Linux od Guide

Complete beginner-friendly guide to od on Linux, covering Arch Linux, CachyOS, and other distributions including octal dump, file inspection, and binary data analysis.

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Table of Contents

1. od Basics
2. Octal Dump
3. Different Formats
4. File Inspection
5. Troubleshooting

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od Basics

Octal Dump

Basic usage:

# Octal dump
od file.txt

# Shows file in octal format

Hexadecimal

Hex format:

# Hexadecimal format
od -x file.txt

# -x = hexadecimal (shows in hex)

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Octal Dump

Default Format

Octal output:

# Default octal format
od file.txt

# Shows:
# - Offset (octal)
# - Octal bytes
# - ASCII representation

Address Format

Address display:

# Address in decimal
od -A d file.txt

# -A = address (d = decimal)

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Different Formats

Hexadecimal

Hex dump:

# Hexadecimal dump
od -x file.txt

# Shows in hexadecimal

Decimal

Decimal format:

# Decimal format
od -d file.txt

# -d = decimal (shows in decimal)

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File Inspection

ASCII View

ASCII representation:

# ASCII view
od -c file.txt

# -c = characters (shows ASCII)

String View

String format:

# String format
od -S file.txt

# -S = strings (shows strings)

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Troubleshooting

od Not Found

Check installation:

# od is part of coreutils
# Usually pre-installed

# Check od
which od

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Summary

This guide covered od usage, octal dump, and binary data analysis for Arch Linux, CachyOS, and other distributions.

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Next Steps

• hexdump Guide - Hex dump alternative
• file Guide - File type detection
• stat Guide - File statistics
• od Documentation: man od

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This guide covers Arch Linux, CachyOS, and other Linux distributions. For distribution-specific details, refer to your distribution's documentation.