Answer Posted / vipul dalwala

echo "hi pravin how are you?" | awk 'BEGIN { ORS = ""
upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
lower = "abcdefghijklmnopqrstuvwxyz" }
{
for (i = 1; i <= NF; i++) {
FC = substr($i, 1, 1)
if (C = index(lower, FC))
FC = substr(upper, C, 1)
print FC substr($i,2) " "
}
print "\n"
}'

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