How to remove all characters after a certain character in Notepad

To remove all characters after a specific character in Notepad , use Find and Replace with regex: press Ctrl H, enter the character followed by . in "Find what" (e.g., @.), leave "Replace with" empty or add the character to keep it, select "Regular expression", then click "Replace All".

To remove all characters after a certain character in Notepad , you can use the Find and Replace feature with regular expressions. This method is fast and efficient, especially when working with multiple lines.

Step 1: Open Find and Replace

Press Ctrl H to open the Replace dialog. Make sure you're in the "Replace" tab.

Step 2: Use Regular Expressions

Suppose you want to remove everything after the character @. You'd do the following:

• In the "Find what" field, enter: @.*
• Leave the "Replace with" field empty if you want to remove everything including and after @
• Or, if you want to keep the @ symbol, just replace with @

Make sure to select "Regular expression" at the bottom of the dialog. Do not check ". matches newline" unless needed.

Step 3: Apply the Change

Click "Replace All" to remove the characters across the entire document. If you only want to affect specific lines, highlight them first or use "Replace" step by step.

Example:
Before: [email protected]
After replacing @.* with nothing: john

Variations for Different Characters

This method works with any character. Just replace @ in the regex with your target character:

• For a dash (-): -.*
• For a comma (,): ,.*
• For a space: .* (space before .*)

If the character has special meaning in regex (like ., ?, *, $), escape it with a backslash. For example, to remove after a dot: \..*

Basically, it's a quick find-and-remove using pattern matching. Works reliably once the regex is set correctly.

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