Match End Of Line

Matches a string at the end of a line using regex syntax.

Terminal

<world>$

<world>$

#!/bin/bash

# Match End Of Line
{{world}}$

import subprocess

# Match End Of Line
# Make sure to replace <placeholders> with actual values
def run_command():
    cmd = [
        "world",
        
    ]
    
    try:
        print(f"Executing: {' '.join(cmd)}")
        subprocess.run(cmd, check=True)
    except subprocess.CalledProcessError as e:
        print(f"Error: {e}")
    except FileNotFoundError:
        print("Error: world not found. Please install it first.")

if __name__ == "__main__":
    run_command()

When To Use

In post-processing validation where line suffixes must meet specific criteria.

Pro Tip

Consider the impact of multiline flag on behavior; confirm line breaks are properly interpreted in your environment.

Command Builder

Tune the command before you copy it

Back to syntax

Generated Command

<world>$

Anatomy of Output

Understanding the result

Matched: world Match Result

Confirms that the string ends correctly.

No match found. Validation Result

Indicates a failure to match against the provided string.

(input): hello world Input Examination

Shows the original input line for context.

Troubleshooting

Common pitfalls

RegexError: invalid group name

Solution: Revise your regex pattern for proper named group usage.

Cannot match empty string.

Solution: Ensure the input string provides context for matching.

RegexError: unexpected character after `$`

Solution: Validate correct syntax for asserting the end of a line.

Command Breakdown

What each part is doing

<world>$: Base Command; The executable that performs this operation. Here it runs World before the shell applies any redirect operators.
<world>: world; The value supplied for world.

Alternative Approaches

Comparable commands in other tools

Alternative programming tools for the same job.

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