<tool id="cat_multiple" name="Concatenate multiple datasets" version="0.2">
    <description>tail-to-head</description>
    <command><![CDATA[
        cat
        #for $file in $input
            "$file"
        #end for
        > "$out_file1"
        ]]>
    </command>
    <inputs>
        <param name="input" type="data" label="Concatenate Dataset" multiple="True"/>
    </inputs>
    <outputs>
        <data name="out_file1" format_source="input" metadata_source="input"/>
    </outputs>
    <tests>
        <test>
            <param name="input" value="1.bed,2.bed"/>
            <output name="out_file1" file="cat_wrapper_out1.bed"/>
        </test>
    </tests>
    <help>

        .. class:: warningmark

        **WARNING:** Be careful not to concatenate datasets of different kinds (e.g., sequences with intervals). This
        tool does not check if the datasets being concatenated are in the same format.

        -----

        **What it does**

        Concatenates datasets

        -----

        **Example**

        Concatenating Dataset::

        chrX 151087187 151087355 A 0 -
        chrX 151572400 151572481 B 0 +

        with Dataset1::

        chr1 151242630 151242955 X 0 +
        chr1 151271715 151271999 Y 0 +
        chr1 151278832 151279227 Z 0 -

        and with Dataset2::

        chr2 100000030 200000955 P 0 +
        chr2 100000015 200000999 Q 0 +

        will result in the following::

        chrX 151087187 151087355 A 0 -
        chrX 151572400 151572481 B 0 +
        chr1 151242630 151242955 X 0 +
        chr1 151271715 151271999 Y 0 +
        chr1 151278832 151279227 Z 0 -
        chr2 100000030 200000955 P 0 +
        chr2 100000015 200000999 Q 0 +

        -----

        Adapted from the concatenate tool that comes with galaxy.
    </help>
</tool>