upper — convert a string to upper case
upper(s: string) -> string
The upper function converts all lower case Unicode characters in s
to upper case and returns the result.
echo '"Zed"' | zq -z 'yield upper(this)' -
=>
"ZED"
Slices can be used to uppercase a subset of a string as well.
echo '"zed"' | zq -z 'func upper_first_char(str): (upper(str[0:1]) + str[1:]) yield upper_first_char(this)' -
=>
"Zed"