Shell Programming and Scripting

100 99
20 99
50 99
50 99

200 85
50 85
100 85

namefile-1 55 99
namefile-2 116 85
namefile-3 avcol1 avcol2
...

 (ls -r | while read filename; do awk '{sum+=$1} END {print sum/NR >> "newfile.tsv"}' $filename ; done)

[user@host ~]$ ls -l file*
-rw-r--r-- 1 user group 25 Nov  5 19:59 file1
-rw-r--r-- 1 user group 20 Nov  5 19:59 file2
[user@host ~]$ cat test.sh
#! /bin/bash

for f in file*
do
    s1=0
    s2=0
    c=0
    while read c1 c2
    do
        s1=$(( s1 + c1 ))
        s2=$(( s2 + c2 ))
        (( c++ ))
    done < $f
    echo "Name: $f --> $(( s1 / c )) $(( s2 / c ))"
done
[user@host ~]$ ./test.sh
Name: file1 --> 55 99
Name: file2 --> 116 85
[user@host ~]$

awk    'FNR==1 && fn        {print fn, sum1/cnt, sum2/cnt; cnt=sum1=sum2=0}
     END             {print fn, sum1/cnt, sum2/cnt}
                {sum1+=$1;sum2+=$2;cnt++;fn=FILENAME}
    ' file1 file2
file1 55 99
file2 116.667 85

ls | while read file
do
  printf "%s" "$file"
  awk '{for (i=1;i<=NF;i++) {a[i]+=$i; c++}} END {for (i=1;i in a;i++) printf " %.f",a[i]/c}' "$file"
  echo ""
done > ../newfile