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This article mainly introduces "linux operation command example analysis". In daily operation, I believe many people have doubts about linux operation command example analysis. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "linux operation command example analysis". Next, please follow the editor to study!

Extract the rar compressed file tar-xf GSE58831_RAW.tar

Extract the gz compressed file for i in $(ls * .gz) in batches; do bgzip-d $I position done

Cut specifies the delimiter to split the file

Someone asked to change the name of the fasta sequence in batches. His fasta file format is

> seq1 | blabla

ATCG

> seq2 | bbbbb

ATCG

He wants to remove all the contents after the vertical bar of the sequence name. My own idea is to python, identify the line that begins with the greater than sign, and then split the string with the vertical bar, which can be written into the file. A teacher in the group directly gives the cut command of linux.

Cat pra.fasta | cut-d "|"-f 1

Simple and clear

-d specifies the delimiter, and-f specifies the first column after the output is split

There is also a problem.

In the linux system, the administrator installed the R language, some packages are placed in the specified location. Every time I want to call these package changes under my own account, I find out that one way is to use .libPaths ()

For example, enter the command after the R language starts.

LibPaths (c ("/ A/B/C")) at this point, the study on "linux operation command example analysis" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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