From 18b33f16567c72182d8018b08161dcb27f47d69b Mon Sep 17 00:00:00 2001 From: jbranchaud Date: Sat, 3 Oct 2015 09:28:59 -0500 Subject: [PATCH] Add Hexdump A Compiled File as a zsh til. --- README.md | 1 + zsh/hexdump-a-compiled-file.md | 40 ++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+) create mode 100644 zsh/hexdump-a-compiled-file.md diff --git a/README.md b/README.md index eb37edb..13c2683 100644 --- a/README.md +++ b/README.md @@ -234,6 +234,7 @@ smart people at [Hashrocket](http://hashrocket.com/). - [Do Not Overwrite Existing Files](zsh/do-not-overwrite-existing-files.md) - [Find Newer Files](zsh/find-newer-files.md) - [Global Substitution On The Previous Command](zsh/global-substitution-on-the-previous-command.md) +- [Hexdump A Compiled File](zsh/hexdump-a-compiled-file.md) - [Killing A Frozen SSH Session](zsh/killing-a-frozen-ssh-session.md) - [List All The Say Voices](zsh/list-all-the-say-voices.md) - [Only Show The Matches](zsh/only-show-the-matches.md) diff --git a/zsh/hexdump-a-compiled-file.md b/zsh/hexdump-a-compiled-file.md new file mode 100644 index 0000000..8ed5602 --- /dev/null +++ b/zsh/hexdump-a-compiled-file.md @@ -0,0 +1,40 @@ +# Hexdump A Compiled File + +The `hexdump` unix utility allows you to dump the contents of a +compiled/executable file in a _readable_ hexadecimal format. Adding the `-C` +flag includes a sidebar with a formatted version of that row of hexadecimal. + +For example, a compiled _Hello World_ java program, `Hello.java`, will look +something like this: + +``` +> cat Hello.class | hexdump -C +00000000 ca fe ba be 00 00 00 34 00 1d 0a 00 06 00 0f 09 |.......4........| +00000010 00 10 00 11 08 00 12 0a 00 13 00 14 07 00 15 07 |................| +00000020 00 16 01 00 06 3c 69 6e 69 74 3e 01 00 03 28 29 |........()| +00000030 56 01 00 04 43 6f 64 65 01 00 0f 4c 69 6e 65 4e |V...Code...LineN| +00000040 75 6d 62 65 72 54 61 62 6c 65 01 00 04 6d 61 69 |umberTable...mai| +00000050 6e 01 00 16 28 5b 4c 6a 61 76 61 2f 6c 61 6e 67 |n...([Ljava/lang| +00000060 2f 53 74 72 69 6e 67 3b 29 56 01 00 0a 53 6f 75 |/String;)V...Sou| +00000070 72 63 65 46 69 6c 65 01 00 0a 48 65 6c 6c 6f 2e |rceFile...Hello.| +00000080 6a 61 76 61 0c 00 07 00 08 07 00 17 0c 00 18 00 |java............| +00000090 19 01 00 0d 48 65 6c 6c 6f 2c 20 57 6f 72 6c 64 |....Hello, World| +000000a0 21 07 00 1a 0c 00 1b 00 1c 01 00 05 48 65 6c 6c |!...........Hell| +000000b0 6f 01 00 10 6a 61 76 61 2f 6c 61 6e 67 2f 4f 62 |o...java/lang/Ob| +000000c0 6a 65 63 74 01 00 10 6a 61 76 61 2f 6c 61 6e 67 |ject...java/lang| +000000d0 2f 53 79 73 74 65 6d 01 00 03 6f 75 74 01 00 15 |/System...out...| +000000e0 4c 6a 61 76 61 2f 69 6f 2f 50 72 69 6e 74 53 74 |Ljava/io/PrintSt| +000000f0 72 65 61 6d 3b 01 00 13 6a 61 76 61 2f 69 6f 2f |ream;...java/io/| +00000100 50 72 69 6e 74 53 74 72 65 61 6d 01 00 07 70 72 |PrintStream...pr| +00000110 69 6e 74 6c 6e 01 00 15 28 4c 6a 61 76 61 2f 6c |intln...(Ljava/l| +00000120 61 6e 67 2f 53 74 72 69 6e 67 3b 29 56 00 20 00 |ang/String;)V. .| +00000130 05 00 06 00 00 00 00 00 02 00 00 00 07 00 08 00 |................| +00000140 01 00 09 00 00 00 1d 00 01 00 01 00 00 00 05 2a |...............*| +00000150 b7 00 01 b1 00 00 00 01 00 0a 00 00 00 06 00 01 |................| +00000160 00 00 00 01 00 09 00 0b 00 0c 00 01 00 09 00 00 |................| +00000170 00 25 00 02 00 01 00 00 00 09 b2 00 02 12 03 b6 |.%..............| +00000180 00 04 b1 00 00 00 01 00 0a 00 00 00 0a 00 02 00 |................| +00000190 00 00 03 00 08 00 04 00 01 00 0d 00 00 00 02 00 |................| +000001a0 0e |.| +000001a1 +```