〖Linux〗使用sed命令修改小端(little endian)存储的数据

 #!/bin/bash -

 #===============================================================================

 #

 #          FILE: hex_change.sh

 #

 #         USAGE: ./hex_change.sh

 #

 #   DESCRIPTION:

 #

 #       OPTIONS: ---

 #  REQUIREMENTS: ---

 #          BUGS: ---

 #         NOTES: ---

 #        AUTHOR: linkscue (scue), linkscue@gmail.com

 #  ORGANIZATION:

 #       CREATED: 2014年08月07日 00时05分55秒 CST

 #      REVISION:  ---

 #===============================================================================

 # hex_change 修改二进制文件

 # 语法：hex_change 00ABCDEF 00ABCDEF file

 #       hex_change [0x]00ABCDEF [0x]00ABCDEF file

 hex_change(){

     local hex=${#0x}

     local hexnew=${#0x}

     local bin=$

     hex=$(echo $hex|tr a-z A-Z)                 # 小写转大写

     hexnew=$(echo $hexnew|tr a-z A-Z)           # 小写转大写

     echo "convert hex: 0x$hex 0x$hexnew"

     p1="\x${hex:6:2}"

     p2="\x${hex:4:2}"

     p3="\x${hex:2:2}"

     p4="\x${hex:0:2}"

     pn1="\x${hexnew:6:2}"

     pn2="\x${hexnew:4:2}"

     pn3="\x${hexnew:2:2}"

     pn4="\x${hexnew:0:2}"

     echo sed -i "s/$p1$p2$p3$p4/$pn1$pn2$pn3$pn4/g" $bin

     sed -i "s/$p1$p2$p3$p4/$pn1$pn2$pn3$pn4/g" $bin

 }

 hex_change ABCDEF55 DDCCBBAA ./.bin