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$ hd test.bin
00000000  e8 06 00 00 00 74 65 73  74 0a 00 b8 04 00 00 00  |.....test.......|
00000010  bb 01 00 00 00 59 ba 05  00 00 00 cd 80 c3        |.....Y........|

hd is supposed to be able to read hex,but how to install it?

Here's what I tried:

$# yum install hd
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * addons:
 * base:
 * epel:
 * extras:
 * updates:
Setting up Install Process
No package hd available.
Nothing to do
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If you don't know the package name you can also install by path, e.g. try yum install /usr/bin/hd – Rup Apr 7 '11 at 15:55
up vote 2 down vote accepted

hexdump(1) is in the util-linux package.

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