我工作的目录中的权限经常过于复杂而无法有效地使用 scp，因此为了在 ssh 会话之间复制文件/文件夹，我决定拼凑起来tar并base64寻求一个 ghetto 解决方案。A但是，由于某种原因，我在文件末尾得到了一堆s 填充。
例如：
# tar -cO file1.txt file2.txt | hexdump -C
00000000 66 69 6c 65 31 2e 74 78 74 00 00 00 00 00 00 00 |file1.txt.......|
00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000060 00 00 00 00 30 30 30 30 36 34 34 00 30 30 30 30 |....0000644.0000|
00000070 30 30 30 00 30 30 30 30 30 30 30 00 30 30 30 30 |000.0000000.0000|
00000080 30 30 30 30 37 32 32 00 31 32 32 30 32 35 33 37 |0000722.12202537|
00000090 35 33 34 00 30 31 31 33 32 31 00 20 30 00 00 00 |534.011321. 0...|
000000a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000100 00 75 73 74 61 72 20 20 00 72 6f 6f 74 00 00 00 |.ustar .root...|
00000110 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000120 00 00 00 00 00 00 00 00 00 72 6f 6f 74 00 00 00 |.........root...|
00000130 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000200 4c 6f 72 65 6d 20 69 70 73 75 6d 20 64 6f 6c 6f |Lorem ipsum dolo|
00000210 72 20 73 69 74 20 61 6d 65 74 2c 20 63 6f 6e 73 |r sit amet, cons|
00000220 65 63 74 65 74 75 72 20 61 64 69 70 69 73 63 69 |ectetur adipisci|
00000230 6e 67 20 65 6c 69 74 2e 20 49 6e 74 65 67 65 72 |ng elit. Integer|
00000240 20 67 72 61 76 69 64 61 20 73 63 65 6c 65 72 69 | gravida sceleri|
00000250 73 71 75 65 20 73 61 70 69 65 6e 20 69 64 20 61 |sque sapien id a|
00000260 64 69 70 69 73 63 69 6e 67 2e 20 46 75 73 63 65 |dipiscing. Fusce|
00000270 20 69 61 63 75 6c 69 73 20 70 65 6c 6c 65 6e 74 | iaculis pellent|
00000280 65 73 71 75 65 20 76 65 6e 65 6e 61 74 69 73 2e |esque venenatis.|
00000290 20 41 65 6e 65 61 6e 20 70 6f 73 75 65 72 65 20 | Aenean posuere |
000002a0 71 75 61 6d 20 76 69 74 61 65 20 61 6c 69 71 75 |quam vitae aliqu|
000002b0 61 6d 20 73 63 65 6c 65 72 69 73 71 75 65 2e 20 |am scelerisque. |
000002c0 56 65 73 74 69 62 75 6c 75 6d 20 75 74 20 76 6f |Vestibulum ut vo|
000002d0 6c 75 74 70 61 74 20 6a 75 73 74 6f 2e 20 44 6f |lutpat justo. Do|
000002e0 6e 65 63 20 66 72 69 6e 67 69 6c 6c 61 20 65 73 |nec fringilla es|
000002f0 74 20 6e 69 73 6c 2c 20 73 65 64 20 6c 6f 62 6f |t nisl, sed lobo|
00000300 72 74 69 73 20 76 65 6c 69 74 20 6d 6f 6c 65 73 |rtis velit moles|
00000310 74 69 65 20 69 64 2e 20 53 65 64 20 69 6d 70 65 |tie id. Sed impe|
00000320 72 64 69 65 74 20 73 65 6d 70 65 72 20 6d 61 75 |rdiet semper mau|
00000330 72 69 73 20 73 65 64 20 63 6f 6e 67 75 65 2e 20 |ris sed congue. |
00000340 45 74 69 61 6d 20 73 69 74 20 61 6d 65 74 20 6f |Etiam sit amet o|
00000350 64 69 6f 20 76 65 68 69 63 75 6c 61 2c 20 63 6f |dio vehicula, co|
00000360 6e 64 69 6d 65 6e 74 75 6d 20 74 75 72 70 69 73 |ndimentum turpis|
00000370 20 6e 6f 6e 2c 20 76 69 76 65 72 72 61 20 6e 75 | non, viverra nu|
