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#!/usr/bin/env python3 – Execute with a Python interpreter, using the env program search path to find it #!/bin/false – Do nothing, but return a non-zero exit status , indicating failure. Used to prevent stand-alone execution of a script file intended for execution in a specific context, such as by the . command from sh/bash, source from ...
PowerShell. PowerShell is a task automation and configuration management program from Microsoft, consisting of a command-line shell and the associated scripting language. Initially a Windows component only, known as Windows PowerShell, it was made open-source and cross-platform on August 18, 2016, with the introduction of PowerShell Core. [4]
Shells may record a history of directories the user has been in and allow for fast switching to any recorded location. This is referred to as a "directory stack". The concept had been realized as early as 1978 [ 50 ] in the release of the C shell (csh). PowerShell allows multiple named stacks to be used.
The wsl.exe command is used to manage distributions in the Windows Subsystem for Linux on the command-line. It can list available distributions, set a default distribution, and uninstall distributions. [32] The command can also be used to run Linux binaries from the Windows Command Prompt or Windows PowerShell.
The -n option to xargs specifies how many arguments at a time to supply to the given command. The command will be invoked repeatedly until all input is exhausted. Note that on the last invocation one might get fewer than the desired number of arguments if there is insufficient input. Use xargs to break up the input into two arguments per line:
In computing, tee is a command in command-line interpreters (shells) using standard streams which reads standard input and writes it to both standard output and one or more files, effectively duplicating its input. [1] It is primarily used in conjunction with pipes and filters.
PATH (variable) PATH is an environment variable on Unix-like operating systems, DOS, OS/2, and Microsoft Windows, specifying a set of directories where executable programs are located. In general, each executing process or user session has its own PATH setting.
There are several ways to force line breaks and paragraph breaks in the text. The simplest method is by inserting newlines; for example: Markup. Renders as. A single newline in the markup. does not cause a visible line break. A single newline in the markup does not cause a visible line break. Two newlines in the markup.