How to concatenate horizontally multiple text files in a folder to have all data in one txt file?

Have 25 files in a folder each having around 1,000,000 rows. And want to have one text file having all the data i.e. 25,000,000 rows.

Answer 1

[Fangjun Jiang]

The old fashion DOS command copy could do the task. You can also call it in MATLAB using system(). The trick is the "+" symbol.

system('copy test1.txt+test2.txt+test3.txt test.txt')

As long as there is a carriage return at the end of each text file, the concatenate looks right.