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  2. getopts - Wikipedia

    en.wikipedia.org/wiki/Getopts

    A common value is all the parameters, "$@" in POSIX shell. This value exists in getopts but is rarely used, since it can just access the shell's parameters. It is useful with resetting the parser, however. The varname part of getopts names a shell variable to store the option parsed into. The way one uses the commands however varies a lot:

  3. Shell script - Wikipedia

    en.wikipedia.org/wiki/Shell_script

    Editing a FreeBSD shell script for configuring ipfirewall. A shell script is a computer program designed to be run by a Unix shell, a command-line interpreter. [1] The various dialects of shell scripts are considered to be command languages. Typical operations performed by shell scripts include file manipulation, program execution, and printing ...

  4. shar (file format) - Wikipedia

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

    In the Unix operating system, shar (from "shell archive") is an archive format created with the Unix shar utility. A shar file is a type of self-extracting archive, because it is a valid shell script, and executing it will recreate the files. To extract the files, only the standard Unix Bourne shell sh is usually required.

  5. Environment variable - Wikipedia

    en.wikipedia.org/wiki/Environment_variable

    A running program can access the values of environment variables for configuration purposes. Shell scripts and batch files use environment variables to communicate data and preferences to child processes. They can also be used to store temporary values for reference later in a shell script.

  6. Comparison of command shells - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_command_shells

    Variable completion is the completion of the name of a variable name (environment variable or shell variable). Bash, zsh, and fish have completion for all variable names. PowerShell has completions for environment variable names, shell variable names and — from within user-defined functions — parameter names.

  7. 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 ...

  8. Inter Milan reaches Italian Cup quarterfinals after Asllani ...

    www.aol.com/inter-milan-reaches-italian-cup...

    A much-changed Inter Milan side eased to a 2-0 victory over Udinese in the Italian Cup on Thursday. Marko Arnautović and Kristjan Asllani netted in the first half to help Inter set up a ...

  9. AWK - Wikipedia

    en.wikipedia.org/wiki/AWK

    The shell script makes an environment variable pattern containing the first argument, then drops that argument and has awk look for the pattern in each file. ~ checks to see if its left operand matches its right operand; !~ is its inverse. A regular expression is just a string and can be stored in variables.