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Old 05-06-2004, 03:34 PM   #1
3inone
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Registered: Jul 2003
Distribution: redhat 8.0, 9.0, FC3
Posts: 32

Rep: Reputation: 15
sed and its hold buffer????????


/\/$/d
s/[\*\=\@\|]$//
s/^\.\//\//
s/^\.:/\//
s/:$//
:loop
/^\/.*$/,/^$/ {
/^$/! {
$! {
/^\/.*$/ {
h
bloop
}
/^\/.*$/!s/^\/.*$/G&/ < ========== line in question
}
}
}


I know that this is not the right syntax; but this is the idea:
I want be able to grab the first line in a block of lines and pre append it to all the rest of the lines in the block. The file at the point of :loop has blocks of lines that start with “/” as the first character in the first line of the block and end the block with a blank line.

Sample data in text file

/this is the first line
the second
the third
the forth
< ===== blank line – end of block

to end up with after sed runs its script file

/this is the first line
/this is the first line the second
/this is the first line the third
/this is the first line the forth
< ===== blank line – end of block
PS the space inserted between “line” and “the” is intended.
 
Old 05-06-2004, 03:35 PM   #2
3inone
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Registered: Jul 2003
Distribution: redhat 8.0, 9.0, FC3
Posts: 32

Original Poster
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sorry about the lost of format (damn windoze machine).
 
Old 05-07-2004, 05:56 AM   #3
arvind_sv
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Registered: Oct 2002
Location: Bangalore
Distribution: Gentoo Linux
Posts: 96

Rep: Reputation: 16
Hi,

How about something like this?

Code:
:s
h
p
n

:x
/^$/! {
    G
    s/\(.*\)\n\(.*\)/\2 \1/
    p
    n
    bx
}

p
n
bs
Arvind
 
  


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