Tag: awk examples

awk OFS field separator with examples

Awk OFS field separator variable, output field separator. It is a pair with the Awk FS variable; awk FS separates strings as fields, and awk...

awk FS field separate with examples

awk separate string, you can use awk FS variable or awk -F option to support single delimiter and multiple delimiter regular matching....

AWK tutorial: awk group by count

When we are dealing with log files, we often need to count the number of times some keywords appear. For example, count the number of...

awk merge files base on the keyword

use the awk variables NR and FNR merge files base on the keywords. awk -F' ' 'NR==FNR{a[$1]=$2;}NR!=FNR{print $0, a[$1]}' test-4.txt test-5.txt...

awk custom function and examples

Here, you need to use the awk custom function to implement the abs function. awk 'function abs(x){return (x < 0) ? -x : x;} {print...