Power shell basics day 6
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This document discusses various conditional execution statements in PowerShell including If, do while, while, do until, For, ForEach, and Switch. It provides examples of syntax for If, For, and ForEach statements. The For statement runs code a specified number of times, ForEach iterates through items in a collection like an array, and Switch functions like a loop to evaluate multiple conditions.
Power shell basics day 6
- 1. Day 6
- 2. Conditional Execution • If Statement PowerShell's 'If' statement comes under the umbrella of flow control. Once you master the basic construction then you can increase its usefulness by appending, 'Else' and 'ElseIf' statements. Example
- 3. Conditional Execution (Conti…) • do while - Script block executes as long as condition value = True. • while - Same as “do while.” • do until – Script block executes until the condition value = True.
- 4. Conditional Execution (Conti…) • For The standard use of the for statement it to run the code block a specified number of times. Syntax: for (initialization; condition; repeat) {code block}
- 5. Conditional Execution (Conti…) • ForEach The foreach statement (also known as a foreach loop) is a language construct for stepping through (iterating) a series of values in a collection of items. The simplest and most typical type of collection to traverse is an array. Within a foreach loop it’s common to run one or more commands against each item in an array. Syntax: foreach ($<item> in $<collection>) {code block}
- 6. Conditional Execution (Conti…) • Switch Switch is not only a condition, but also functions like a loop.That makes Switch one of the most powerful statements in PowerShell. Switch works almost exactly like the Foreach loop
- 7. Thank you!