Articles about grep | UserComp.com

How to Extract Duplicate Lines from Two Files using Grep

Learn how to compare two files and extract duplicate lines using the powerful Grep command in Linux. This tutorial provides a step-by-step guide on how to use Grep to keep duplicate lines seen in File 2 based on the string found in File 1. The output can be sorted and saved to a third file for easy reference.

Efficiently Parsing /proc/pid/maps with ECMAScript Regex in a Grep Tool

This article introduces a newly developed grep tool that utilizes ECMAScript regex syntax to parse /proc/pid/maps twice and determine the largest mapping. Learn how this tool can improve your Linux tech support capabilities.

How to Find File Names with Grep Command

In this article, we will discuss how to use the grep command to find file names in a Linux system. We will cover different options that you can use to customize your search and make it more efficient. If you want to improve your file management skills, this guide is for you.

Fixing Incomplete Grep: A Common Typing Mistake

Do you constantly make the mistake of typing incomplete grep commands? Learn how to fix this common typing mistake and improve your command line productivity.

Bash Script Fails to Find Update Specific Line: grep, sed Solutions

In this tech support article, we address a common issue encountered when writing a simple script to add Wayland support options to specific application files. The script utilizes grep to check a line and sed to add missing options. However, the script fails to find the update specific line. We provide solutions using grep and sed to overcome this challenge.

Troubleshooting 'grep: /var/log/syslog: binary file matches' warning

Learn how to handle the 'binary file matches' warning when using grep on a log file such as /var/log/syslog. This article provides a solution for the issue and tips for further troubleshooting.

Grep Search Text Patterns in ISO-8859-1 Encoded File: Accented Characters Stripped

Learn how to use Grep to search for text patterns in an ISO-8859-1 encoded file, handling accented characters efficiently. Improve your tech support skills with this practical guide.

RHEL 8.6: Troubleshooting pgrep Hangs

In this tech support article, we will discuss how to troubleshoot pgrep hanging issues in RHEL 8.6. Learn about common causes and solutions for pgrep not responding in a timely manner and how to optimize its performance. Read more to find out more about this Linux command and how to resolve related issues.

Using Negative Lookbehind with grep-regex in Ubuntu

In this article, we will explain how to use negative lookbehind with grep-regex in Ubuntu. Negative lookbehind is a powerful regular expression feature that allows us to match a pattern only if it is not preceded by a certain substring. We will provide an example and show you how to implement it in Ubuntu.

Grep Command Not Working with iwconfig: Troubleshooting Steps

If you're encountering issues with the grep command not working with iwconfig, follow these troubleshooting steps to resolve the problem.

Using GREP/Regex in Adobe InDesign: A Practical Guide

Learn how to use GREP (Global Regular Expression) and Regex (Regular Expression) in Adobe InDesign to find and replace text efficiently. This article provides a practical guide with examples using various search patterns.

Regexp Multiple Lines Grep: Finding Matches Across Newlines

Learn how to use regular expressions (regexp) with the grep command to search for patterns across multiple lines in a file. This article provides examples for Linux, Windows, and MacOS.

Understanding Syntax: Does 'grep-v' Command Show Uncommented Lines or Hide Empty Ones?

This article explains the behavior of the 'grep-v' command in showing uncommented lines versus hiding empty lines. Through a test file, we demonstrate the difference and clarify any potential confusion.

BBEdit 15 Not Finding Grep Patterns.xml

Users report that BBEdit 15 is unable to find the GrepPatterns.xml file, which was previously located in Application Support > BBEdit > Setup > GrepPatterns.xml. This issue may cause problems when using custom grep patterns in BBEdit.

Using grep Pipe Symbol in Command Line: A Comprehensive Guide

Learn how to use the grep pipe symbol effectively in command line searches. Understand the basics and explore examples using vertical bars and grep-a-b results.

Understanding No-Ignore Case Grep Command in Manpages

In this tech support article, we will explain the concept of no-ignore case matching in manpages and how it affects the grep command's behavior.

How to Search and Replace Byte 92 and 96 in .htm Files in Linux

Learn how to search and replace specific bytes (92 and 96) in .htm files on Linux using command-line tools like grep. This article provides step-by-step instructions and examples for performing this task efficiently.

How to Search and Replace Byte 92 and 96 in HTML Files on Linux

Learn how to perform a search and replace operation for byte 92 and 96 in HTML files on Linux using the command-line tool grep. This article provides step-by-step instructions and tips for efficient file manipulation.

Cygwin64's pgrep not working: Troubleshooting Guide

Having trouble with Cygwin64's pgrep command? This troubleshooting guide will help you resolve the issue and get your system back on track. Learn how to fix common problems and optimize your Cygwin64 setup for seamless performance.

Why can I ssh and return a result faster than Linux can with a bundled command?

Learn why SSH commands can return results faster than bundled Linux commands. Explore the benefits of using SSH for quicker and more efficient command execution.

How to Use Diff for File Names, Not File Content, and Echo "differences!"

Learn how to utilize the diff command in Linux to compare file names without analyzing their content. This article provides step-by-step instructions and examples on using diff for file names and echoing differences. Enhance your command-line skills and efficiently identify discrepancies between directories or files.

Combining Search for Multiple Strings and Print Rows After a Hit in a String/Search

Learn how to combine the functionality of searching for multiple strings (patterns) and printing rows after a hit in a string/search on Windows 10. This article provides step-by-step instructions and examples using command-line tools like regex, grep, and egrep.

Combining Search for Multiple Strings and Printing Rows After a Hit in Grep

Learn how to combine the search for multiple strings (patterns) with printing rows after a hit in Grep. This article provides step-by-step instructions for performing this task on a Windows 10 command line using regex and egrep. Master the art of efficiently searching and outputting a common file with Grep.