grep from file and rename 1

[learningawk]

Could anyone give me a hint on how to use AWK to do the following?

I have a series of files that I want to grep out comment cards that begin with # and then write the output file name with a concatenated extension.

Example:
grep -v "#" input_file_name.dat > input_file_name_converted.dat

Is there also a way to do this in one script to do all the files in a directory that have a similar file_name pattern?

Such as convert all the files that have "input_file" or similar string located in the file name?

Thanks

 

[CaKiwi]

Try this. It assumes only one period in the file names.

awk -f la.awk file1.dat file2.dat

# ------ la.awk ------
{
if (FNR==1) {
if (NR > 1) close(fn)
split (FILENAME,a,".&quot
fn = a[1] "_converted." a[2]
}
if ($0 !~ /^#/) print > fn
}
CaKiwi

 

[learningawk]

CaKiwi,

Thanks very much. It works perfectly.
This is a great help.
I can adapt this to other uses also.