comparison tail.xml @ 1:a4ad586d1403 draft

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0:ec66f9d90ef0

    <description>lines from a dataset (tail)</description>
    <requirements>
        <requirement type="package" version="8.21">gnu_coreutils</requirement>
    </requirements>
    <command>
        tail --lines $count '$input1' &gt; '$output'
    </command>

    <inputs>
        <param format="txt" name="input1" type="data" label="file to cut" />
        <param name="count" type="integer" size="5"  value="10" label="Output last X lines" help="" />
    </inputs>

    <outputs>
        <data format="input" name="output" metadata_source="input1"/>
    </outputs>
    <help>

**What it does**

This tool runs the **tail** unix command, which discards lines from the beginning of a file.

    </help>
</tool>

1:a4ad586d1403

    <description>lines from a dataset (tail)</description>
    <requirements>
        <requirement type="package" version="8.21">gnu_coreutils</requirement>
    </requirements>
    <command>
        tail --lines $count '$input' &gt; '$output'
    </command>

    <inputs>
        <param format="txt" name="input" type="data" label="file to cut" />
        <param name="count" type="integer" size="5"  value="10" label="Output last X lines" help="" />
    </inputs>

    <outputs>
        <data format="input" name="output" metadata_source="input"/>
    </outputs>
    <tests>
        <test>
            <param name="count" value="10"/>
            <param name="infile" value="1.bed"/>
        <output name="out_file1" file="eq-showtail.dat"/>
        </test>
    </tests>
    <help>

**What it does**

This tool outputs specified number of lines from the **end** of a dataset

-----

**Example**

- Input File::

    chr7    57134   57154   D17003_CTCF_R7  356     -
    chr7    57247   57267   D17003_CTCF_R4  207     +
    chr7    57314   57334   D17003_CTCF_R5  269     +
    chr7    57341   57361   D17003_CTCF_R7  375     +
    chr7    57457   57477   D17003_CTCF_R3  188     +

- Show last two lines of above file. The result is::

    chr7    57341   57361   D17003_CTCF_R7  375     +
    chr7    57457   57477   D17003_CTCF_R3  188     +

    </help>
</tool>