Working with multiple files (newbie) 1

[mare99]

Hi,

I have a lot of files in one directory, for example:

first file looks like this:

t51 21 1 57
t51 41 2 57


second, third... files all look similar. Their names are all different, except they end on .dat

What want to do is to open each file, only print column 2 and 3 and then save it with the same filename. The first file would then look like:

21 1
41 2


Probably this is a simple task?

 

[PHV]

A starting point:
for f in *.dat
do awk '{print $2,$3}' $f > $f.tmp && mv $f.tmp $f
done

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[feherke]

Hi

awk '{print $2,$3 > (FILENAME ".new")}' *.dat
rename '.new' '' *.dat.new

Feherke.

http://rootshell.be/~feherke/

 

[mare99]

Thx.

That was really fast!!

Jesus!