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string echo

[echo] Run and understand Correctly output spaces in quote

created-2025/12/07 updated-2026/03/15

Introduction

This repository runs the echo command to check the output of a string containing two spaces, with or without quotes.

The commands you need to install

  1. None in paticular

Quickstart

Try running the echo command to see if the code is quoted and if it’s not.

ubuntu

hello="hello  world.txt"


echo "$hello"


echo $hello
Output results 
hello  world.txt
hello world.txt

macos

MacPorts

hello="hello  world.txt"


echo "$hello"


echo $hello
Output results 
hello  world.txt
hello world.txt

windows

WSL2

hello="hello  world.txt"


echo "$hello"


echo $hello
Output results 
hello  world.txt
hello world.txt

MSYS2 MINGW64

hello="hello  world.txt"


echo "$hello"


echo $hello
Output results 
hello  world.txt
hello world.txt

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.

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:

hello="hello  world.txt"


echo "$hello"


echo $hello
Detail 
hello  world.txt
hello world.txt

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.

[macos] Steps to install MacPorts
[macos] Setting aliases for commands installed with MacPorts

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:

hello="hello  world.txt"


echo "$hello"


echo $hello
Detail 
hello  world.txt
hello world.txt

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.

[windows] Steps to install WSL2 (Windows Subsystem for Linux)
[Windows] Steps to install 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
hello="hello  world.txt"


echo "$hello"


echo $hello
Detail 
hello  world.txt
hello world.txt
MSYS2 MINGW64
hello="hello  world.txt"


echo "$hello"


echo $hello
Detail 
hello  world.txt
hello world.txt

Afterword

If you add ” (double quotation marks), the string will be output as is, but if you do not add them, the string will be output with one space.

echo '$hello'

As shown above, ‘ (single quotation marks) are not expanded, so $hello is output. In the code below, the string in the variable is used as the file name. If the file name or path contains spaces, the spaces must be output accurately, so we recommend that you use ” (double quotation marks) on a regular basis.

cat "$hello"

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