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3
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1 <tool id="tp_head_tool" name="Select first" version="0.1.1">
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0
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2 <description>lines from a dataset (head)</description>
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3 <requirements>
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4 <requirement type="package" version="8.21">gnu_coreutils</requirement>
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5 </requirements>
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6 <command>
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7 head --lines $complement$count '${infile}' > '${outfile}'
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8 </command>
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9
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10 <inputs>
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1
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11 <param format="txt" name="infile" type="data" label="File to select" />
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12
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13 <param name="complement" type="select" label="Operation">
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14 <option value="">Keep first lines</option>
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15 <option value="-">Remove last lines</option>
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16 </param>
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17
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18 <param name="count" type="integer" size="5" value="10" label="Number of lines" help="These will be kept/discarded (depending on 'operation').">
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19 <sanitizer>
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20 <valid initial="string.printable">
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21 <remove value="'"/>
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22 </valid>
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23 </sanitizer>
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24 </param>
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25 </inputs>
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26
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27 <outputs>
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28 <data format="input" name="outfile" metadata_source="infile"/>
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29 </outputs>
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1
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30 <tests>
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31 <test>
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32 <param name="count" value="10"/>
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33 <param name="infile" value="1.bed"/>
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34 <output name="out_file1" file="eq-showbeginning.dat"/>
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35 </test>
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36 </tests>
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37 <help>
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38
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39 **What it does**
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40
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1
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41 This tool outputs specified number of lines from the **beginning** of a dataset
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42
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43 -----
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44
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45 **Example**
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46
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47 Selecting 2 lines from this::
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48
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49 chr7 56632 56652 D17003_CTCF_R6 310 +
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50 chr7 56736 56756 D17003_CTCF_R7 354 +
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51 chr7 56761 56781 D17003_CTCF_R4 220 +
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52 chr7 56772 56792 D17003_CTCF_R7 372 +
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53 chr7 56775 56795 D17003_CTCF_R4 207 +
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54
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55 will produce::
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56
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57 chr7 56632 56652 D17003_CTCF_R6 310 +
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58 chr7 56736 56756 D17003_CTCF_R7 354 +
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59
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0
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60
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61 </help>
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62 </tool>
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