/tools/filters/headWrapper.xml

 1<tool id="Show beginning1" name="Select first">
 2  <description>lines from a dataset</description>
 3  <command interpreter="perl">headWrapper.pl $input $lineNum $out_file1</command>
 4  <inputs>
 5    <param name="lineNum" size="5" type="integer" value="10" label="Select first" 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-showbeginning.dat"/>
16    </test>
17  </tests>
18  <help>
19
20**What it does**
21
22This tool outputs specified number of lines from the **beginning** of a dataset
23
24-----
25
26**Example**
27
28Selecting 2 lines from this::
29
30    chr7  56632  56652  D17003_CTCF_R6  310  +
31    chr7  56736  56756  D17003_CTCF_R7  354  +
32    chr7  56761  56781  D17003_CTCF_R4  220  +
33    chr7  56772  56792  D17003_CTCF_R7  372  +
34    chr7  56775  56795  D17003_CTCF_R4  207  +
35
36will produce::
37
38    chr7  56632  56652  D17003_CTCF_R6  310  +
39    chr7  56736  56756  D17003_CTCF_R7  354  +
40
41  </help>
42</tool>