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如何解析文件并写入单独的列

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如何解析文件并写入单独的列

我正在尝试解析 antismash 的输出来计算 BGC 的数量。我发现人们使用 python 编写的脚本我一无所知，所以我试图使用 bash 脚本来解决这个问题。

具有预测簇的基因库格式文件如下所示：

head -30 sca_11_chr8_3_0.region001.gbk
LOCUS       sca_11_chr8_3_0        45390 bp    DNA     linear   UNK 01-JAN-1980
DEFINITION  sca_11_chr8_3_0.
ACCESSION   sca_11_chr8_3_0
VERSION     sca_11_chr8_3_0
KEYWORDS    .
SOURCE
  ORGANISM
            .
COMMENT     ##antiSMASH-Data-START##
            Version      :: 6.0.1-a859617(changed)
            Run date     :: 2021-10-31 18:00:02
            NOTE: This is a single cluster extracted from a larger record!
            Orig. start  :: 169481
            Orig. end    :: 214871
            ##antiSMASH-Data-END##
FEATURES             Location/Qualifiers
     protocluster    1..45390
                     /aStool="rule-based-clusters"
                     /contig_edge="False"
                     /core_location="join{[194767:194871](-),
                     [194650:194652](-), [191596:194619](-),
                     [189481:191503](-)}"
                     /cutoff="20000"
                     /detection_rule="cds(Condensation and (AMP-binding or
                     A-OX))"
                     /neighbourhood="20000"
                     /product="NRPS"
                     /protocluster_number="1"
                     /tool="antismash"
     proto_core      complement(join(20001..22022,22116..25138,25170..25171,

尾 sca_11_chr8_3_0.region001.gbk

    44881 ggagcttgtg gagagaagtg agacgtatcg cacgaatgct cttcagcaga tgctgggcag
    44941 ttagaggatt tgcactttag tttcatagag ttgatgtgtc gaggagataa tttgagatac
    45001 cagtatatgt aatttaccta cctacctagt cgagattgga cattgtacaa gagaaataac
    45061 aactaactat acgagacaag cctgatgtgt tgatagtttc attcatgtct ggtgtttgtg
    45121 gcatgtttat gttggagtag ctgtacagaa gataccgcgc tattcccagt gatcatggcc
    45181 cccacgcctc caactcggca cctgaccttg atcccctttg ggaagcatgt ctcagtgtct
    45241 cagccgtgag ccgtagaggc tgcacagcat ggagaagctg tcctgtcaat tcaggggatt
    45301 tgcccacggg ggctatcata tgatgaatct cggacaccct acacgttgtt accgcctttc
    45361 ttagctcctg ctggtagccg tcccctgaac
//

首先，我将 gbk 文件连接成一个，以便它包含所有预测的簇，然后 grep 给出轨迹 id、簇的开始和结束以及簇类型的字符。

cat sca_*.gbk > Necha2_SMclusters.gbk
grep "DEFINITION\|Orig\|product=" Necha2_SMclusters.gbk > Necha2_SMclusters_filtered.txt

这给了我一个像这样的文件

DEFINITION  sca_32_chr11_3_0.
            Orig. start  :: 381231
            Orig. end    :: 428233
                     /product="T1PKS"
                     /product="T1PKS"
                     /product="T1PKS"
                     /product="T1PKS"
DEFINITION  sca_32_chr11_3_0.
            Orig. start  :: 464307
            Orig. end    :: 486217
                     /product="terpene"
                     /product="terpene"
                     /product="terpene"
                     /product="terpene"
DEFINITION  sca_33_chr6_1_0.
            Orig. start  :: 140267
            Orig. end    :: 227928
                     /product="NRPS-like"
                     /product="T1PKS"
                     /product="NRPS-like"
                     /product="T1PKS"
                     /product="NRPS-like"
                     /product="NRPS-like"
                     /product="NRPS-like"
                     /product="T1PKS"
                     /product="T1PKS"
                     /product="T1PKS"
DEFINITION  sca_39_chr11_5_0.
            Orig. start  :: 270154
            Orig. end    :: 324310
                     /product="NRPS"
                     /product="NRPS"
                     /product="NRPS"
                     /product="NRPS"

我想从这个文件中获取一个如下所示的文件。

Locus name  start   end ClusterType
sca_9_chr7_10_0.    369577  421460  T1PKS,NRPS
sca_33_chr6_1_0.    140267  227928  NRPS-like, T1PKS
sca_32_chr11_3_0    381231  428233  T1PKS

现在，这就是我需要一个包含所有预测集群的文件。

太感谢了！！

答案1

给定此示例输入：

$ cat file1.gbk
DEFINITION  sca_32_chr11_3_0.
foo
            Orig. start  :: 381231
            Orig. end    :: 428233
                     /product="T1PKS"
                     /product="T1PKS"
bar
                     /product="T1PKS"
                     /product="T1PKS"
//
stuff
DEFINITION  sca_32_chr11_3_0.
            Orig. start  :: 464307
            Orig. end    :: 486217
                     /product="terpene"
nonsense
                     /product="terpene"
                     /product="terpene"
                     /product="terpene"
//
DEFINITION  sca_33_chr6_1_0.
            Orig. start  :: 140267
            Orig. end    :: 227928
                     /product="NRPS-like"
                     /product="T1PKS"
whatever
                     /product="NRPS-like"
                     /product="T1PKS"
                     /product="NRPS-like"
                     /product="NRPS-like"
                     /product="NRPS-like"
                     /product="T1PKS"
                     /product="T1PKS"
                     /product="T1PKS"


$ cat file2.gbk
here we go
DEFINITION  sca_39_chr11_5_0.
            Orig. start  :: 270154
more irrelevant text
            Orig. end    :: 324310
                     /product="NRPS"
                     /product="NRPS"
                     /product="NRPS"
                     /product="NRPS"

这个脚本：

$ cat tst.awk
BEGIN { OFS="\t" }
$1 == "DEFINITION"    {
    if ( ++cnt == 1 ) {
        print "Locus name", "start", "end", "ClusterType"
    }
    prt()
    locus = $2
}
/Orig\. start/        { start = $NF }
/Orig\. end/          { end = $NF }
sub(".*/product=","") { gsub(/"/,""); types[$NF] }
END { prt() }

function prt(   ct, type) {
    if ( locus != "" ) {
        for (type in types) {
            ct = (ct=="" ? "" : ct ",") type
        }
        print locus, start, end, ct
    }
    delete types
    locus = ""
}

将产生以下输出：

$ awk -f tst.awk *.gbk
Locus name      start   end     ClusterType
sca_32_chr11_3_0.       381231  428233  T1PKS
sca_32_chr11_3_0.       464307  486217  terpene
sca_33_chr6_1_0.        140267  227928  T1PKS,NRPS-like
sca_39_chr11_5_0.       270154  324310  NRPS

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