00000380 6e 63 2e 20 53 75 73 70 65 6e 64 69 73 73 65 20 |nc. Suspendisse |
00000390 6c 61 6f 72 65 65 74 20 6d 61 73 73 61 20 65 67 |laoreet massa eg|
000003a0 65 74 20 74 6f 72 74 6f 72 20 73 61 67 69 74 74 |et tortor sagitt|
000003b0 69 73 2c 20 75 74 20 63 6f 6e 73 65 63 74 65 74 |is, ut consectet|
000003c0 75 72 20 6d 61 67 6e 61 20 74 65 6d 70 6f 72 2e |ur magna tempor.|
000003d0 20 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | ...............|
000003e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000400 66 69 6c 65 32 2e 74 78 74 00 00 00 00 00 00 00 |file2.txt.......|
00000410 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000460 00 00 00 00 30 30 30 30 36 34 34 00 30 30 30 30 |....0000644.0000|
00000470 30 30 30 00 30 30 30 30 30 30 30 00 30 30 30 30 |000.0000000.0000|
00000480 30 30 30 31 33 34 37 00 31 32 32 30 32 35 33 37 |0001347.12202537|
00000490 35 36 32 00 30 31 31 33 32 37 00 20 30 00 00 00 |562.011327. 0...|
000004a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000500 00 75 73 74 61 72 20 20 00 72 6f 6f 74 00 00 00 |.ustar .root...|
00000510 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000520 00 00 00 00 00 00 00 00 00 72 6f 6f 74 00 00 00 |.........root...|
00000530 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000600 50 68 61 73 65 6c 6c 75 73 20 6c 6f 72 65 6d 20 |Phasellus lorem |
00000610 6d 65 74 75 73 2c 20 74 69 6e 63 69 64 75 6e 74 |metus, tincidunt|
00000620 20 73 69 74 20 61 6d 65 74 20 61 6c 69 71 75 61 | sit amet aliqua|
00000630 6d 20 61 63 2c 20 68 65 6e 64 72 65 72 69 74 20 |m ac, hendrerit |
00000640 65 74 20 61 6e 74 65 2e 20 43 75 72 61 62 69 74 |et ante. Curabit|
00000650 75 72 20 6c 61 63 69 6e 69 61 20 6e 69 73 69 20 |ur lacinia nisi |
00000660 75 74 20 6f 72 6e 61 72 65 20 63 6f 6e 64 69 6d |ut ornare condim|
00000670 65 6e 74 75 6d 2e 20 41 6c 69 71 75 61 6d 20 65 |entum. Aliquam e|
00000680 72 61 74 20 76 6f 6c 75 74 70 61 74 2e 20 43 75 |rat volutpat. Cu|
00000690 6d 20 73 6f 63 69 69 73 20 6e 61 74 6f 71 75 65 |m sociis natoque|
000006a0 20 70 65 6e 61 74 69 62 75 73 20 65 74 20 6d 61 | penatibus et ma|
000006b0 67 6e 69 73 20 64 69 73 20 70 61 72 74 75 72 69 |gnis dis parturi|
000006c0 65 6e 74 20 6d 6f 6e 74 65 73 2c 20 6e 61 73 63 |ent montes, nasc|
000006d0 65 74 75 72 20 72 69 64 69 63 75 6c 75 73 20 6d |etur ridiculus m|
000006e0 75 73 2e 20 44 6f 6e 65 63 20 66 65 75 67 69 61 |us. Donec feugia|
000006f0 74 2c 20 65 6e 69 6d 20 70 72 65 74 69 75 6d 20 |t, enim pretium |
00000700 69 61 63 75 6c 69 73 20 73 75 73 63 69 70 69 74 |iaculis suscipit|
00000710 2c 20 64 6f 6c 6f 72 20 6d 69 20 63 6f 6e 67 75 |, dolor mi congu|
00000720 65 20 6e 75 6e 63 2c 20 61 20 64 69 67 6e 69 73 |e nunc, a dignis|
