blocks|key|1186996|text|xxd同时支持二进制和十六进制。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1186997|bin：|1186998|xxd+-b+file|code-block|syntax|javascript|1186999|十六进制：|1187000|xxd+file|1187001|entityMap|0|LINK|mutability|MUTABLE|url|https://linux.die.net/man/1/xxd^0|0|3|0|3|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|F|3|G|5|6|7|14|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|15|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|16|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|17|8|@]|D|@]|E|$K|L]]|$1|Q|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

<a href="https://linux.die.net/man/1/xxd" rel="noreferrer"><code>xxd</code></a> does both binary and hexadecimal.

bin:

<pre><code>xxd -b file
</code></pre>

hex:

<pre><code>xxd file
</code></pre>

blocks|key|1186949|text|hexdump+-C+yourfile.bin|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1186950|当然，除非你想编辑它。大多数linux发行版在默认情况下都有hexdump+(但显然不是全部)。|unstyled|offset|length|style|CODE|1186951|entityMap^0|0|U|7|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@$G|O|H|P|I|J]]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>hexdump -C yourfile.bin
</code></pre>

unless you want to edit it of course. Most linux distros have <code>hexdump</code> by default (but obviously not all).

blocks|key|1186924|text|作为退路，总是有od+-xc+filename|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1186925|entityMap^0|8|F|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

As a fallback there's always <code>od -xc filename</code>

blocks|key|1402629|text|如果要打开二进制文件(在CentOS+7中)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1402630|strings+<binary_filename>|code-block|syntax|javascript|1402631|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you want to open binary files (in CentOS 7):

<pre><code>strings &lt;binary_filename&gt;
</code></pre>

blocks|key|1402380|text|sudo+apt-get+install+bless|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1402381|保佑是图形用户界面工具，可以查看，编辑，搜索和更多。它非常轻。|1402382|entityMap^0|0|Q|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

<code>sudo apt-get install bless</code>

Bless is GUI tool which can view, edit, seach and a lot more.
Its very light weight.

blocks|key|1187085|text|$+echo+-n+'Hello+world!'+%7C+hd
00000000++48+65+6c+6c+6f+20+77+6f++72+6c+64+21++++++++++++++%7CHello+world!%7C
0000000c|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1187086|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>$ echo -n 'Hello world!' | hd
00000000 48 65 6c 6c 6f 20 77 6f 72 6c 64 21 |Hello world!|
0000000c
</code></pre>

blocks|key|1402309|text|参见Improved+Hex+editing+in+the+Vim+Tips+Wiki。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1402310|entityMap|0|LINK|mutability|MUTABLE|url|http://vim.wikia.com/wiki/Improved_Hex_editing^0|2|15|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

See <a href="http://vim.wikia.com/wiki/Improved_Hex_editing" rel="nofollow noreferrer">Improved Hex editing in the Vim Tips Wiki</a>.

blocks|key|1187192|text|您可以打开M-x+hexl-mode+(在终端模式下，例如使用emacs+-nw+)，然后使用十六进制模式:+emacs。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1187193|https://www.gnu.org/software/emacs/manual/html_node/emacs/Editing-Binary-Files.html|1187194|entityMap|0|LINK|mutability|MUTABLE|url^0|5|D|V|9|0|0|2B|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@]|D|@$9|U|A|V|1|W]]|E|$]]|$1|H|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|G]]]]

You can open emacs (in terminal mode, using <code>emacs -nw</code> for instance), and then use Hexl mode: <code>M-x hexl-mode</code>.

<a href="https://www.gnu.org/software/emacs/manual/html_node/emacs/Editing-Binary-Files.html" rel="nofollow noreferrer">https://www.gnu.org/software/emacs/manual/html_node/emacs/Editing-Binary-Files.html</a>

blocks|key|1402808|text|Hexyl格式很好:+sudo+apt+install+hexyl|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1402809|​|1402810|📷|atomic|offset|length|1402811|1402812|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/398285aa0fe3d14d941d1caf2de05166.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@$G|V|H|W|1|X]]|A|$]]|$1|I|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q|R|-4]]]]

