root/galaxy-central/tools/fasta_tools/fasta_filter_by_length.xml @ 2

<tool id="fasta_filter_by_length" name="Filter sequences by length" version="1.1">
        <description></description>
        <command interpreter="python">fasta_filter_by_length.py $input $min_length $max_length $output </command>
        <inputs>
                <param name="input" type="data" format="fasta" label="Fasta file"/>
                <param name="min_length" type="integer" size="15" value="0" label="Minimal length" />
                <param name="max_length" type="integer" size="15" value="0" label="Maximum length" help="Setting to '0' will return all sequences longer than the 'Minimal length'"/> 
        </inputs>
        <outputs>
                <data name="output" format="fasta"/>
        </outputs>
        <tests>
                <test>
                        <param name="input" value="454.fasta" />
                        <param name="min_length" value="10" />
                        <param name="max_length" value="0" />
                        <output name="output" file="fasta_tool_filter_length_1.out" />
                </test>
        </tests>
        <help>

.. class:: infomark

**TIP**. To return sequences longer than a certain length, set *Minimal length* to desired value and leave *Maximum length* set to '0'.

-----

**What it does**
        
Outputs sequences between *Minimal length* and *Maximum length*.
 
-----

**Example**

Suppose you have the following FASTA formatted sequences::

        &gt;seq1
        TCATTTAATGAC
        &gt;seq2
        ATGGC
        &gt;seq3
        TCACATGATGCCG
        &gt;seq4
        ATGGAAGC

Setting the **Minimal length** to **10**, and the **Maximum length** to **0** will return all sequences longer than 10 bp::

        &gt;seq1
        TCATTTAATGAC
        &gt;seq3
        TCACATGATGCCG


        </help>
</tool>