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add serial number begining of each line in a text file

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# 1  
Old 11-04-2011
add serial number begining of each line in a text file
Dear All,

i am having text file below

rama 123 done
raju 456 not done
keshav 123 done
...............
............

i want to add a serial number to this file, the output should be

1 rama 123 done
2 raju 456 not done
3 keshav 123 done

99 ...............
100 ............

can anybody help me
# 2  
Old 11-04-2011
https://www.unix.com/shell-programmin...text-file.html
# 3  
Old 11-04-2011
Try this
Code:
sed "=" test1.txt | sed "N;s/\n/ /"

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Mod Comment Video tutorial on how to use code tags in The UNIX and Linux Forums.
Last edited by vbe; 11-04-2011 at 10:30 AM..
# 4  
Old 11-04-2011
one more apart from CarloM's attachment..
Code:
$ sed = infile | paste -d' ' - -

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