Hexyl formats nicely: sudo apt install hexyl
<a href="https://i.stack.imgur.com/NmUIF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NmUIF.png" alt="enter image description here" /></a>

blocks|key|1187365|text|要将文件转换为它的二进制代码(十六进制表示)，我们说：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1187366|xxd+filename+++++++++++++++++++++++++++++++++++++++++#|code-block|syntax|javascript|1187367|例如：|1187368|xxd+hello.c++++++++++++++++++++++++++++++++++++++++++#|1187369|要查看二进制文件中的所有内容和代码，我们可以使用readelf和objdump、hexdump等命令。|offset|length|style|CODE|1187370|例如，如果我们想要看到转换一个二进制文件(可执行文件、共享库、目标文件)的所有内容，我们说：|1187371|hexdump+binaryfilename|1187372|1187373|hexdump+/bin/bash|1187374|但是readelf是分析elf(可执行文件和链接格式)文件的最佳工具。因此，如果我们说：|1187375|readelf+-a+/bin/bash|1187376|二进制文件bash中的所有内容都将显示给我们，我们也可以为readelf提供不同的标志，以分别查看elf文件的所有节和头，例如，如果我们只想看到elf头，我们说：|1187377|readelf+-h+/bin/bash|1187378|用于读取文件的所有段：|1187379|readelf+-l+/bin/bash|1187380|用于读取文件的所有部分：|1187381|readelf+-S+/bin/sh|1187382|但作为总结，在linux中读取路径/bin/bash中的"hello.c“这样的普通文件和bash这样的二进制文件时，我们会说：|1187383|xxd+hello.c

readelf+-a+/bin/bash|1187384|entityMap^0|0|0|0|0|O|7|W|7|14|7|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1J|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1K|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|1L|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|1M|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|1N|8|@$M|1O|N|1P|O|P]|$M|1Q|N|1R|O|P]|$M|1S|N|1T|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1U|8|@]|9|@]|A|$]]|$1|S|3|T|5|D|7|1V|8|@]|9|@]|A|$E|F]]|$1|U|3|H|5|6|7|1W|8|@]|9|@]|A|$]]|$1|V|3|W|5|D|7|1X|8|@]|9|@]|A|$E|F]]|$1|X|3|Y|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|Z|3|10|5|D|7|1Z|8|@]|9|@]|A|$E|F]]|$1|11|3|12|5|6|7|20|8|@]|9|@]|A|$]]|$1|13|3|14|5|D|7|21|8|@]|9|@]|A|$E|F]]|$1|15|3|16|5|6|7|22|8|@]|9|@]|A|$]]|$1|17|3|18|5|D|7|23|8|@]|9|@]|A|$E|F]]|$1|19|3|1A|5|6|7|24|8|@]|9|@]|A|$]]|$1|1B|3|1C|5|D|7|25|8|@]|9|@]|A|$E|F]]|$1|1D|3|1E|5|6|7|26|8|@]|9|@]|A|$]]|$1|1F|3|1G|5|D|7|27|8|@]|9|@]|A|$E|F]]|$1|1H|3|-4|5|6|7|28|8|@]|9|@]|A|$]]]|1I|$]]

to convert a file to its binary codes(hexadecimal representation) we say:
<pre><code>xxd filename #
</code></pre>
e.g:
<pre><code>xxd hello.c #
</code></pre>
to see all the contents and codes in a binary file , we could use commands like <code>readelf</code> and <code>objdump</code>, <code>hexdump</code> ,... .
for example if we want to see all the convert all the contents of a binary file(executable, shared libraries, object files) we say:
<pre><code>hexdump binaryfilename
</code></pre>
e.g.
<pre><code>hexdump /bin/bash
</code></pre>
but readelf is the best utility for analyzing elf(executable and linking format) files. so if we say:
<pre><code>readelf -a /bin/bash
</code></pre>
all the contents in the binary file bash would be shown to us, also we could provide different flags for readelf to see all the sections and headers of an elf file separately, for example if we want to see only the elf header we say:
<pre><code>readelf -h /bin/bash
</code></pre>
for reading all the segments of the file:
<pre><code>readelf -l /bin/bash
</code></pre>
for reading all the sections of the file:
<pre><code>readelf -S /bin/sh
</code></pre>
but again as summary , for reading a normal file like &quot;hello.c&quot; and a binary file like bash in path /bin/bash in linux we say:
<pre><code>xxd hello.c

readelf -a /bin/bash
</code></pre>

blocks|key|1402859|text|要在一行中以十六进制格式获得所有输出：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1402860|xxd+-p+yourfile.bin+%7C+tr+-d+'\n'|code-block|syntax|javascript|1402861|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

To get the output all in a single line in Hexadecimal:
<pre><code>xxd -p yourfile.bin | tr -d '\n'
</code></pre>

blocks|key|1402417|text|您可以使用十六进制转储二进制文件|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1402418|sudo+apt-get+install+hexdump

hexdump+-C+yourfile.bin|code-block|syntax|javascript|1402419|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can use hexdump binary file

<pre><code>sudo apt-get install hexdump

hexdump -C yourfile.bin
</code></pre>

I would like to view the contents of a file in the current directory, but in binary from the command line. How can I achieve this?

How to view files in binary from bash?

CentOS

我想从命令行查看当前目录中的二进制文件的内容。我如何才能做到这一点？

问如何在bash中查看二进制文件？
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