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

awk -F, '{gsub(/ /,"");for(f=1;f<=NF;f++) print f,$f;exit}' file.csv
-F, use , as field separator gsub() deletes all spaces for(){} loops over all input fields and print their index and value exit exit after first line
Sample Output
$ cat file.csv
foo, bar,baz
1,2,3
4,5,6

$ awk -F, '{gsub(/ /,"");for(f=1;f<=NF;f++) print f,$f;exit}' file.csv
1 foo
2 bar
3 baz

-2
By: sesom42
2015-08-26 09:30:43
awk

2 Alternatives + Submit Alt

What Others Think

First, please add some sample output (or just copy neomefistox's :-) It makes it much easier to quickly understand your command. . You can simplify your awk a bit. Drop the line number test. If you're going to exit after the first line, you don't need it. awk -F, '{for(f=1;f<=NF;f++) print f,$f;exit}' file.csv
flatcap · 320 weeks and 5 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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