Algorithm
Problem Name: 192. Word Frequency
Problem Link: https://leetcode.com/problems/word-frequency/
Write a bash script to calculate the frequency (The frequency of a word x is the number of times it occurs in the text file) of each word in a text file words.txt.
For simplicity sake, you may assume:
words.txtcontains only lowercase characters and space' 'characters.- Each word must consist of lowercase characters only.
- Words are separated by one or more whitespace characters.
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.
- Could you write it in one-line using Unix pipes?
Code Examples
#1 Code Example with Rust Programming
Code -
Rust Programming
# Read from the file words.txt and output the word frequency list to stdout.
cat words.txt| tr -s ' ' '\n' | sort | uniq -c | sort -r | awk '{print $2, $1}'