Introduction
It often happens that we have split files, such as text files, which contain a set of information split for a reason.
Let me give you an example:
I needed to upload some IP addresses to my firewall blacklist.
Unfortunately I had more than one hundred files, containing this information, splitted by geographical area.
To be honest, I didn’t want to upload the files one at a time.
For this reason, I had thought of creating a single file by unifying all the others.
How-To
We have different solution depending by the OS in use.
Anyway, we will use the cmd-line to perform this operation.
Windows
The command to use is the copy
copy /b *.txt joinfile.txt
OSX and Linux
The command to use is cat
cat *.txt > joinfile.ext