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  2. Path (computing) - Wikipedia

    en.wikipedia.org/wiki/Path_(computing)

    A path (or filepath, file path, pathname, or similar) is a string of characters used to uniquely identify a location in a directory structure. It is composed by following the directory tree hierarchy in which components, separated by a delimiting character, represent each directory.

  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. Perl - Wikipedia

    en.wikipedia.org/wiki/Perl

    Perl borrows features from other programming languages including C, sh, AWK, and sed. [1] It provides text processing facilities without the arbitrary data-length limits of many contemporary Unix command line tools. [16] Perl is a highly expressive programming language: source code for a given algorithm can be short and highly compressible. [17 ...

  5. Goto - Wikipedia

    en.wikipedia.org/wiki/Goto

    In Perl, there is a variant of the goto statement that is not a traditional GOTO statement at all. It takes a function name and transfers control by effectively substituting one function call for another (a tail call ): the new function will not return to the GOTO, but instead to the place from which the original function was called.

  6. Outline of Perl - Wikipedia

    en.wikipedia.org/wiki/Outline_of_Perl

    Shell scripting – perl is good for writing programs in the form of a series of commands to be run by the Unix shell, a command line interpreter. Such programs are called "scripts". In this regard, perl is considered to be a scripting language.

  7. Command-line argument parsing - Wikipedia

    en.wikipedia.org/wiki/Command-line_argument_parsing

    Command-line argument parsing is the process of analyzing and handling command-line input provided to a program.

  8. Perl language structure - Wikipedia

    en.wikipedia.org/wiki/Perl_language_structure

    Perl programmers may initialize a hash (or associative array) from a list of key/value pairs. If the keys are separated from the values with the => operator (sometimes called a fat comma ), rather than a comma, they may be unquoted (barewords [ 5 ] ).

  9. pushd and popd - Wikipedia

    en.wikipedia.org/wiki/Pushd_and_popd

    A representation of a stack. Elements are always 'pushed' to and 'popped' from the top. The directory stack underlies the functions of these two commands. It is an array of paths stored as an environment variable in the CLI, which can be viewed using the command dirs in Unix or Get-Location -stack in PowerShell.