root/galaxy-central/tools/unix_tools/uniq_tool.xml

<tool id="cshl_uniq_tool" name="uniq">
  <command>
        uniq -f $skipfields $count $repeated $ignorecase $uniqueonly $input $output
  </command>

  <inputs>
        <param format="txt" name="input" type="data" label="file to scan for unique values" />
                
        <param name="count" type="boolean" label="count [-c]" help="prefix lines by the number of occurrences" truevalue="-c" falsevalue="" />

        <param name="repeated" type="boolean" label="repeated [-d]" help="only print duplicate lines" truevalue="-d" falsevalue="" />

        <param name="ignorecase" type="boolean" label="ignore case [-i]" help="ignore differences in case when comparing" truevalue="-i" falsevalue="" />

        <param name="uniqueonly" type="boolean" label="unique only [-u]" help="only print unique lines" truevalue="-u" falsevalue="" />

        <param name="skipfields" type="integer" label="skip fields [-f]" help="avoind comparing the first N fields. (use zero to start from the first field)" size="2" value="0" />
  </inputs>

  <outputs>
    <data format="input" name="output" metadata_source="input"/>
  </outputs>
  <help>
  </help>
</tool>