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Joining lines in a file - help!

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# 8  
Old 05-22-2012
and to eliminate the space from beginning do the code:-

Code:
gawk '/^R/&&s{sub(/^[ ]/,"",s) ; print s ; s=""}{s=s" "$0}END{sub(/^[ ]/,"",s);printf s}' file.txt

This User Gave Thanks to ahmad.diab For This Post:
Storms
# 9  
Old 05-22-2012
Code:
xargs -n 4 < infile

# 10  
Old 05-22-2012
huaihaizi3:-

what if "This is Line 1" is containing more than 4 args?

---------- Post updated at 18:01 ---------- Previous update was at 17:49 ----------

or even you can do below:-

Code:
gawk '/^R/&&s{print s ; s=""}{s=s" "$0; sub(/^[ ]/,"",s) }END{printf s}' file.txt

Smilie
This User Gave Thanks to ahmad.diab For This Post:
# 11  
Old 05-22-2012
Quote:
Originally Posted by ahmad.diab
and to eliminate the space from beginning do the code:-

Code:
gawk '/^R/&&s{sub(/^[ ]/,"",s) ; print s ; s=""}{s=s" "$0}END{sub(/^[ ]/,"",s);printf s}' file.txt

great stuff that works a treat


i was gonna put a space at the beginning of each line that doesnt start with R by the following:
sed -i '/R|/!s/^/ /' file4

then run the original solution, however yours is much cleaner
# 12  
Old 05-22-2012
Code:
# cat file
R|This is line 1$
R|This is   $
line 2$
R|This is line 3$
R|This is line 4$
R|This is  $
line 5$
R|This is $
line 6$
R|This is$
line 7$

Code:
# awk '{if(!/^ *line/){x=$0;s1=gensub("(.*is).*","\\1",x);s=gensub("is(.*)","\\1",x);if(s~/ +/)s=" ";if(/line/)print x}\
else{xx=xx?xxFS$0:$0;print s1 s xx}}' file
R|This is line 1
R|This is line 2
R|This is line 3
R|This is line 4
R|This is line 5
R|This is line 6
R|This is line 7

regards
ygemici
# 13  
Old 05-23-2012
with sed

Code:
 sed '
/[^[:digit:]]$/ {
N
s/\n//g
}' filename

# 14  
Old 05-23-2012
My initial data was just an example; the data could be:
Code:
R|This is line 1 and so
it continues|next filesd
and more| still
R|This is line2

Ahmad's gawk line works for this aswell

i.e. gives result
Code:
R|This is line 1 and so it continues|next filesd and more| still
R|This is line2

Just one point though the last line didn't have a new line after it so I just ran
sed -i '$a\' ouputfile

to solve it

(I'm running the script opn multiple files then joining them after, so I need a nerw line at end of file)
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