192. Word Frequency
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 Solution: ----------------------- cat word.txt | tr -s ' ' '\n' | sort | uniq -c | sort -r | awk '{print $2, $1}' note: tr -s means: --squeeze-repeats replace each input sequence of a repeated character that is listed in SET1 with a single occurrence of that character