Write a bash script to calculate the frequency of each word in a text file words.txt
.
For simplicity sake, you may assume:
words.txt
contains only lowercase characters and space' '
characters.- Each word must consist of lowercase characters only.
- Words are separated by one or more whitespace characters.
For example, assume that words.txt
has the following content:
the day is sunny the the the sunny is is
Your script should output the following, sorted by descending frequency:
the 4 is 3 sunny 2 day 1
Note:
Don’t worry about handling ties, it is guaranteed that each word’s frequency count is unique.
Solution
bash
1 2 3 |
# Author: Huahua # Running time: 8 ms (beats 99.80%) cat words.txt | tr -s " " "\n" | sort | uniq -c | sort -r | awk '{print $2, $1}' |