Linux Standard Base Specification 1.3
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uniq

Name

uniq -- remove duplicate lines from a sorted file

Description

uniq is as specified in the Single UNIX Specification but with differences as listed below.

LSB Deprecated Differences

The behaviors specified in this section are expected to disappear from a future version of the LSB; applications should only use the non-LSB-deprecated behaviors.

--count

is equivalent to -c.

--repeated

is equivalent to -d.

-D, --all-repeated

prints all duplicate lines.

--skip-fields=N

is equivalent to -f fields.

-i, --ignore-case

ignores differences in case when comparing.

--skip-chars=N

is equivalent to -s.

--unique

is equivalent to -u.

-w, --check-chars=N

compares no more than N characters in lines.

--version

outputs version information and exits.

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