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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}}