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Updated README.md and FAQ.md

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Markus Fleschutz
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README.md
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Collection of PowerShell Scripts
================================
**This repository contains 120+ useful and cross-platform PowerShell scripts in the [Scripts/](Scripts/) subfolder - to be used by command-line interface (CLI), for remote control (RC), by context menu, by voice control, by automation software like Jenkins, automatically as daily tasks, or simply to learn PowerShell. See the [FAQ page](Misc/FAQ.md) if you need help or have questions.**
**This repository contains 120+ useful and cross-platform PowerShell scripts in the [Scripts/ folder](Scripts/) - to be used by command-line interface (CLI), for remote control (RC), by context menu, by voice control, by automation software like Jenkins, automatically as daily tasks, or simply to learn PowerShell. See the [FAQ page](Misc/FAQ.md) if you need help or have any question.**
Table of Contents
-----------------
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* [write-vertical.ps1](Scripts/write-vertical.ps1) - writes the given text in vertical direction
* [zip-dir.ps1](Scripts/zip-dir.ps1) - creates a zip archive of the given directory
What is PowerShell?
-------------------
PowerShell is a task automation and configuration management framework from Microsoft, consisting of a command-line shell and associated scripting language.
* **it's powerful**: fully control your computer
* **it's cross-platform**: available for Linux, Mac OS and Windows
* **it's open-source**: see the Github repository at https://github.com/PowerShell/PowerShell
* **it's easy to learn**: see the tutorial at https://www.guru99.com/powershell-tutorial.html
* **it's fully documented**: see the official docs at https://docs.microsoft.com/en-us/powershell/
How to get PowerShell?
----------------------
* **Windows 7 and newer** do provide PowerShell by default. It's recommended to install **Windows Terminal** (see the Microsoft Store at https://www.aka.ms/terminal) for a comfortable command-line usage. Per default, Windows does not allow script execution (execution policy "restricted"). To enable this, enter as administrator:
```
$ Set-ExecutionPolicy RemoteSigned
```
* **On CentOS, Debian, Docker, Fedora, macOS, openSUSE, Red Hat, Ubuntu** visit https://github.com/PowerShell/PowerShell for installation.
Afterward, install this collection by clicking on the green "Code" button or execute:
```
$ git clone https://github.com/fleschutz/PowerShell
```
Configure PowerShell as Default Shell
-------------------------------------
* **Linux:** make sure PowerShell is installed, then execute: `chsh -s /bin/powershell <username>`
* **Windows:** no need to, PowerShell is the default shell
Adding the Scripts to the Search Path
-------------------------------------
Want to use the PowerShell scripts everywhere on the command-line? Then you need to add the Scripts/ subfolder to the search path:
* **Bash or sh:** edit .profile in your home directory and add the line: PATH="$PATH:/path/to/PowerShell/Scripts"
* **Windows:** open the environment variables dialogue and add the full path to Scripts/ to the system environment variable "Path"
Using PowerShell in Context Menus
----------------------------------
* to enable "right-click > New > Windows PowerShell Script" execute `Add_ps1_to_New_context_menu.reg` in subfolder [Misc/](Misc)
* to disable this execute `Remove_ps1_from_New_context_menu.reg` in subfolder [Misc/](Misc)
Script Conventions
------------------
Each PowerShell script should follow the 9 golden rules:
1. the filename should be named `<verb>-<object>.ps1`
2. the first line reads `#!/bin/powershell` to support PowerShell on Linux
3. the script has execute file permissions (chmod a+rx <file>) to support PowerShell on Linux
4. provide a comment-based help with syntax, description, link, author, and license
5. check the requirements (e.g. #Requires -RunAsAdministrator, or #Requires -Version 3)
6. prefer command-line options, else ask the user
7. use `Set-StrictMode -Version Latest` to enable additional error checking
8. for readibility use UpperCamelCase for variables and functions, lowerCamelCase for everything else
9. exit 0 for success, else print an error message and exit with the error code (mostly 1)
Feedback
--------
Send your email feedback to: markus [at] fleschutz [dot] de