Extract Maximum and minimum value using awk
with gnu awk:
awk '{for(x=1;x<=NF;x++)a[++y]=$x}END{c=asort(a);print "min:",a[1];print "max:",a[c]}'output:
min: 9max: 99without awk:
xargs -n1|sort -n|head or tail -1e.g.
min:
kent$ echo "20 90 60 3055 75 80 8510 15 99 9555 95 70 209 35 85 75"|xargs -n1|sort -n|head -19max:
kent$ echo "20 90 60 3055 75 80 8510 15 99 9555 95 70 209 35 85 75"|xargs -n1|sort -n|tail -199you can of course xargs -n1|sort -n then pipe to awk to pick first and last and print in one shot.
awk 'NR == 1 { min=max=$1 }{ for (i=1;i<=NF;i++) { min = (min < $i ? min : $i) max = (max > $i ? max : $i) }}END { printf "min value = %s\n", (min == "" ? "NaN" : min) printf "max value = %s\n", (max == "" ? "NaN" : max)}' fileThe test resulting in "NaN" is to accommodate empty input files.