Shell Programming and Scripting

network1:123:45:6789:01:234:56
network2:12:34:556:778:900:12
network3:...

network1:130:50:6800:10:334:66
network2:18:40:600:800:999:20
network3:...

network1:7:5:11:09:100:10
network2:6:6:44:22:99:8
network3:...

awk '{
  getline s < "file1"; split(s,a,":")
  n=split($0,b,":")
  out=b[1]
  for(i=2;i<=n;i++) {
    out=out ":" b[i] - a[i]
  }
  print out
}' file2

awk '
BEGIN { FS = OFS = ":" }
NR==FNR {
   for (i=2; i<=NF; i++) old[$1,i] = $i;
   next;
}
{
   out = $1;
   for (i=2; i<=NF; i++) out = out OFS ($i-old[$1,i]);
   print out;
}
' net_old.dat net_new.dat

cat f1 f2 | sort | paste -d: - - | awk -F":" '{
cnt=NF/2
printf $1
for(i=2;i<=cnt;i++){
 printf ":"$(i+cnt)-$i
}
print ""
}'

paste <(sort file1) <(sort file2)| awk -F"[: ]" '{ print $1" "($8-$2)" "($9-$3)" "($10-$4)" "($11-$5)" "($12-$6) }'