On linux, is there any software that can make virtual files point to multiple files to avoid occupying space repeatedly?

Running platform: CentOS requirement: Similar to optvirtual. file: opt1.fileopt2. fileopt3.file first, I know the merge command, but this will create a new file and occupy space. what I want is to access optvirtual. file, equivalent to system motion... running platform: CentOS

Requirement: similar

/opt/virtual.filePoint:/opt/1.file /opt/2.file /opt/3.file

First, I know the merge command, but this will create a new file and occupy space.

What I want is access/opt/virtual.fileIs equivalent to dynamically merging these three files into one as one for access.

This requirement is not a request to merge js/css in nginx_http_concat.

This is because files are separated by 5 MB/block to ensure stability during File Uploading. although these blocks can also be merged using programs, there is no software for the system to make virtual files, point to these parts, so you don't need to merge them.

Reply content:

Running platform: CentOS

Requirement: similar

/opt/virtual.filePoint:/opt/1.file /opt/2.file /opt/3.file

First, I know the merge command, but this will create a new file and occupy space.

What I want is access/opt/virtual.fileIs equivalent to dynamically merging these three files into one as one for access.

This requirement is not a request to merge js/css in nginx_http_concat.

This is because files are separated by 5 MB/block to ensure stability during File Uploading. although these blocks can also be merged using programs, there is no software for the system to make virtual files, point to these parts, so you don't need to merge them.

This must be achieved using fuse, as well as written by the great God: https://github.com/schlaile/c...

1. Install and compile concatfs

   yum install fuse fuse-develgit clone https://github.com/schlaile/concatfs.gitcd concatfs/srcgcc -Wall concatfs.c `pkg-config fuse --cflags --libs` -o concatfscp ./concatfs /bin

2. Start a directory by attaching
   Original Directory:
   /opt/www/website/
   Contains files
   index.html test.html
   Create a directory to be mounted
   mkdir /opt/www/website_mnt
   Run
   concatfs /opt/www/website/ /opt/www/website_mnt
   If no error is reported, it is already running in the background.

3. Create a special file name including-concat-

   If-concat-is included, it will be specially parsed by concatfs.

   vim /opt/www/website/1-concat-.txt

   Content

   index.htmltest.html

   Note that the ending column also requires a carriage return character LF, otherwise the last file will not be loaded.

4. Access Now/opt/www/website_mnt/1-concat-.txtThe merged data of these two files is returned.
   These two files are dynamically merged, but they are not physically merged.
   Note:website_mnt/1-concat-.txtDirectory
   Accesswebsite/1-concat-.txtStill the original file

5. PS: No test writes/opt/www/website_mnt/1-concat-.txtStatus