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A light-weight command line interface to split large files and merge them back.

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the-other-mariana/cylf

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cylf

cylf will cut your files into binary chunks that can be re-merged together using only the name of the original file.

This comes in handy when a hosting service has file size limit in the files you upload: with cylf you cut them following the size limit so that upload is allowed, and then in any desired machine you dowload those pieces and merge them using cylf again!

Usage

  1. Download the binary you need.

  2. In the same folder you got the binary, store the needed input files/folders.

Run The Executables

  • Inside bin/ folder, you will find the folders that hold the two executables (cutter + merger) of the program. Currently cylf is available for:

    • Linux Ubuntu

    • Windows 10

Linux

Open a terminal, go to the directory where the two executables and all the input files are located correctly, and type:

./cylf -a cut -n 95 -f <FILE_NAME.EXT>

or

./cylf -a merge -i <FOLDER_NAME_WITH_PARTS> -f <OUT_FILE_NAME.EXT>

depending on the action you want to do. Notice that <FOLDER_NAME_WITH_PARTS> is just the name of the folder, not the path.

*Note: if you run sudo chmod 777 cylf before any of the two commands above, you can replace ./cylf with cylf inside such commands. Also, if you want the output written to a file, add at the end of the command: > output.txt.

Windows 10

Open a terminal, go to the directory where the two executables and all the input files are located correctly, and type:

start cylf.exe -a cut -n 95 -f <FILE_NAME.EXT>

or

start cylf.exe -a merge -i <FOLDER_WITH_PARTS> -f <OUT_FILE_NAME.EXT>

depending on the action you want to do.

Run The Source Code

  • Go Version: go1.18.3 linux/amd64

Open a terminal inside ./src/folder and type:

export GO111MODULE=off

in order to avoid error messages such as package XXX is not in GOROOT or similar.

Then, type:

go run cylf.go -a cut -n 95 -f <FILE_NAME.EXT>

or

go run cylf.go -a merge -i <FOLDER_NAME_WITH_PARTS> -f <OUT_FILE_NAME.EXT>

depending on the action you want to do

img

To Cross Compile The Source Code

  • Windows 10
GOOS=windows GOARCH=amd64 go build cylf.go
  • Raspberry Pi 3 Model B
GOOS=linux GOARCH=arm go build cylf.go

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A light-weight command line interface to split large files and merge them back.

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