Deleting lines

[ceduardo]

Hi

Ive been just introduced to AWK and seems to be a powerfull tool.
My problem is that I have thaousands of files that will be read by different applications, and some of them DO NOT ACCEPT a header that is already written in these files.

How would be a AWK script that should:
1. read diferent files in the same directory
2. remove the first 66 lines of each of these files
3. rename the new files

Thanks in advance

Carlos

 

[PHV]

What have you tried so far and where in your code are you stuck ?

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[feherke]

Hi

1. read diferent files in the same directory

Regular [tt]awk[/tt] implementations can not get the list of files in a directory. You have to use external tool for that.

2. remove the first 66 lines of each of these files

Regular [tt]awk[/tt] implementations does not modify the files. They have access only to the data loaded into the memory.

3. rename the new files

Regular [tt]awk[/tt] implementations can not rename a file. You have to use external tool for that.

Assuming [tt]bash[/tt] or [tt]ksh[/tt] shell :

for f in *; do
  awk 'NR>66' "$f" > "$f.new"
done

Feherke.

http://rootshell.be/~feherke/