Mercurial > repos > bgruening > text_processing
annotate awk.xml @ 12:062ed2bb4f2e draft
planemo upload for repository https://github.com/bgruening/galaxytools/tree/master/tools/text_processing/text_processing commit f8896018f5b980a456c4ceaffe0ed457dc80b5a8
| author | bgruening |
|---|---|
| date | Thu, 02 Jun 2016 08:58:39 -0400 |
| parents | d64eace4f9f3 |
| children | 3c685c4106b3 |
| rev | line source |
|---|---|
| 4 | 1 <tool id="tp_awk_tool" name="Text reformatting" version="@BASE_VERSION@.0"> |
| 2 | 2 <description>with awk</description> |
| 4 | 3 <macros> |
| 4 <import>macros.xml</import> | |
| 5 </macros> | |
| 6 <expand macro="requirements"> | |
|
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062ed2bb4f2e
planemo upload for repository https://github.com/bgruening/galaxytools/tree/master/tools/text_processing/text_processing commit f8896018f5b980a456c4ceaffe0ed457dc80b5a8
bgruening
parents:
7
diff
changeset
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7 <requirement type="package" version="4.1.3">gawk</requirement> |
| 4 | 8 </expand> |
| 9 <version_command>awk --version | head -n 1</version_command> | |
| 0 | 10 <command> |
| 4 | 11 <![CDATA[ |
| 12 awk | |
| 13 --sandbox | |
| 6 | 14 -v FS=' ' |
| 15 -v OFS=' ' | |
| 4 | 16 --re-interval |
| 6 | 17 -f "$awk_script" |
| 18 "$infile" | |
| 19 > "$outfile" | |
| 4 | 20 ]]> |
| 0 | 21 </command> |
| 22 <inputs> | |
| 6 | 23 <param name="infile" format="txt" type="data" label="File to process" /> |
| 24 <param name="code" type="text" area="true" size="5x35" label="AWK Program" help=""> | |
| 0 | 25 <sanitizer> |
| 26 <valid initial="string.printable"> | |
| 27 <remove value="'"/> | |
| 28 </valid> | |
| 29 </sanitizer> | |
| 30 </param> | |
| 4 | 31 </inputs> |
| 32 <configfiles> | |
| 6 | 33 <configfile name="awk_script">$code</configfile> |
| 4 | 34 </configfiles> |
| 35 <outputs> | |
| 6 | 36 <data name="outfile" format_source="infile" metadata_source="infile"/> |
| 4 | 37 </outputs> |
| 38 <tests> | |
| 6 | 39 <test> |
| 40 <param name="infile" value="awk1.txt" /> | |
| 41 <!-- commas are not allowed in a value field. Values with comma will be splitted --> | |
| 42 <param name="code" value='$2>0.5 { print $2*9"\t"$1 }' /> | |
| 43 <output name="outfile" file="awk_results1.txt" /> | |
| 44 </test> | |
| 4 | 45 </tests> |
| 46 <help> | |
| 47 <![CDATA[ | |
| 0 | 48 **What it does** |
| 49 | |
| 50 This tool runs the unix **awk** command on the selected data file. | |
| 51 | |
| 52 .. class:: infomark | |
| 53 | |
| 7 | 54 **TIP:** |
| 1 | 55 |
| 7 | 56 This tool uses the **extended regular** expression syntax (not the perl syntax). |
| 1 | 57 **\\d**, **\\w**, **\\s** etc. are **not** supported. |
| 0 | 58 |
| 59 | |
| 60 **Further reading** | |
| 61 | |
| 62 - Awk by Example (http://www.ibm.com/developerworks/linux/library/l-awk1.html) | |
| 63 - Long AWK tutorial (http://www.grymoire.com/Unix/Awk.html) | |
| 64 - Learn AWK in 1 hour (http://www.selectorweb.com/awk.html) | |
| 65 - awk cheat-sheet (http://cbi.med.harvard.edu/people/peshkin/sb302/awk_cheatsheets.pdf) | |
| 66 - Collection of useful awk one-liners (http://student.northpark.edu/pemente/awk/awk1line.txt) | |
| 67 | |
| 68 ----- | |
| 69 | |
| 70 **AWK programs** | |
| 71 | |
| 72 Most AWK programs consist of **patterns** (i.e. rules that match lines of text) and **actions** (i.e. commands to execute when a pattern matches a line). | |
| 73 | |
| 74 The basic form of AWK program is:: | |
| 75 | |
| 76 pattern { action 1; action 2; action 3; } | |
