---
name: "rust-uniq"
section: "1"
platform: "linux"
package: "rust-coreutils"
version: "0.0.30-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/rust-uniq"
---

# rust-uniq(1)

Report or omit repeated lines.

## NAME

uniq - Report or omit repeated lines.

## SYNOPSIS

**uniq** \[**-D**\|**--all-repeated**\] \[**--group**\] \[**-w**\|**--check-chars**\] \[**-c**\|**--count**\] \[**-i**\|**--ignore-case**\] \[**-d**\|**--repeated**\] \[**-s**\|**--skip-chars**\] \[**-f**\|**--skip-fields**\] \[**-u**\|**--unique**\] \[**-z**\|**--zero-terminated**\] \[**-h**\|**--help**\] \[**-V**\|**--version**\] \[*files*\]

## DESCRIPTION

Report or omit repeated lines.

## OPTIONS

- **-D**, **--all-repeated**=*delimit-method*

  print all duplicate lines. Delimiting is done with blank lines. \[default: none\]\

  \[*possible values:* none, prepend, separate\]

- **--group**=*group-method*

  show all items, separating groups with an empty line. \[default: separate\]\

  \[*possible values:* separate, prepend, append, both\]

- **-w**, **--check-chars**=*N*

  compare no more than N characters in lines

- **-c**, **--count**

  prefix lines by the number of occurrences

- **-i**, **--ignore-case**

  ignore differences in case when comparing

- **-d**, **--repeated**

  only print duplicate lines

- **-s**, **--skip-chars**=*N*

  avoid comparing the first N characters

- **-f**, **--skip-fields**=*N*

  avoid comparing the first N fields

- **-u**, **--unique**

  only print unique lines

- **-z**, **--zero-terminated**

  end lines with 0 byte, not newline

- **-h**, **--help**

  Print help

- **-V**, **--version**

  Print version

## EXTRA

Filter adjacent matching lines from INPUT (or standard input), writing to OUTPUT (or standard output).

Note: uniq does not detect repeated lines unless they are adjacent. You may want to sort the input first, or use sort -u without uniq.

## VERSION

v0.0.30