With terminal: Cut files with split and join them with cat

Interesting article found in the GUTL Wiki, which teaches us how to cut and join files into parts. With the command split we can separate / cut files into pieces (for example, to send them by email).

$ split -b 1m archivo.7z cortado

With this we will obtain files of 1 MB called cut, cut ab, cut ac

With the command cat we can join all the parts of the file to restore it (note that they must all be in the same directory).

$ cat cortado* > new_archivo.7z

To organize ourselves more, we can add a simple underscore or a period at the end of the name of the cut file

$ split -b 1m archivo.7z cortado.

Thus we will obtain the files with the name cut.aa

-b It indicates the size in which the files are to be obtained, it can be specified in KB (-b 200k) or in MB (-b 1m).