up=20080412_0309 
copy 410 a
        1 ̃t@CRs[܂B
upcopy a to b
        1 ̃t@CRs[܂B
upcopy a to b
copy 412 a
        1 ̃t@CRs[܂B
upcopy a to b
        1 ̃t@CRs[܂B
upcopy a to b
copy 410 a
        1 ̃t@CRs[܂B
upcopy a to b
[WARNING] b.txt is newer than a.txt
upcopy c to b
[ERROR] not found c.txt
