$1 == "BBB" {
maxS2= ( maxS2> $2 ? maxS2: $2 )
maxS4= ( maxS4> $4 ? maxS4: $4 )
}
END{
print "max of S2 is:" maxS2 ORS "max of S4 is:" maxS4
}
JDE9PSJCQkIiewogIG1heFMyPShtYXhTMj4kMj9tYXhTMjokMikKICBtYXhTND0obWF4UzQ+JDQ/bWF4UzQ6JDQpCn0KRU5EewogIHByaW50ICJtYXggb2YgUzIgaXM6IiBtYXhTMiBPUlMgIm1heCBvZiBTNCBpczoiIG1heFM0Cn0=
stdin
UzEgUzIgUzMgUzQgCiAgIC0tLSAtLS0gLSAtLQogICBBQUEgMTAwIEEgOTkKICAgQkJCIDIwMCBCIDkwCiAgIENDQyAzMDAgQyA4MAogICBBQUEgNDAwIEEgNzAKICAgQkJCIDUwMCBCIDYwCiAgIENDQyA2MDAgQyA1MAogICBBQUEgNzAwIEEgNDAKICAgQkJCIDgwMCBCIDMwCiAgIENDQyA5MDAgQyAyMAogICBBQUEgOTk5IEEgMTA=
S1 S2 S3 S4
--- --- - --
AAA 100 A 99
BBB 200 B 90
CCC 300 C 80
AAA 400 A 70
BBB 500 B 60
CCC 600 C 50
AAA 700 A 40
BBB 800 B 30
CCC 900 C 20
AAA 999 A 10