如题有些下载的文本的编码格式很奇怪。通过file命令看到：

Non-ISO extended-ASCII text, with very long lines, with CRLF line terminators

假如作者搞了个奇奇怪怪的编码格式，你都不知道。通过一个脚本来发现它：

#!/bin/bash

iconv --list | sed 's/\/\/$//' | sort > encodings.list

for a in `cat encodings.list`; do

printf "$a "

iconv -f $a -t UTF-8 systeminfo.txt > /dev/null 2>&1 \

&& echo "ok: $a" || echo "fail: $a"

done | tee result.txt

查看result。txt，关注GB开头的就可以了：

文本乱码编码处理

iconv -f GB18030 -t UTF-8 systeminfo.txt > 2222.txt

# file 2222.txt

2222.txt: UTF-8 Unicode text, with very long lines, with CRLF line terminators