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1.1 root 1: #create X3
2: stuff
3: #print
4: The list of file names from "ls" can also be obtained
5: sorted by the date the file was most recently changed,
6: with the newest files listed first. This list is
7: obtained by typing "ls -t".
8:
9: What is the oldest file in this directory?
10: Type "answer name", where "name" is the oldest file.
11: #create X1
12: stuff
13: #create X2
14: stuff
15: #copyin
16: #user
17: #uncopyin
18: ls -t | tail -1 >X1
19: tail -1 .copy >test
20: #cmp X1 test
21: #log
22: #next
23: 0.1f 10
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