numbering blanks

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# 1  
Old 11-22-2006
Question numbering blanks

hello i'm trying to figure out how to number a blank line. For instance this :
sed '/./=' file | sed '/./N; s/\n/ /'

gives me
1 aaaa
2 bbbbbb

4 cccccc
5 ffkkkfff
6 ffsdfdfs

I would like something like this:
1 aaaaa
3 bbbbbb
5 cccccc

And so on... What would i have to do?
I appreciate any help. Thanks.
# 2  
Old 11-22-2006
Do you mind using awk?
awk 'BEGIN {x=1;} {print x,$0;x++}' filename

# 3  
Old 11-22-2006
pr -t -n filename

# 4  
Old 11-22-2006
Originally Posted by blowtorch
Do you mind using awk?
awk 'BEGIN {x=1;} {print x,$0;x++}' filename

Is incremental really needed ? Smilie

what about this,

awk '{ printf "%d %s\n", NR, $0 }' filename

1 aaaa
2 eeee
4 bbbb
6 cccc
# 5  
Old 11-22-2006
Good point... was probably in dummy mode when I wrote that.
# 6  
Old 11-22-2006
using sed
sed = myfile | sed 'N;s/\n/\t/'

....numbers all the lines in a file.
# 7  
Old 11-22-2006
Thanks everyone.
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