〖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=${1#0x}
    local hexnew=${2#0x}
    local bin=$3
    hex=$(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 ./1.bin