UNIX for Dummies Questions & Answers

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as2 22 21 23
as3 300 391 567
as4 19 20 15

as1 10
as2 21
as3 300
as4 15

#!/bin/bash

while read LINE
do
  FIRST=$( echo $LINE | awk '{print $1}' )
  LOWEST=$( echo $LINE | awk '{print $2"\n"$3"\n"$4}' | sort | head -n 1 )
  echo "$FIRST $LOWEST" >> out.file
done < in.file

exit 0
# finis

[house@leonov] cat in.file
as1 10 20 30
as2 22 21 23
as3 300 391 567
as4 19 20 15
[house@leonov] bash code.bash
[house@leonov] cat out.file
as1 10
as2 21
as3 300
as4 15