What is uniq command in Linux?

The uniq command in Linux is used to filter out repeated lines in a sorted file or from the standard input. It reads the input line by line and only outputs unique lines, which can be very useful for cleaning up data.

To use the uniq command effectively, the input must be sorted. This means that you may want to use the sort command in conjunction with uniq to ensure that duplicates are adjacent to one another.


uniq command Linux filter repeated lines unique lines sort command

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