Unix/Linux bash shell command help! The file s=/home/SRUNET/david.dailey/data/es.txt contains word frequency lists (from Invoke IT Limited) for Spanish language text (apparently sampled from Internet social media). Not all of the 535232 words contained therein are legitimate parts of Spanish vocabulary. You may need to set your putty language settings (under Change Settings/Window/Translation) to UTF-8 to be able to see the characters as expected. Among the 100,000 most frequently used words in that list (head -100000 $s) find which 30 characters (Spanish letters) begin words most often. Find the commands to output just those 30 characters (separated by spaces instead of carriage returns).