_and_false_(commands)

    The commands can be used to ignore the success or failure of a sequence of other commands, as in the example: make … && false Setting a user's login shell to false , in /etc/passwd , effectively denies them access to an interactive shell, but their account may still be valid for other services, such as FTP .