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string dirname

[dirname] Run and understand Remove the last segment from the path and display

created-2025/12/12 updated-2026/03/15

Introduction

This repository is displayed by running the dirname command and removing the last segment of the path output by the which command.

The commands you need to install

  1. None in paticular

Quickstart

Run the dirname command and check the path output by the which command and the path output by dirname.

ubuntu

which echo
which echo | xargs dirname
Output results
/usr/bin/echo
/usr/bin

macos

MacPorts

which echo
which echo | xargs dirname
Output results
/bin/echo
/bin

windows

WSL2

which echo
which echo | xargs dirname
Output results
/usr/bin/echo
/usr/bin

MSYS2 MINGW64

which echo
which echo | xargs dirname
Output results
/usr/bin/echo
/usr/bin

Procedure

ubuntu

Click to open details

Advance confirmation

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

Nothing in paticular

preinstall

Please install the command that shows “command not found” in the terminal using the following command.

Nothing in paticular

command

Executing the following command in the terminal should output a string similar to the following:

which echo
which echo | xargs dirname
Detail
/usr/bin/echo
/usr/bin

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.

Nothing in paticular

*MacOS uses the MacPorts package manager to manage commands. If you haven’t installed it yet, please refer to the MacPorts installation instructions at the link below. Also, set an alias for the command so that you can call the command without conflicting with the existing environment. 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.

Nothing in paticular

command

Executing the following command in the terminal should output a string similar to the following:

which echo
which echo | xargs dirname
Detail
/bin/echo
/bin

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
Nothing in paticular
MSYS2 MINGW64
Nothing in paticular

*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
Nothing in paticular
MSYS2 MINGW64
Nothing in paticular

command

By executing the following command at the prompt, you should get the following output:

WSL2
which echo
which echo | xargs dirname
Detail
/bin/echo
/bin
MSYS2 MINGW64
which echo
which echo | xargs dirname
Detail
/bin/echo
/bin

Afterword

You can also specify a relative file path as in the following code:

file_path="./folder/test.txt"
dirname "$file_path"

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