Printout a list of field numbers (awk index) from a CSV file with headers as first line.

head -1 file.csv | tr ',' '\n' | tr -d " " | awk '{print NR,$0}'
Useful to identify the field number in big CSV files with large number of fields. The index is the reference to use in processing with commands like 'cut' or 'awk' involved.
Sample Output
$ cat file.csv
ID, EMPLOYEE, AGE, SALARY
2,Jack Sparrow,41,10000
3,Mr. Bean,55,12900
15,Kermit the frog,25,29300

$ head -1 file.csv | tr ',' '\n' | tr -d " " | awk '{print NR,$0}'
1 ID
2 EMPLOYEE
3 AGE
4 SALARY

1
2015-08-26 05:46:15

2 Alternatives + Submit Alt

What Others Think

Hmm... If you're splitting by comma, then I don't think you want to delete any spaces. That'll break this csv: First Name,Family Name Also using awk to number lines is a bit heavy, that's what "nl" is for: head -1 file.csv | tr ',' '\n' | nl
flatcap · 297 weeks and 4 days ago
">How much is osrs gold worth today? Do you have any idea?
charlesmax23 · 20 weeks and 2 days ago
">How much is osrs gold worth today? Do you have any idea?
charlesmax23 · 20 weeks and 2 days ago
How much is osrs gold worth today? Do you have any idea?
charlesmax23 · 20 weeks and 2 days ago
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Killersmile · 5 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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