You Asked: How Do I Merge Two Unix Files Side by Side?
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How do you join two files line by line in Unix?

To merge files line by line, you can use the paste command. By default, the corresponding lines of each file are separated with tabs. This command is the horizontal equivalent to the cat command, which prints the content of the two files vertically.

How do I merge two columns in Unix?

Explanation: Walk through file2 ( NR==FNR is only true for the first file argument). Save column 3 in hash-array using column 2 as key: h[$2] = $3 . Then walk through file1 and output all three columns $1,$2,$3 , appending the corresponding saved column from hash-array h[$2] .

Elena Rostova

Elena Rostova

Lead Health, Wellness & Medical Journalist

Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.

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