In PowerShell, each cmdlet has a specific syntax. Similarly, it also has specific syntax for comment-based help. Scripts and functions can be documented with comment-based help topics. The stated syntax can be retrieved using the “help” comment keyword. Single-line comment-based help can be created by adding a “#” before each line while “<# and #>“ can be used to add a comment block.
The comment-based help syntax helps in writing the syntax for scripts and functions.
What is the Comment-Based Help Syntax in PowerShell?
Approach the following to get the:
- General Comment-Based Help Syntax
- Comment-Based Help Syntax in Functions
- Comment-Based Help Syntax in Scripts
Syntax 1: General Comment-Based Help Syntax
The following syntax is the single-line comment-based help. It can be created by simply placing the “#” symbol before the start of the line:
# <help content>
To create a multi-line comment, place the “<#” at the start and add “#>” at the end. The comment-based help command will be used inside the previously provided syntax along with the keyword:
.<help keyword>
<help content>
#>
That was the general comment-based syntax.
Syntax 2: Comment-Based Help Syntax in Functions
The help syntax of comment-based help in functions is given below. Both single-line and multi-line comment-based help syntax is placed within the function parentheses:
{
<#
.<help keyword>
<help content>
#>
# function logic
}
Syntax 3: Comment-Based Help Syntax in Scripts
The below-given syntax is for comment-based help in scripts. Both single-line and multi-line are placed outside the function parentheses whenever it is used with the scripts:
<#
.<help keyword>
<help content>
#>
That was all about the comment-based help syntax in PowerShell.
Conclusion
The syntax for comment-based help is simply a set of rules to follow while adding a single line and multiline help comments. Additionally, it can be included in scripts and functions. This blog demonstrated the syntax of comment-based help in PowerShell.
