Command to work on all files in a folder and output result to single file

Question

I have a list of files, 10 to be exact, in a recipe folder. I must determine the number of occurences of each word in all the files and then order them according to these frequencies. I can get my command to work on one file at a time, but I need it to work on each file at once and then output to one single file. For example: The word salt appears a total of 25 times overall, then output would be: 25 salt. So far I have this:

sed -d 's/\s/\n/g' < lyrics01.txt | sort | uniq -c | sort -nr >> lyrics01wordcount.tf

I need this to be altered to work on every file in the directory, I understand why it is working on one above. Any help would be much appreciated.

Answer 1

sed -d 's/\s/\n/g' * | sort | uniq -c | sort -nr >> lyrics01wordcount.tf

Simple.

Answer 2

Two things:

1. You don't need to use redirection with sed. It treats any filenames as input data. So sed ... lyrics01.txt works just as well as sed ... < lyrics01.txt (better, in fact, because...)
2. Without redirection, you can specify multiple files to sed: sed ... file1 file2 ..., or, in your case, just sed ... *.txt.