tldr/pages/common/awk.md

awk

A versatile programming language for working on files

• Print the fifth column in a space sepearted file

awk '{print $5}' {{filename}}

• Print the third column in a comma sepearted file

awk -F ',' '{print $3}' {{filename}}

• Sum the values in the first column and print the total

awk '{s+=$1} END {print s}' {{filename}}

• Sum the values in the first column and pretty-print the values and then the total

awk '{s+=$1; print $1} END {print "--------"; print s}' {{filename}}