00000730 73 69 6d 20 70 75 72 75 73 20 61 6e 74 65 20 73 |sim purus ante s|
00000740 65 64 20 74 65 6c 6c 75 73 2e 20 44 6f 6e 65 63 |ed tellus. Donec|
00000750 20 65 74 20 6e 69 62 68 20 6d 61 6c 65 73 75 61 | et nibh malesua|
00000760 64 61 2c 20 62 69 62 65 6e 64 75 6d 20 6e 69 73 |da, bibendum nis|
00000770 69 20 6e 6f 6e 2c 20 69 6d 70 65 72 64 69 65 74 |i non, imperdiet|
00000780 20 65 72 61 74 2e 20 4e 75 6c 6c 61 20 70 75 6c | erat. Nulla pul|
00000790 76 69 6e 61 72 20 63 75 72 73 75 73 20 72 69 73 |vinar cursus ris|
000007a0 75 73 20 65 67 65 74 20 6d 61 74 74 69 73 2e 20 |us eget mattis. |
000007b0 4e 75 6c 6c 61 6d 20 6c 6f 62 6f 72 74 69 73 20 |Nullam lobortis |
000007c0 69 6e 74 65 72 64 75 6d 20 66 72 69 6e 67 69 6c |interdum fringil|
000007d0 6c 61 2e 20 53 75 73 70 65 6e 64 69 73 73 65 20 |la. Suspendisse |
000007e0 6e 65 63 20 69 70 73 75 6d 20 64 61 70 69 62 75 |nec ipsum dapibu|
000007f0 73 2c 20 6d 6f 6c 6c 69 73 20 66 65 6c 69 73 20 |s, mollis felis |
00000800 69 64 2c 20 72 75 74 72 75 6d 20 61 6e 74 65 2e |id, rutrum ante.|
00000810 20 46 75 73 63 65 20 66 61 63 69 6c 69 73 69 73 | Fusce facilisis|
00000820 20 6d 61 6c 65 73 75 61 64 61 20 6c 61 63 69 6e | malesuada lacin|
00000830 69 61 2e 20 53 65 64 20 76 65 6e 65 6e 61 74 69 |ia. Sed venenati|
00000840 73 20 73 61 67 69 74 74 69 73 20 72 69 73 75 73 |s sagittis risus|
00000850 20 61 20 73 63 65 6c 65 72 69 73 71 75 65 2e 20 | a scelerisque. |
00000860 4d 61 75 72 69 73 20 62 6c 61 6e 64 69 74 20 65 |Mauris blandit e|
00000870 75 69 73 6d 6f 64 20 61 6c 69 71 75 61 6d 2e 20 |uismod aliquam. |
00000880 51 75 69 73 71 75 65 20 61 63 20 73 6f 6c 6c 69 |Quisque ac solli|
00000890 63 69 74 75 64 69 6e 20 6d 69 2c 20 71 75 69 73 |citudin mi, quis|
000008a0 20 76 75 6c 70 75 74 61 74 65 20 6f 64 69 6f 2e | vulputate odio.|
000008b0 20 4e 75 6c 6c 61 6d 20 6d 61 6c 65 73 75 61 64 | Nullam malesuad|
000008c0 61 20 70 65 6c 6c 65 6e 74 65 73 71 75 65 20 6c |a pellentesque l|
000008d0 6f 72 65 6d 20 73 65 64 20 75 6c 6c 61 6d 63 6f |orem sed ullamco|
000008e0 72 70 65 72 2e 20 0a 00 00 00 00 00 00 00 00 00 |rper. ..........|
000008f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00002800
变成：
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我的意思是，这似乎是太多的零。base64 编码对\0我不知道的顺序字节有什么作用吗？hexdump输出这些行是怎么回事*？
编辑
完整的工作命令是：tar -czOb 1 file1.txt file2.txt | base64 -w 0
然后你可以复制输出，运行base64 -d | tar -xzf -，粘贴代码，按回车键和Ctrl+D，你的文件就被移动了。
2021 编辑
哇，我刚刚获得了 2500 次观看的奖项，这是我很久以前搬过去的一个杂物。
如果您想在服务器之间移动文件并在远程端使用sudo，请尝试从scpto切换rsync并包含该标志，该标志--rsync-path='sudo rsync'将rsync在远程计算机上以提升的权限启动。
这是我忘记标志时参考的 AskUbuntu 上的答案：https ://askubuntu.com/questions/719439/using-rsync-with-sudo-on-the-destination-machine