catch empty string into array #bash

catch-empty-string-into-array.bash

# catch empty strings into an array using `read`
# normal array assignment isn't able to catch emptry string.
 
unset k 2>/dev/null
while IFS=$'\n' read -r item; do k+=("$item"); done < <(printf "\n\n\n")
echo ${#k[@]}
[[ -z ${k[0]} ]] && echo "empty string is catched"


f() {
  local o=('' '' '')
  printf '%s\n' "${o[@]}"
}
unset k 2>/dev/null
while IFS=$'\n' read -r item; do k+=("$item"); done < <(f)
echo ${#k[@]}