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Powershell supports three types of brackets.
-
Parenthesis brackets. − ()
-
Braces brackets. − {}
-
Square brackets. − []
Parenthesis brackets
This type of brackets is used to
-
pass arguments
-
enclose multiple set of instructions
-
resolve ambiguity
-
create array
Example
> $array = @("item1", "item2", "item3") > foreach ($element in $array) { $element } item1 item2 item3
Braces brackets
This type of brackets is used to
-
enclose statements
-
block commands
Example
$x = 10 if($x -le 20){ write-host("This is if statement") }
This will produce the following result −
Output
This is if statement.
Square brackets
This type of brackets is used to
-
access to array
-
access to hashtables
-
filter using regular expression
Example
> $array = @("item1", "item2", "item3") > for($i = 0; $i -lt $array.length; $i++){ $array[$i] } item1 item2 item3 >Get-Process [r-s]* Handles NPM(K) PM(K) WS(K) VM(M) CPU(s) Id ProcessName ------- ------ ----- ----- ----- ------ -- ----------- 320 72 27300 33764 227 3.95 4028 SCNotification 2298 77 57792 48712 308 2884 SearchIndexer ...
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