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Split and Join Operators

The Split and Join operators are used in PowerShell to divide and combine the substrings.

-Join Operator

The -Join operator is used in PowerShell to combine the set of strings into a single string. The strings are combined in the same order in which they appear in the command.

The following two statements are the syntax to use the Join operator:

In the above syntax, the <String> parameter is used to specify the one or more strings to be joined. And the <Delimiter> parameter is used to specify one or more characters placed between the combined strings. The default Delimiter is " ".

Note: If we use the unary join operator (-join <String>) to combine the strings, we must enclose them in parenthesis, or store them in a variable.

Examples: The below examples describe how to use the unary and binary (With Delimiter) Join operator in different ways:

Example1:

The command in this example displays the following output:

Windows 
Operating 
System 

Example2:

The command in this example displays the following output:

WindowsOperatingSystem

Example3:

The second command in this example displays the following output:

WindowsOperatingSystem 

Example4:

This example uses the multiple-character delimiter to join the three strings, which are stored in the variable $x. The second command in this example displays the following output:

WINDOWS POWERSHELL

-Split Operator

The -Split operator is used in PowerShell to divide the one or more strings into the substrings.

The following statements are the syntax to use the -split operator:

In the above Syntax, the following parameters are used:

  1. <string> : This parameter is used to specify the one or more string to be split. The same delimiter rule splits the multiple strings.
  2. <delimiter> : The default delimiter is " ". When the strings are split, it is omitted from all the substrings.
  3. <max-substrings> : This parameter is used to specify the maximum number of times that a string splits.
  4. <ScriptBlock> : This parameter is an expression that specifies the rules for applying the delimiter. We must enclose the script block in the braces"{}".
  5. <Options> : This parameter is valid only when the <max-substring> parameter is used in the statement.

Examples: The following examples describe how to use the -split operator in different ways:

Example 1:

This command displays the following output:

a
b
c
d
e
f
g
h

Example2:

The output of this example is the same as the output of example1.

Example3:

The output of this example is also same as the output of example1.

Example4:

This example displays the following output:

a
b
c=d=e=f=g=h

Example5:

This example displays the following output:

a=
=c=d=e=
=g=h

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