#create X3 stuff #print The list of file names from "ls" can also be obtained sorted by the date the file was most recently changed, with the newest files listed first. This list is obtained by typing "ls -t". What is the oldest file in this directory? Type "answer name", where "name" is the oldest file. #create X1 stuff #create X2 stuff #copyin #user #uncopyin ls -t | tail -1 >X1 tail -1 .copy >test #cmp X1 test #log #next 0.1f 10