\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
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%\usepackage[utf8x]{inputenc}    % For unicode character support
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\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{giangpdh}
\pdfinfo{
  /Title (powershell.pdf)
  /Creator (Cheatography)
  /Author (giangpdh)
  /Subject (PowerShell Cheat Sheet)
}

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\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
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\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{PowerShell Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{giangpdh} via \textcolor{DarkBackground}{\uline{cheatography.com/137135/cs/36171/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}giangpdh \\
  \uline{cheatography.com/giangpdh} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 19th December, 2022.\\
   Updated 21st December, 2022.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
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% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{2.584 cm} x{2.508 cm} x{2.508 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Working with variables}}  \tn
% Row 0
\SetRowColor{LightBackground}
\{\{width=40\}\}To create a new variable, use an assignment statement to assign a value to the variable. & \$MyVariable = 1, 2, 3\{\{nl\}\}\$Path = "C:\textbackslash{}Windows\textbackslash{}System32" &  \tn 
% Row Count 8 (+ 8)
% Row 1
\SetRowColor{white}
To display the value of a variable, type the variable name, preceded by a dollar sign (\$). & \$MyVariable & 1\{\{nl\}\}2\{\{nl\}\}3 \tn 
% Row Count 15 (+ 7)
% Row 2
\SetRowColor{LightBackground}
To change the value of a variable, assign a new value to the variable. & \$MyVariable = "The green cat."\{\{nl\}\}\$MyVariable & The green cat. \tn 
% Row Count 21 (+ 6)
% Row 3
\SetRowColor{white}
To delete the value of a variable, use the \seqsplit{Clear-Variable} cmdlet or change the value to \$null. & \seqsplit{Clear-Variable} -Name MyVariable \{\{nl\}\}\$MyVariable = \$null &  \tn 
% Row Count 29 (+ 8)
% Row 4
\SetRowColor{LightBackground}
To delete the variable, use \seqsplit{Remove-Variable} or Remove-Item. & \seqsplit{Remove-Variable} -Name MyVariable\{\{nl\}\}Remove-Item -Path Variable:\textbackslash{}MyVariable &  \tn 
% Row Count 35 (+ 6)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{2.584 cm} x{2.508 cm} x{2.508 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Working with variables (cont)}}  \tn
% Row 5
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{To get a list of all the variables in your PowerShell session, type Get-Variable.} \tn 
% Row Count 2 (+ 2)
% Row 6
\SetRowColor{white}
Variables are useful for storing the results of commands. & \$Processes = Get-Process\{\{nl\}\}\$Today = \seqsplit{(Get-Date).DateTime} &  \tn 
% Row Count 7 (+ 5)
% Row 7
\SetRowColor{LightBackground}
It is also possible to assign values to multiple variables with one statement. & \$a = \$b = \$c = 0 &  \tn 
% Row Count 13 (+ 6)
% Row 8
\SetRowColor{white}
The next example assigns multiple values to multiple variables. & \$i,\$j,\$k = 10, "red", \$true\{\{nl\}\}\$i,\$j = 10, "red", \$true & \# \$i is 10, \$j is "red", \$k is True\{\{nl\}\}\# \$i is 10, \$j is {[}object{[}{]}{]}, Length 2 \tn 
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\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4.24 cm} x{3.76 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Types of variables}}  \tn
% Row 0
\SetRowColor{LightBackground}
\{\{width=50\}\}\$a = 12 & System.Int32 \tn 
% Row Count 1 (+ 1)
% Row 1
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\$a = "Word" & System.String \tn 
% Row Count 2 (+ 1)
% Row 2
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\$a = 12, "Word" & array of System.Int32, System.String \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
\$a = Get-ChildItem C:\textbackslash{}Windows & FileInfo and DirectoryInfo types \tn 
% Row Count 6 (+ 2)
% Row 4
\SetRowColor{LightBackground}
To use cast notation, enter a type name, enclosed in brackets, before the variable name (on the left side of the assignment statement). & {[}int{]}\$number = 8 \tn 
% Row Count 13 (+ 7)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.04 cm} x{4.96 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Variable substitution in strings}}  \tn
% Row 0
\SetRowColor{LightBackground}
\{\{width=40\}\}Concatenation & \$name = 'Kevin Marquette' \{\{nl\}\}\$message = 'Hello, ' + \$name \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
Variable substitution & \$first = 'Kevin' \{\{nl\}\}\$last = 'Marquette' \{\{nl\}\}\$message = "Hello, \$first \$last." \tn 
% Row Count 7 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Arrays}}  \tn
% Row 0
\SetRowColor{LightBackground}
