PowerShell can use the typical logical operators most scripting and programming languages use. The following table shows which operators are available in PowerShell:
|
Operator
|
Meaning
|
Description
|
|
-and |
Combines two expressions with AND |
Returns true if both are true. |
|
-or |
Combines two expressions with OR |
Returns true if one or both are true. |
|
-xor |
Combines two expressions with XOR |
Returns true if one of the expressions is true and the other one is false. |
|
-not |
Negate |
Negates the expression. |
|
! |
Negate |
Negates the expression. |
Some examples are as follows:
# Initialization of variables
$numericValue = 1.337
$stringValue = 'Let make PowerShell great'
# combining expressions with -and
# try always to use parentheses to prevent errors and make the code better readable
($numericValue -gt 1) -and ($stringValue -like '*PowerShell*') # true
($numericValue -gt 2) -and ($stringValue -like '*PowerShell*') # false
($numericValue -gt 2) -and ($stringValue -like '*Power1Shell*') # false
# combining expressions with -or
($numericValue -gt 1) -or ($stringValue -like '*PowerShell*') # true
($numericValue -gt 2) -or ($stringValue -like '*PowerShell*') # true
($numericValue -gt 2) -or ($stringValue -like '*Power1Shell*') # false
# combining expressions with -xor
($numericValue -gt 1) -xor ($stringValue -like '*PowerShell*') # false
($numericValue -gt 2) -xor ($stringValue -like '*PowerShell*') # true
($numericValue -gt 2) -xor ($stringValue -like '*Power1Shell*') # false
# negate with -not and !
($numericValue -gt 1) -and -not ($stringValue -like '*PowerShell*') # false
! ($numericValue -gt 2) -and ($stringValue -like '*PowerShell*') # true
! ($numericValue -gt 2) -and -not ($stringValue -like '*Power1Shell*') # true