Intro

Linux relies heavily on text files for data storage, so it makes sense that there are many tools for manipulating text. Some of these tools are:

• cat -- Concatenate files and print on the standard output
• sort -- Sort lines of text files
• uniq -- Report or omit repeated lines
• cut -- Extract sections from each line of files
• paste -- Merge lines of files
• join -- Join lines of two files on a common field
• comm -- Compare two sorted files line by line
• diff -- Compare files line by line
• patch -- Apply a diff file to an original
• tr -- Translate or delete characters
• sed -- Stream editor for filtering and transforming text
• aspell -- Interactive spell checker

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