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  2. head (Unix) - Wikipedia

    en.wikipedia.org/wiki/Head_(Unix)

    head -n 20 filename. This displays the first 5 lines of all files starting with foo: head -n 5 foo* Most versions [citation needed] allow omitting n and instead directly specifying the number: -5. GNU head allows negative arguments for the -n option, meaning to print all but the last - argument value counted - lines of each input file.-c bytes

  3. List of POSIX commands - Wikipedia

    en.wikipedia.org/wiki/List_of_POSIX_commands

    Utilities listed in POSIX.1-2017 This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS). These commands can be found on Unix operating systems and most Unix-like operating systems.

  4. 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.

  5. Unix shell - Wikipedia

    en.wikipedia.org/wiki/Unix_shell

    tcsh and sh shell windows on a Mac OS X Leopard [1] desktop. A Unix shell is a command-line interpreter or shell that provides a command line user interface for Unix-like operating systems. The shell is both an interactive command language and a scripting language, and is used by the operating system to control the execution of the system using ...

  6. cut (Unix) - Wikipedia

    en.wikipedia.org/wiki/Cut_(Unix)

    In computing, cut is a command line utility on Unix and Unix-like operating systems which is used to extract sections from each line of input — usually from a file. It is currently part of the GNU coreutils package and the BSD Base System.

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  8. 5 Little Luxuries To Buy That’ll Help You With Your 2025 ...

    www.aol.com/5-little-luxuries-buy-ll-220016048.html

    Our favorite holiday recipes have 1 surprising ingredient in common. News. News. NBC Universal. More snow expected in Northeast and Great Lakes region ahead of Christmas. News. Associated Press.

  9. od (Unix) - Wikipedia

    en.wikipedia.org/wiki/Od_(Unix)

    od is one of the earliest Unix programs, having appeared in version 1 AT&T Unix. It is also specified in the POSIX standards. The implementation for od used on Linux systems is usually provided by GNU Core Utilities. Since it predates the Bourne shell, its existence causes an inconsistency in the do loop syntax.