Select-String for searching in PowerShell - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the PowerShell cmdlet <code>Select-String</code> do?

Select-String searches text or files for patterns, like the 'find' command. It helps find lines that match a word or phrase.

beginner

How do you search for the word 'error' in a file named log.txt using Select-String?

Use: Select-String -Path log.txt -Pattern 'error'. This shows all lines with 'error' in the file.

intermediate

What does the -CaseSensitive parameter do in Select-String?

It makes the search match only exact letter cases. For example, searching 'Error' won't find 'error' if -CaseSensitive is used.

intermediate

How can you search multiple files at once with Select-String?

Use wildcards in the -Path parameter, like Select-String -Path *.txt -Pattern 'warning' to search all text files.

beginner

What output does Select-String provide when it finds matches?

It shows the file name, line number, and the matching line of text. This helps you quickly find where the pattern appears.

Which parameter specifies the text or files to search in Select-String?

A -Pattern

B -Path

C -CaseSensitive

D -Match

-Path tells Select-String where to look (files or text). -Pattern is what to search for.

How do you make Select-String search case-sensitively?

A Add <code>-CaseSensitive</code>

B Add <code>-IgnoreCase</code>

C Use <code>-ExactMatch</code>

D Use <code>-MatchCase</code>

-CaseSensitive makes the search respect letter case.

What does Select-String output when it finds a match?

A File name, line number, and matching line

B The whole file content

C Only the matching word

D Number of matches only

The output shows file name, line number, and the full line containing the match.

Which wildcard can you use to search all text files with Select-String?

A file*

B file?.txt

C all.txt

D *.txt

*.txt matches all files ending with .txt.

What is the purpose of the -Pattern parameter?

A To specify files to search

B To output results to a file

C To specify the text or regex to find

D To set case sensitivity

-Pattern tells Select-String what text or pattern to look for.

Explain how to use Select-String to find a word in multiple files and what output you expect.

Think about searching all .txt files for a word and what you see after running the command.

Describe the effect of the -CaseSensitive parameter in Select-String.

Consider how searching for 'Error' differs from 'error' with this option.