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以 ASCII、十进制、十六进制或八进制显示文件内容。
[root@localhost ~]# hexdump -C /bin/ls | head 00000000 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00 |.ELF............| 00000010 03 00 3e 00 01 00 00 00 00 5e 00 00 00 00 00 00 |..>......^......| 00000020 40 00 00 00 00 00 00 00 38 0b 04 00 00 00 00 00 |@.......8.......| 00000030 00 00 00 00 40 00 38 00 0a 00 40 00 1f 00 1e 00 |....@.8...@.....| 00000040 06 00 00 00 04 00 00 00 40 00 00 00 00 00 00 00 |........@.......| 00000050 40 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 |@.......@.......| 00000060 30 02 00 00 00 00 00 00 30 02 00 00 00 00 00 00 |0.......0.......| 00000070 08 00 00 00 00 00 00 00 03 00 00 00 04 00 00 00 |................| 00000080 70 02 00 00 00 00 00 00 70 02 00 00 00 00 00 00 |p.......p.......| 00000090 70 02 00 00 00 00 00 00 1c 00 00 00 00 00 00 00 |p...............| neo@MacBook-Pro-Neo ~ % hexdump -C /bin/ls | head 00000000 cf fa ed fe 07 00 00 01 03 00 00 00 02 00 00 00 |................| 00000010 13 00 00 00 10 07 00 00 85 00 20 00 00 00 00 00 |.......... .....| 00000020 19 00 00 00 48 00 00 00 5f 5f 50 41 47 45 5a 45 |....H...__PAGEZE| 00000030 52 4f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |RO..............| 00000040 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 |................| 00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000060 00 00 00 00 00 00 00 00 19 00 00 00 28 02 00 00 |............(...| 00000070 5f 5f 54 45 58 54 00 00 00 00 00 00 00 00 00 00 |__TEXT..........| 00000080 00 00 00 00 01 00 00 00 00 50 00 00 00 00 00 00 |.........P......| 00000090 00 00 00 00 00 00 00 00 00 50 00 00 00 00 00 00 |.........P......|