iconv converts the encoding format of the file

1. Command function

The encoding format used by icnov to convert files

There is no icnov file in linux by default, you need to install http://www.gnu.org/software/libiconv/ .

(1) Download libiconv package

[root@localhost ~]# wget https://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.15.tar.gz

(2) Compile the source code

[root@localhost ~]# tar zxf libiconv-1.15.tar.gz #Unzip

[root@localhost ~]# cd libiconv-1.15

[root@localhost libiconv-1.15]# ./configure --prefix=/usr/local

[root@localhost libiconv-1.15]# make && make install

......

make[1]: Leaving directory `/root/libiconv-1.15/man'

Compilation is complete, the command can be used normally

2. Grammar format

iconv  [OPTION...]  [-f encoding]  [-t encoding]  [inputfile ...]

iconv options source encoding new encoding input file

Parameter Description

parameter	Parameter Description
-f encoding-A	Convert from code A
-t encoding-B	Convert to code B
-1	Display system supported encodings
-O	input output to the specified file

3. Example of use

Windows-encoded files are uploaded to Linux, and the contents of the files cannot be displayed through the cat command.

[root@localhost ~]# cat windows_gb2312.txt

ӭlinux world.

Check file encoding

Method 1 file filename

[root@localhost ~]# file windows.txt

windows.txt: ISO-8859 text, with no line terminators

Method 2 Enter in vim filname: set

[root@localhost ~]# vim windows.txt #Open Chinese garbled characters

:set fileencoding

ÄãºÃ£¬»¶Ó´µ½linux world.

~                                                         

::set fileencoding  

output:

fileencoding = latin1

ps: latin1 is an alias for ISO-8859-1.

ISO-8859-1 encoding is a single-byte encoding, backward compatible with ASCII.