uniq Linux Commands – Overview with Examples and FAQs

Introduction

The Linux command uniq is a powerful tool used to filter out duplicate lines from a text file. It can be used to quickly identify and remove duplicate lines from a file, or to compare two files and identify the differences between them. It is a useful tool for data analysis and manipulation, as it can be used to quickly identify and remove duplicate lines from a file. Additionally, uniq can be used to compare two files and identify the differences between them.

Examples

The uniq Linux command is used to remove duplicate lines from a text file. It can also be used to count the number of occurrences of each line in a file.

Syntax: uniq [OPTION]… [INPUT [OUTPUT]]

Example:

$ cat test.txt

Hello
Hello
World

$ uniq test.txt

Hello
World
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The Unique Linux Command

The Linux operating system is a powerful and versatile platform that offers a variety of commands to accomplish various tasks. One of the most unique commands available in Linux is the uniq command. This command is used to filter out duplicate lines from a file or standard input.

The uniq command is used to compare adjacent lines in a file and remove any duplicate lines. It can also be used to compare two files and output the lines that are unique to each file. The uniq command is often used in combination with other commands such as sort, grep, and awk to filter out duplicate lines from a file.

The syntax for the uniq command is as follows:

uniq [OPTION]... [INPUT [OUTPUT]]

The most commonly used options for the uniq command are -c, -d, and -u. The -c option is used to count the number of times each line appears in the input. The -d option is used to display only the duplicate lines in the input. The -u option is used to display only the unique lines in the input.

The uniq command is a powerful tool for filtering out duplicate lines from a file or standard input. It can be used in combination with other commands to quickly and easily filter out duplicate lines from a file.

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