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diff --git a/powershell.html.markdown b/powershell.html.markdown new file mode 100644 index 00000000..5ec18afb --- /dev/null +++ b/powershell.html.markdown @@ -0,0 +1,56 @@ +--- +category: tool +tool: powershell +contributors: + - ["Wouter Van Schandevijl", "https://github.com/laoujin"] +filename: LearnPowershell.ps1 +--- + +PowerShell is the Windows scripting language and configuration management framework from Microsoft built on the .NET Framework. Windows 7 and up ship with PowerShell. +Nearly all examples below can be a part of a shell script or executed directly in the shell. + +A key difference with Bash is that it is mostly objects that you manipulate rather than plain text. + +[Read more here.](https://technet.microsoft.com/en-us/library/bb978526.aspx) + +```powershell +# As you already figured, comments start with # + +# Simple hello world example: +echo Hello world! +# echo is an alias for Write-Output (=cmdlet) +# Most cmdlets and functions follow the Verb-Noun naming convention + +# Each command starts on a new line, or after semicolon: +echo 'This is the first line'; echo 'This is the second line' + +# Declaring a variable looks like this: +$Variable="Some string" +# Or like this: +$Variable1 = "Another string" + +# Using the variable: +echo $Variable +echo "$Variable" +echo '$($Variable + '1')' +echo @" +This is a Here-String +$Variable +"@ +# Note that ' (single quote) won't expand the variables! +# Here-Strings also work with single quote + +# Builtin variables: +# There are some useful builtin variables, like +echo "Booleans: $TRUE and $FALSE" +echo "Empty value: $NULL" +echo "Last program's return value: $?" +echo "Script's PID: $PID" +echo "Number of arguments passed to script: $#" +echo "All arguments passed to script: $Args" +echo "Script's arguments separated into different variables: $1 $2..." + +# Reading a value from input: +$Name = Read-Host "What's your name?" +echo "Hello, $Name!" +[int]$Age = Read-Host "What's your age?"
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