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1 <tool id="headtail" name="head-or-tail">
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2 <description>of a file</description>
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3 <command>$headortail -n $nline $input > $out_file1 </command>
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4 <inputs>
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5 <param name="input" format="txt" type="data" label="Original file"/>
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6 <param name="nline" size="10" type="integer" value="10" label="Number of lines to output"/>
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7 <param name="headortail" type="select" label="Head or Tail">
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8 <option value="head" selected="true">head</option>
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9 <option value="tail">tail</option>
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10 </param>
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11 </inputs>
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12 <outputs>
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13 <data format="input" name="out_file1" />
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14 </outputs>
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15 <tests>
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16 <test>
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17 <output name="out_file1" file="testmap.head"/>
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18 <param name="input" value="test.map" ftype="TXT"/>
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19 <param name="n" value="10"/>
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20 <param name="headortail" value="head" />
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21 </test>
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22 </tests>
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23 <help>
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24
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25 **What it does**
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26
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27 This is a wrapper of the unix head/tail command, which is used to show lines at the beginning or at the end of a file.
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28
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29 </help>
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30 </tool>
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