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string grep

[grep] Run and understand. Get the line number of the relevant string using the grep command

created-2025/11/13 updated-2026/03/15

Introduction

This repository executes the grep command to obtain the line number corresponding to the string written in the target file.

Commands that need to be installed

  1. git

Quickstart

If you have already installed the above command, run the following command to download it from the repository, then change the directory and run the grep command to get the line number.

ubuntu

git clone https://github.com/trygfmi/grep_getRowNumber
cd grep_getRowNumber
cat search_file.txt
grep -n K5m\!P7oR search_file.txt | cut -d: -f1
Output results
3

macos

MacPorts

source ~/bashrc_folder/macports_alias
git clone https://github.com/trygfmi/grep_getRowNumber
cd grep_getRowNumber
cat search_file.txt
grep -n K5m\!P7oR search_file.txt | cut -d: -f1
Output results
3

windows

WSL2

git clone https://github.com/trygfmi/grep_getRowNumber
cd grep_getRowNumber
cat search_file.txt
grep -n K5m\!P7oR search_file.txt | cut -d: -f1
Output results
3

MSYS2 MINGW64

git clone https://github.com/trygfmi/grep_getRowNumber
cd grep_getRowNumber
cat search_file.txt
grep -n K5m\!P7oR search_file.txt | cut -d: -f1
Output results
3

Procedure

ubuntu

Click to open details

Advance confirmation

Enter the following command into the terminal and if command not found does not appear, it is OK.

git --version

preinstall

If the command not found appears in the terminal, please install it using the following command.

sudo apt install git

command

Executing the following command should output the line numbers in the details

git clone https://github.com/trygfmi/grep_getRowNumber
cd grep_getRowNumber
cat search_file.txt
grep -n K5m\!P7oR search_file.txt | cut -d: -f1
detail
3

macos

Click to open details

Advance confirmation

Enter the following command into the terminal and if command not found does not appear, it is OK.

source ~/bashrc_folder/macports_alias
git --version

※MacOS uses the MacPorts package manager to manage commands. If you haven’t installed it yet, please see the MacPorts installation instructions at the link below.

It also allows you to set aliases for commands so that you can call them without conflicting with existing environments.

If you are using this blog for the first time, please refer to the following two articles to set up your environment.

preinstall

If the command not found appears in the terminal, install it using the following command and set an alias.

sudo port install git
echo 'alias git="/opt/local/bin/git"' >> ~/bashrc_folder/macports_alias

COMMAND

Executing the following command should output the line numbers in the details

source ~/bashrc_folder/macports_alias
git clone https://github.com/trygfmi/grep_getRowNumber
cd grep_getRowNumber
cat search_file.txt
grep -n K5m\!P7oR search_file.txt | cut -d: -f1
detail
3

windows

Click to open details

Advance confirmation

Enter the following command into the prompt and if command not found does not appear, it’s OK.

WSL2
git --version
MSYS2 MINGW64
git --version

※Windows has been confirmed to work with WSL2 and MSYS2 MINGW64. Please install WSL2 if possible, and if you are unable to set it up, you can run it by installing MSYS2, but there may be some commands that can only be run in WSL2. Please refer to the following article for instructions on how to install WSL2 and MSYS2.

preinstall

If the command not found appears in the prompt, please install it using the following command.

WSL2
sudo apt install git
MSYS2 MINGW64
pacman --sync git

command

Executing the following command should output the line numbers in the details

WSL2
git clone https://github.com/trygfmi/grep_getRowNumber
cd grep_getRowNumber
cat search_file.txt
grep -n K5m\!P7oR search_file.txt | cut -d: -f1
detail
3
MSYS2 MINGW64
git clone https://github.com/trygfmi/grep_getRowNumber
cd grep_getRowNumber
cat search_file.txt
grep -n K5m\!P7oR search_file.txt | cut -d: -f1
detail
3

Afterword

When using symbols as search strings, you may need to escape them with a \ (backslash). The -d option of the cut command is a delimiter, and it splits the string received with | (pipe) at the character immediately following it. You should be able to obtain the search string with -f2.

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