Form Feed...

johnny_woo · #1 (**permalink**) 10-30-2003

Hi,

I've a text file that has a formfeed character at the beginning.
I want to get rid of this formfeed character using sed.

But I don't know how to specify the formfeed character.
I've tried \014 (octal for formfeed), \f but still not works.

Regards,

Johnny

oombera · #2 (**permalink**) 10-31-2003

There've been quite a few posts on removing control characters.
Here's a couple:

Removing carriage return characters from file
getting rid of control characters

johnny_woo · #3 (**permalink**) 10-31-2003

Hi, oombera,

Thanks for the information.

Actually I use ORACLE SQLPLUS to generate
a text file with form feeds before each page
(including the 1st page).
So I want to get rid of the FIRST formfeed so as
not to waste a piece of paper.

I try to use sed with a command

1s/\f//

but does not work.

Regards,

Johnny

Vishnu · #4 (**permalink**) 10-31-2003

try...

tr -d "\f" <filename>

warm regards,
Vishnu

johnny_woo · #5 (**permalink**) 10-31-2003

Hi, Vishnu,

Thanks for the information.

But tr -d "\f" will remove all FF,
not just the FIRST FF.

Regards,

Johnny

Ygor · #6 (**permalink**) 10-31-2003

If the form-feed is within the first 10 lines, try....

Code:

sed '1,10s/^L//' file1 > file2

....where ^L is Ctrl-V Ctrl-L

OR

To remove only the first line-feed in the file, try....

Code:

awk '/\014/&&f<1{sub("\014","");f=1};1' file1 > file2

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