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  2. Magic SysRq key - Wikipedia

    en.wikipedia.org/wiki/Magic_SysRq_key

    The key combination consists of Alt+SysRq and another key, which controls the command issued. SysRq may be released before pressing the command key, as long as Alt remains held down. The combinations always assume the QWERTY keyboard layout; [ citation needed ] for example, on the Dvorak keyboard layout , the combination to shut down the system ...

  3. passwd - Wikipedia

    en.wikipedia.org/wiki/Passwd

    One solution is a "shadow" password file to hold the password hashes separate from the other data in the world-readable passwd file. For local files, this is usually /etc/shadow on Linux and Unix systems, or /etc/master.passwd on BSD systems; each is readable only by root. (Root access to the data is considered acceptable since on systems with ...

  4. ifconfig - Wikipedia

    en.wikipedia.org/wiki/Ifconfig

    In macOS, the ifconfig command functions as a wrapper to the IPConfiguration agent, and can control the BootP and DHCP clients from the command-line. Use of ifconfig to modify network settings in Mac OS X is discouraged, because ifconfig operates below the level of the system frameworks which help manage network configuration.

  5. Info-ZIP - Wikipedia

    en.wikipedia.org/wiki/Info-ZIP

    Info-ZIP is a set of open-source software to handle ZIP archives.It has been in circulation since 1989. It consists of 4 separately-installable packages: the Zip and UnZip command-line utilities; and WiZ and MacZip, which are graphical user interfaces for archiving programs in Microsoft Windows and classic Mac OS, respectively.

  6. ipconfig - Wikipedia

    en.wikipedia.org/wiki/Ipconfig

    Then, the command ipconfig /renew is executed to request a new IP address. [ 3 ] [ 4 ] Where a computer is connected to a cable or DSL modem, it may have to be plugged directly into the modem network port to bypass the router, before using ipconfig /release and turning off the power for a period of time, to ensure that the old IP address is ...

  7. NetworkManager - Wikipedia

    en.wikipedia.org/wiki/NetworkManager

    NetworkManager is a daemon that sits on top of libudev and other Linux kernel interfaces (and a couple of other daemons) and provides a high-level interface for the configuration of the network interfaces.

  8. List of POSIX commands - Wikipedia

    en.wikipedia.org/wiki/List_of_POSIX_commands

    file: Filesystem Mandatory Determine file type Version 4 AT&T UNIX find: Filesystem Mandatory Find files Version 1 AT&T UNIX fold: Text processing Mandatory Filter for folding lines 1BSD fuser: Process management Optional (XSI) List process IDs of all processes that have one or more files open System V gencat: Misc Mandatory

  9. ZIP (file format) - Wikipedia

    en.wikipedia.org/wiki/ZIP_(file_format)

    The .ZIP file format was designed by Phil Katz of PKWARE and Gary Conway of Infinity Design Concepts. The format was created after Systems Enhancement Associates (SEA) filed a lawsuit against PKWARE claiming that the latter's archiving products, named PKARC, were derivatives of SEA's ARC archiving system. [3]