In this article. Like many other languages, PowerShell has statements for conditionally executing code in your scripts. One of those statements is the If statement. Today we will take a deep dive into one of the most fundamental commands in PowerShell.
Powershell - If Statement, An if statement consists of a Boolean expression followed by one or more statements.
I am in need to create a script which can continuously read a file and if a certain line with text comes, to call a function. I am thinking in a way to do this a single line thing with Get-Content -
PowerShell allows you to nest If and Else statements within If and Else statements (incoming Inception vibes). Nested conditional statements basically cycle through the statement until either a statement is returned true or until all statements are returned false.
I'm trying to go through the Active Directory, and grab users who meet a certain criteria. I want to get users have either Manager A or Manager B, but I'm not sure how to implement the or statement...
When a script, function, or filter begins execution, each parameter is initialized to its corresponding argument's value. If there is no corresponding argument and a default value ( §8.10.4) is supplied, that value is used; otherwise, the value $null is used. As such, each parameter is a new variable just as if it was initialized by assignment at the start of the script-block.
When a script, function, filter, or cmdlet is invoked, each argument can be bound to the corresponding parameter by position, with the first parameter having position zero.
The first command in a pipeline is an expression or a command invocation. Typically, a command invocation begins with a command-name, which is usually a bare identifier. command-elements represents the argument list to the command. A newline or n unescaped semicolon terminates a pipeline.
If the statement writes multiple values, the value of the statement is that set of values stored in elements of an unconstrained 1-dimensional array, in the order in which they were written. Consider the following example:
A statement label is used as the optional target of a break ( §8.5.1) or continue ( §8.5.2) statement. However, a label does not alter the flow of control.
To prevent unreachable catch clauses in a try block, a catch clause may not specify an exception type that is equal to or derived from a type that was specified in an earlier catch clause within that same try block. The statements of a finally block are always executed when control leaves a try statement.
When a script, function, or filter is used in a pipeline, a collection of values is delivered to that script or function. The script, function, or filter gets access to that collection via the enumerator $input ( §2.3.2.2, §4.5.16 ), which is defined on entry to that script, function, or filter.
When a script, function, or filter begins execution, each parameter is initialized to its corresponding argument's value. If there is no corresponding argument and a default value ( §8.10.4) is supplied, that value is used; otherwise, the value $null is used. As such, each parameter is a new variable just as if it was initialized by assignment at the start of the script-block.
When a script, function, filter, or cmdlet is invoked, each argument can be bound to the corresponding parameter by position, with the first parameter having position zero.
The first command in a pipeline is an expression or a command invocation. Typically, a command invocation begins with a command-name, which is usually a bare identifier. command-elements represents the argument list to the command. A newline or n unescaped semicolon terminates a pipeline.
If the statement writes multiple values, the value of the statement is that set of values stored in elements of an unconstrained 1-dimensional array, in the order in which they were written. Consider the following example:
A statement label is used as the optional target of a break ( §8.5.1) or continue ( §8.5.2) statement. However, a label does not alter the flow of control.
To prevent unreachable catch clauses in a try block, a catch clause may not specify an exception type that is equal to or derived from a type that was specified in an earlier catch clause within that same try block. The statements of a finally block are always executed when control leaves a try statement.
When a script, function, or filter is used in a pipeline, a collection of values is delivered to that script or function. The script, function, or filter gets access to that collection via the enumerator $input ( §2.3.2.2, §4.5.16 ), which is defined on entry to that script, function, or filter.