TestOut Linux Pro Practice Test 2025 - Free Linux Pro Practice Questions and Study Guide

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What does the option '-h' in the 'df -h' command represent?

Human readable output

The option '-h' in the 'df -h' command stands for "human-readable output." This means that when the command is executed, it will display the sizes of disk usage in a format that is easier for humans to read and interpret. Instead of showing values only in bytes, it converts them into more familiar units such as kilobytes (K), megabytes (M), or gigabytes (G), depending on the size being reported. This makes it far simpler for users to quickly ascertain the available and used space on their filesystems without needing to manually calculate the conversions from bytes. The 'df' command itself reports the file system disk space usage, and using the '-h' option enhances the output by making it more accessible to those who may not be comfortable working solely with raw byte values.

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