How to reduce the length of records in a file?

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# 1  
Old 08-21-2009
How to reduce the length of records in a file?

I have a file with 400 characters
How can I create another file with only a portion of them (like 300 within 400) and get rid of the rest?
# 2  
Old 08-21-2009
I would guess, about 500 different ways. Would be useful if you provided:
  • Platform
  • Shell
  • What's in the file
  • What do you want to extract
# 3  
Old 08-21-2009
Provide us a sample input and the desire output, maybe we can help ^^
# 4  
Old 08-21-2009
mon fichier contient des records paddes avec des blancs a la fin (longueur physique 400)
je veux supprimer les blancs a partir d'un certain offset de maniere a avoir des records de longueur physique 100 par example
# 5  
Old 08-22-2009

awk '{$0=substr($0,1,300);print $0}' infile

# 6  
Old 08-22-2009
Super it works! Thanks a lot.
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