Bash 显示文件的十六进制数
我想构建一个bash程序，它可以像“hex”编辑器一样读取文件，比如*.bin并打印所有十六进制数。我可以从哪里开始？使用od命令，od-t x1 filename您可以使用od。“od-x文件”为什么要重新发明这个轮子？如果你有hextump，你也可以使用它 od -t x1 filenameBash 显示文件的十六进制数,bash,file-io,hex,Bash,File Io,Hex,我想构建一个bash程序，它可以像“hex”编辑器一样读取文件，比如*.bin并打印所有十六进制数。我可以从哪里开始？使用od命令，od-t x1 filename您可以使用od。“od-x文件”为什么要重新发明这个轮子？如果你有hextump，你也可以使用它 od -t x1 filename hexdump -x /usr/bin/binaryfile 编辑：添加了“ByTestStream”功能。如果脚本名称包含单词“stream”（例如，它是一个符号链接，例如ln-s bash he
hexdump -x /usr/bin/binaryfile
编辑：添加了“ByTestStream”功能。如果脚本名称包含单词“stream”（例如，它是一个符号链接，例如
ln-s bash hextump bash hextump stream/bash hextump streamhextump-C#!/bin/bash
# bash-hexdump
# by Dennis Williamson - 2010-01-04
# in response to http://stackoverflow.com/questions/2003803/show-hexadecimal-numbers-of-a-file
# usage: bash-hexdump file
if [[ -z "$1" ]]
then
exec 3<&0 # read stdin
[[ -p /dev/stdin ]] || tty="yes" # no pipe
else
exec 3<"$1" # read file
fi
# if the script name contains "stream" then output will be continuous hex digits
# like hexdump -ve '1/1 "%.2x"'
[[ $0 =~ stream ]] && nostream=false || nostream=true
saveIFS="$IFS"
IFS="" # disables interpretation of \t, \n and space
saveLANG="$LANG"
LANG=C # allows characters > 0x7F
bytecount=0
valcount=0
$nostream && printf "%08x " $bytecount
while read -s -u 3 -d '' -r -n 1 char # -d '' allows newlines, -r allows \
do
((bytecount++))
printf -v val "%02x" "'$char" # see below for the ' trick
[[ "$tty" == "yes" && "$val" == "04" ]] && break # exit on ^D
echo -n "$val"
$nostream && echo -n " "
((valcount++))
if [[ "$val" < 20 || "$val" > 7e ]]
then
string+="." # show unprintable characters as a dot
else
string+=$char
fi
if $nostream && (( bytecount % 8 == 0 )) # add a space down the middle
then
echo -n " "
fi
if (( bytecount % 16 == 0 )) # print 16 values per line
then
$nostream && echo "|$string|"
string=''
valcount=0
$nostream && printf "%08x " $bytecount
fi
done
if [[ "$string" != "" ]] # if the last line wasn't full, pad it out
then
length=${#string}
if (( length > 7 ))
then
((length--))
fi
(( length += (16 - valcount) * 3 + 4))
$nostream && printf "%${length}s\n" "|$string|"
$nostream && printf "%08x " $bytecount
fi
$nostream && echo
LANG="$saveLANG";
IFS="$saveIFS"
od找出哪个ododhextump-Chd