AWK one liners [part two]

contd..

Here is a sample csv file

1. Print columns from a csv file 

awk -F "," '{print $1}' abc.csv

awk -F "," '{print $1 "    " $3}' abc.csv

Where -F defines the seperator.

There is an alternate method to use the field separator

Here FS is used to define the filed separator which is “,” in 

this case it could be a whitespace , a tab etc.

2. Display Content of the file without displaying header

awk 'NR!=1 {print $1 "    " $2}' abc.txt

awk 'NR>2 {print $1 "    " $2}' abc.txt

Where NR indicates the row number

3. Saving AWK output to a separate file