what does awk 1 file mean?

JamesByars · #1 (**permalink**) 10-12-2008

I have a file with no eof, and I want to change it, I know I can do awk 1 file > file2, but I would like to know what awk 1 means?

thanks

cfajohnson · #2 (**permalink**) 10-12-2008

Quote:

Originally Posted by JamesByars

I have a file with no eof,

In Unix, there is no such thing as EOF. Do you mean it is missing a final newline?

Quote:

and I want to change it, I know I can do awk 1 file > file2, but I would like to know what awk 1 means?

1 is a pattern that is always true. In the absence of an action ( {...} ), awk prints the line.

Franklin52 · #3 (**permalink**) 10-12-2008

awk evaluates the 1 as true and the prints the entire line by default, including a newline.

Regards

JamesByars · #4 (**permalink**) 11-01-2008

thanks

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