mobaxterm (linux) decompresses 7z.001.001/7z.002.002 equal volume files

        When downloading the github code dataset, files such as 7z.001.001 are usually downloaded. These files are generated because the total file is too large, so it is divided into n sub-volumes evenly during compression, that is, 001/002/003. To get data files that can be used directly, these data files need to be decompressed first. However, 00x files alone cannot be decompressed ( because they are just sub-volumes of files !!!), all files should be merged and restored before decompression. The specific method is:

The following is divided into linux system and windows system to introduce the practice

One, linux:

①Merge files:

Enter the folder where the volume is located, use the command

cat {文件名1} {文件名2} {文件名n}  > {生成文件名}

Take the file name shapeNetP2M.7z as an example

cat ShapeNetP2M.7z-001.001 ShapeNetP2M.7z-002.002 ShapeNetP2M.7z-003.003 ShapeNetP2M.7z-004.004 >ShapeNetP2M.7z

 Generate files in this directory

 ②Decompress the 7z file using instructions 

'''格式为 7zr e {文件路径}'''
7zr e "ShapeNetP2M.7z"

Get the file with suffix tgz. The file is still compressed and requires further decompression

 

③Decompress the tgz file

Use instructions. After ./, add the path of the target folder to which the file is extracted. If not added, it will be decompressed to the current folder by default

tar zxvf  文件名.tgz -C ./ 

 Finish!

2. Unzip the file under windows.

①Open the cmd command line, cd to enter the path where the file is located.

②Use instructions:

copy /b  filename.7z* filename.7z

where filename is replaced with your filename. Note that you only need to change the prefix. 

 Successfully generated merged file named .7z!