2 # A directory older than the listed entry was skipped completely.
11 # On Nextstep (and perhaps other 4.3BSD systems),
12 # a newly created file's ctime isn't updated
13 # until the next sync or stat operation on the file.
14 ls -l structure/file >/dev/null
16 # If the time of an initial backup and the creation time of a file contained
17 # in that backup are the same, the file will be backed up again when an
18 # incremental backup is done, because the incremental backup backs up
19 # files created `on or after' the initial backup time. Without the sleep
20 # command, behaviour of tar becomes variable, depending whether the system
21 # clock ticked over to the next second between creating the file and
25 tar cf archive --format=gnu --listed=list structure
26 tar cfv archive --format=gnu --listed=list structure
29 echo y >structure/file
30 tar cfv archive --format=gnu --listed=list structure