HackerRank Cut #7 problem solution

In this HackerRank Cut #7 problem solution we have Given a sentence, identify and display its fourth word. Assume that the space (' ') is the only delimiter between words.

Input Format

A text file with lines of ASCII text only. Each line has exactly one sentence.

Constraints

1 <= N <= 100

(N is the number of lines of text in the input file)

Output Format

The output should contain N lines.

For each input sentence, identify and display its fourth word. Assume that the space (' ') is the only delimiter between words.

Problem solution.

while read line; do
  echo $line | cut -d ' ' -f 4
done

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Second solution.

cut -d " " -f 4-4

Third solution.

cut -d' ' -f4