\{\{width=40\}\}To create and initialize an array, assign multiple values to a variable. & \$A = 22,5,10,8,12,9,80 \tn 
% Row Count 5 (+ 5)
% Row 1
\SetRowColor{white}
The array sub-expression operator creates an array from the statements inside it. & @( ... ) \{\{nl\}\}\$a = @("Hello World") \{\{nl\}\}\$p = @(Get-Process Notepad) \tn 
% Row Count 10 (+ 5)
% Row 2
\SetRowColor{LightBackground}
Where-Object filtering & \$data | Where-Object \{\$\_.FirstName -eq 'Kevin'\} \{\{nl\}\} \$data | Where FirstName -eq Kevin \tn 
% Row Count 15 (+ 5)
% Row 3
\SetRowColor{white}
Where() & \$data.Where(\{\$\_.FirstName -eq 'Kevin'\}) \tn 
% Row Count 17 (+ 2)
% Row 4
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Selects objects or object properties. & Get-Process | Select-Object -Property ProcessName, Id, WS \tn 
% Row Count 20 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Hash Tables}}  \tn
% Row 0
\SetRowColor{LightBackground}
\{\{width=50\}\}To create an empty hashtable in the value of \$hash, type: & \$hash = @\{\} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
You can also add keys and values to a hashtable when you create it. & \$hash = @\{ Number = 1; Shape = "Square"; Color = "Blue"\} \tn 
% Row Count 8 (+ 4)
% Row 2
\SetRowColor{LightBackground}
To display a hashtable that's saved in a variable, type the variable name. & \$hash \tn 
% Row Count 12 (+ 4)
% Row 3
\SetRowColor{white}
hashtables have Keys and Values properties. & \$hash.keys\{\{nl\}\}\$hash.values \tn 
% Row Count 15 (+ 3)
% Row 4
\SetRowColor{LightBackground}
You can iterate over the keys in a hashtable to process the values in several ways. & foreach (\$Key in \$hash.Keys) \{\{\{nl\}\}~~~~"The value of '\$Key' is: \$(\$hash{[}\$Key{]})" \{\{nl\}\}\} \tn 
% Row Count 21 (+ 6)
% Row 5
\SetRowColor{white}
To add keys and values to a hashtable, use the following command format. & \$hash{[}"\textless{}key\textgreater{}"{]} = "\textless{}value\textgreater{}" \{\{nl\}\}\$hash{[}"Time"{]} = "Now" \tn 
% Row Count 25 (+ 4)
% Row 6
\SetRowColor{LightBackground}
You can also add keys and values to a hashtable using the Add method of the \seqsplit{System.Collections.Hashtable} object. & Add(Key, Value) \{\{nl\}\}\$hash.Add("Time", "Now") \tn 
% Row Count 31 (+ 6)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.92 cm} x{4.08 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{PSCustomObject}}  \tn
% Row 0
\SetRowColor{LightBackground}
\{\{width=30\}\}Creating a PSCustomObject & \$myObject = {[}PSCustomObject{]}@\{\{\{nl\}\}     ~~~~Name     = 'Kevin'     \{\{nl\}\}~~~~Language = 'PowerShell'     \{\{nl\}\}~~~~State    = 'Texas' \{\{nl\}\}\} \tn 
% Row Count 11 (+ 11)
% Row 1
\SetRowColor{white}
Converting a hashtable & \$myHashtable = @\{\{\{nl\}\}     ~~~~Name     = 'Kevin'     \{\{nl\}\}~~~~Language = 'PowerShell'     \{\{nl\}\}~~~~State    = 'Texas' \{\{nl\}\}\} \{\{nl\}\}\{\{nl\}\}\$myObject = {[}pscustomobject{]}\$myHashtable \tn 
% Row Count 24 (+ 13)
% Row 2
\SetRowColor{LightBackground}
Saving to a file & \$myObject | ConvertTo-Json -depth 1 | Set-Content -Path \$Path \{\{nl\}\}\$myObject = Get-Content -Path \$Path | ConvertFrom-Json \tn 
% Row Count 31 (+ 7)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{3.92 cm} x{4.08 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{PSCustomObject (cont)}}  \tn
% Row 3
\SetRowColor{LightBackground}
Adding properties & \$myObject | Add-Member -MemberType NoteProperty -Name 'ID' -Value 'KevinMarquette'\{\{nl\}\}\$myObject.ID \tn 
% Row Count 5 (+ 5)
% Row 4
\SetRowColor{white}
Remove properties & \seqsplit{\$myObject.psobject.properties.remove('ID')} \tn 
% Row Count 8 (+ 3)
% Row 5
\SetRowColor{LightBackground}
Enumerating property names & \$myObject | Get-Member -MemberType NoteProperty | Select -ExpandProperty Name \tn 
% Row Count 12 (+ 4)
% Row 6
\SetRowColor{white}
Dynamically accessing properties & \$myObject.'Name' \tn 
% Row Count 14 (+ 2)
% Row 7
\SetRowColor{LightBackground}
Convert PSCustomObject into a hashtable & \$hashtable = @\{\} \{\{nl\}\}foreach( \$property in \seqsplit{\$myobject.psobject.properties.name} ) \{\{nl\}\}\{     \{\{nl\}\}~~~~\$hashtable{[}\$property{]} = \seqsplit{\$myObject.\$property} \{\{nl\}\}\} \tn 
% Row Count 23 (+ 9)
% Row 8
\SetRowColor{white}
Testing for properties & if( \$null -ne \$myObject.ID )\{\{nl\}\}if( \seqsplit{\$myobject.psobject.properties.match('ID').Count} ) \tn 
% Row Count 28 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.36 cm} x{4.64 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\{\{width=30\}\}A simple function & function Get-Version \{ \{\{nl\}\} ~~~~ \seqsplit{\$PSVersionTable.PSVersion} \{\{nl\}\} \} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
Parameters & function Test-MrParameter \{ \{\{nl\}\}~~~~ param ( \{\{nl\}\} ~~~~~~~~ \$ComputerName \{\{nl\}\} ~~~~ ) \{\{nl\}\} ~~~~ Write-Output \$ComputerName \{\{nl\}\} \} \tn 
% Row Count 15 (+ 11)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}