PowerShell if expressions cheatsheet.

README.md

PowerShell if expressions cheatsheet

String
Is equal (case insensitive)	if ($VAR1 -eq $VAR2)
Is equal (case insensitive) *	if ($VAR1 -ieq $VAR2)
Is equal (case sensitive)	if ($VAR1 -ceq $VAR2)
Regular expression **	if ($VAR1 -match "RegExp")
Numeric
Is equal	if ($VAR1 -eq $VAR2)
Not equal	if ($VAR1 -ne $VAR2)
Less than	if ($VAR1 -lt $VAR2)
Less than or equal	if ($VAR1 -le $VAR2)
Greater than	if ($VAR1 -gt $VAR2)
Greater than or equal	if ($VAR1 -ge $VAR2)
Array
Contains	if (@("one") -ccontains "one")
Not contains	if (@("one") -notcontains "one")

• * By default all PowerShell all comparison operators are case-insensitive.
  • Prefixing with i makes this explicit.
  • Prefixing with c makes this case-sensitive.
• ** Regular expression matches will be available in $Matches[].

Reference

• about_Comparison_Operators: https://technet.microsoft.com/en-us/library/hh847759.aspx