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string awk

[awk] Run and understand. Split a string with awk command and display the whole string

created-2025/11/13 updated-2026/03/21

Introduction

This repository runs the awk command to split and display all whitespace-delimited strings.

Commands that need to be installed

None in paticular

Quickstart

Try running the awk command to output the string

ubuntu

echo "hello awk command world" | awk '{for (i=0;i<=NF;i++) printf "%s\n", $i}'
Output results
hello awk command world
hello
awk
command
world

macos

MacPorts

echo "hello awk command world" | awk '{for (i=0;i<=NF;i++) printf "%s\n", $i}'
Output results
hello awk command world
hello
awk
command
world

windows

WSL2

echo "hello awk command world" | awk '{for (i=0;i<=NF;i++) printf "%s\n", $i}'
Output results
hello awk command world
hello
awk
command
world

MSYS2 MINGW64

echo "hello awk command world" | awk '{for (i=0;i<=NF;i++) printf "%s\n", $i}'
Output results
hello awk command world
hello
awk
command
world

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

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

Nothing in paticular

command

Executing the following command should output a string similar to the following

echo "hello awk command world" | awk '{for (i=0;i<=NF;i++) printf "%s\n", $i}'
detail
hello awk command world
hello
awk
command
world

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 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.

Nothing in paticular

COMMAND

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

echo "hello awk command world" | awk '{for (i=0;i<=NF;i++) printf "%s\n", $i}'
detail
hello awk command world
hello
awk
command
world

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
Notning in paticular
MSYS2 MINGW64
Notning 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
Notning in paticular
MSYS2 MINGW64
Notning in paticular

command

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

WSL2
echo "hello awk command world" | awk '{for (i=0;i<=NF;i++) printf "%s\n", $i}'
detail
hello awk command world
hello
awk
command
world
MSYS2 MINGW64
echo "hello awk command world" | awk '{for (i=0;i<=NF;i++) printf "%s\n", $i}'
detail
hello awk command world
hello
awk
command
world

Afterword

The number of characters in the string after splitting is stored in NF. Each character string is accessed by assigning a value to i in $i.

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