Insert a new column with sequence number (Delimiter as comma)

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# 1  
Old 08-11-2015
Insert a new column with sequence number (Delimiter as comma)

Hi All,

I have a file which has data like


And I need to insert a new column at the begining with sequence no( 1 to n)


Please let me know how to acheive this in unix

Last edited by vgersh99; 08-11-2015 at 06:05 PM.. Reason: codse tags, please!
# 2  
Old 08-11-2015
awk -F, '{print FNR,$0}' OFS=, myFile

This User Gave Thanks to vgersh99 For This Post:
# 3  
Old 08-11-2015
nl -nln -s, -w1 weknowd.file

# 4  
Old 08-11-2015
If you'd like fixed-length strings of digits in the added column, you might also want to look at the nl utility, perhaps with options something like:
nl -s, -nrz -w3 file

for right-justified, zero-filled, 3-digit line numbering:

This User Gave Thanks to Don Cragun For This Post:
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