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Unix 如何提取已知位置的基_Unix_Position_Extract_Sequence - Fatal编程技术网

Unix 如何提取已知位置的基

Unix 如何提取已知位置的基,unix,position,extract,sequence,Unix,Position,Extract,Sequence,我这里有个问题 Seq1 [organism=Carpodacus mexicanus] C.mexicanus clone CCTTTATCTTTATCTAGGAGCATGAGCTGGCATAGTTGGAACCGCCCTCAGCCTCCTCATCCGTGCAGAA CTTGGACAACCTGGAACTCTTCTAGGAGACGACCAAATTTACAATGTAATCGTCACTGCCCACGCCTTCG TAATAATTTTCTTTATAGTAATACCAATCATGATCGGTGGTTTCG

我这里有个问题

Seq1 [organism=Carpodacus mexicanus] C.mexicanus clone CCTTTATCTTTATCTAGGAGCATGAGCTGGCATAGTTGGAACCGCCCTCAGCCTCCTCATCCGTGCAGAA CTTGGACAACCTGGAACTCTTCTAGGAGACGACCAAATTTACAATGTAATCGTCACTGCCCACGCCTTCG TAATAATTTTCTTTATAGTAATACCAATCATGATCGGTGGTTTCGGAAACTGACTAGTCCCACTCATAAT CGGCGCCCCCGACATAGCATTCCCCCGTATAAACAACATAAGCTTCTGACTACTTCCCCCATCATTTCTT TTACTTCTAGCATCCTCCACAGTAGAAGCTGGAGCAGGAACAGGGTGAACAGTATATCCCCCTCTCGCTG GTAACCTAGCCCATGCCGGTGCTTCAGTAGACCTAGCCATCTTCTCCCTCCACTTAGCAGGTGTTTCCTC TATCCTAGGTGCTATTAACTTTATTACAACCGCCATCAACATAAAACCCCCAACCCTCTCCCAATACCAA ACCCCCCTATTCGTATGATCAGTCCTTATTACCGCCGTCCTTCTCCTACTCTCTCTCCCAGTCCTCGCTG CTGGCATTACTATACTACTAACAGACCGAAACCTAAACACTACGTTCTTTGACCCAGCTGGAGGAGGAGA CCCAGTCCTGTACCAACACCTCTTCTGATTCTTCGGCCATCCAGAAGTCTATATCCTCATTTTAC Seq1[生物体=墨西哥腕足类]墨西哥腕足类克隆 CCTTATCTTATTCTAGGAGCATGAGGCTGGATGTGACCGCCCTCAGCCTCTCGCAGAA CTTGGACACACCTGGACTCTTCTAGGAGACGACCAATTTACCAATGTAATCGTCACGCCCCCTTCG TAATATTTTTTTTTATATTATATATACATCATCATGATCGGTTTCGGAAACTGACTAGTCCATCAAT CGGCGCCCCCGACATAGCATTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCT TTACTTCTAGCTCCAGAGTAGAGCTGCGAGGAGAGAGGAGAGACAGGGGTGACAGTATCCCCTCGCTG GTAACCTAGCCGGTGCTTCAGTAGACCTAGCATTCTTCTCCCTCCACTCTAGCAGGTTTCCTC TATCTCAGGTGCTACTATTATTACACACACACGCCATCACACACAAAACCCCCACACACCCTCCCAATACCAA ACCCCATTCGTATGATCAGTCTTTTATACGCCGTCTTCTCTCTCTCTCCAGTCGCTG CTGGCATACTATATACACAGACGAACCTAAACACTACGTTCTTTGACCAGCTCGGAGAGGA CCCAGTCTGCTACCACCTTCTGATTCTCTCTCGGCCATCCACTCAGAGTCATCCTCATTAC 如果我有一个如上所述的fasta文件(每行70个碱基),并且我想确定位置为210的基本字符是什么(例如:210个碱基:T),那么unix中的命令行是什么?非常感谢您的帮助。

$tr-d'\n'
  • 从文件中删除所有换行符
  • 打印字节210
或者如果你想要一个范围

$tr-d'\n'
但是,我稍微修改了代码,因为fasta文件也包含头行,这里有:cat mexicanus.fasta | grep-v Seq1 | tr-d'\n'| cut-b210