| 77 | |
| 78 | |
| 79 **Pattern Examples** | |
| 80 | |
| 81 - **$2 == "chr3"** will match lines whose second column is the string 'chr3' | |
| 82 - **$5-$4>23** will match lines that after subtracting the value of the fourth column from the value of the fifth column, gives value alrger than 23. | |
| 83 - **/AG..AG/** will match lines that contain the regular expression **AG..AG** (meaning the characeters AG followed by any two characeters followed by AG). (This is the way to specify regular expressions on the entire line, similar to GREP.) | |
| 84 - **$7 ~ /A{4}U/** will match lines whose seventh column contains 4 consecutive A's followed by a U. (This is the way to specify regular expressions on a specific field.) | |
| 6 | 85 - **10000 < $4 && $4 < 20000** will match lines whose fourth column value is larger than 10,000 but smaller than 20,000 |
| 0 | 86 - If no pattern is specified, all lines match (meaning the **action** part will be executed on all lines). |
| 87 | |
| 88 | |
| 89 **Action Examples** | |
| 90 | |
| 91 - **{ print }** or **{ print $0 }** will print the entire input line (the line that matched in **pattern**). **$0** is a special marker meaning 'the entire line'. | |
| 92 - **{ print $1, $4, $5 }** will print only the first, fourth and fifth fields of the input line. | |
| 93 - **{ print $4, $5-$4 }** will print the fourth column and the difference between the fifth and fourth column. (If the fourth column was start-position in the input file, and the fifth column was end-position - the output file will contain the start-position, and the length). | |
| 94 - If no action part is specified (not even the curly brackets) - the default action is to print the entire line. | |
| 95 | |
| 96 | |
| 97 **AWK's Regular Expression Syntax** | |
| 98 | |
| 7 | 99 The select tool searches the data for lines containing or not containing a match to the given pattern. A Regular Expression is a pattern descibing a certain amount of text. |
| 0 | 100 |
| 101 - **( ) { } [ ] . * ? + \ ^ $** are all special characters. **\\** can be used to "escape" a special character, allowing that special character to be searched for. | |
| 102 - **^** matches the beginning of a string(but not an internal line). | |
| 103 - **(** .. **)** groups a particular pattern. | |
| 104 - **{** n or n, or n,m **}** specifies an expected number of repetitions of the preceding pattern. | |
| 105 | |
| 106 - **{n}** The preceding item is matched exactly n times. | |
| 7 | 107 - **{n,}** The preceding item ismatched n or more times. |
| 108 - **{n,m}** The preceding item is matched at least n times but not more than m times. | |
| 0 | 109 |
| 110 - **[** ... **]** creates a character class. Within the brackets, single characters can be placed. A dash (-) may be used to indicate a range such as **a-z**. | |
| 111 - **.** Matches any single character except a newline. | |
| 112 - ***** The preceding item will be matched zero or more times. | |
| 113 - **?** The preceding item is optional and matched at most once. | |
| 114 - **+** The preceding item will be matched one or more times. | |
| 115 - **^** has two meaning: | |
| 7 | 116 - matches the beginning of a line or string. |
| 0 | 117 - indicates negation in a character class. For example, [^...] matches every character except the ones inside brackets. |
| 118 - **$** matches the end of a line or string. | |
| 7 | 119 - **\|** Separates alternate possibilities. |
| 0 | 120 |
| 4 | 121 @REFERENCES@ |
| 122 ]]> | |
| 1 | 123 </help> |
| 0 | 124 </tool> |