/tools/filters/tailWrapper.xml

 1<tool id="Show tail1" name="Select last">
 2  <description>lines from a dataset</description>
 3  <command interpreter="perl">tailWrapper.pl $input $lineNum $out_file1</command>
 4  <inputs>
 5    <param name="lineNum" size="5" type="integer" value="10" label="Select last" help="lines"/>
 6    <param format="txt" name="input" type="data" label="from"/>
 7  </inputs>
 8  <outputs>
 9    <data format="input" name="out_file1" metadata_source="input"/>
10  </outputs>
11  <tests>
12    <test>
13      <param name="lineNum" value="10"/>
14      <param name="input" value="1.bed"/>
15      <output name="out_file1" file="eq-showtail.dat"/>
16    </test>
17  </tests>
18  <help>
19
20**What it does**
21
22This tool outputs specified number of lines from the **end** of a dataset
23
24-----
25
26**Example**
27
28- Input File::
29
30    chr7    57134   57154   D17003_CTCF_R7  356     -
31    chr7    57247   57267   D17003_CTCF_R4  207     +
32    chr7    57314   57334   D17003_CTCF_R5  269     +
33    chr7    57341   57361   D17003_CTCF_R7  375     +
34    chr7    57457   57477   D17003_CTCF_R3  188     +
35
36- Show last two lines of above file. The result is::
37
38    chr7    57341   57361   D17003_CTCF_R7  375     +
39    chr7    57457   57477   D17003_CTCF_R3  188     +
40
41  </help>
42</tool>