Hi,

I have a set of 10000 files. In all of them, the second line, looks like:

AAA 3.429 3.84

so there is just one space (requirement) between AAA and the two other columns. The rest of lines on each file are completely different and correspond to 10 columns of numbers.

Randomly, in around 20% of the files, and due to some errors, one gets

BBB  3.429 3.84

so now there are two spaces between the first and second column.

This is a big error so I need to fix it, changing from 2 to 1 space in the files where the error takes place.

The first approach I thought of was to write a bash script that for each file reads the 3 values of the second line and then prints them with just one space, doing it for all the files.

I wonder what do oyu think about this approach and if you could suggest something better, bashm python or someother approach.

Thanks