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This article mainly introduces how to deal with the file path of perl, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

In the past, regular expressions were written by themselves when dealing with file paths, but using perl modules to solve them is faster and more accurate.

The module used File::Basename

There are three methods: fileparse, basename, and dirname.

Its usage is as follows:

(name,$path,$suffix) = fileparse ($fullname,@suffixlist)

$basename = basename ($fullname,@suffixlist)

$dirname = dirname ($fullname)

Description:

1. The method basename takes only the file name, for example

/ wangq/project/4910_Epididymal.fq.gz

Then output $filename = = > 4910_Epididymal.fq.gz

two。 The method dirname takes only the part of the path, for example

/ wangq/project/4910_Epididymal.fq.gz

Then output $path = > / share/nas1/wangq/project

3. The method fileparse splits the full path of a file into three parts, the file name, directory name, and suffix, and @ suffixlist is a collection of suffixes. For example

/ wangq/project/4910_Epididymal.fq.gzfq.gz ")

Then output $base = = > 4910 Epididymal; $path = = > / share/nas1/wangq/project/; $type = = > .fq.gz

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