[Linux] C Shell (csh) iconv 用法: Convert character encoding

Overview

The iconv command is a utility that converts text from one character encoding to another. It is particularly useful when dealing with files that may not be in the desired encoding format, allowing users to ensure compatibility across different systems and applications.

Usage

The basic syntax of the iconv command is as follows:

iconv [options] [arguments]

Common Options

• -f, --from-code=CODE: Specifies the encoding of the input text.
• -t, --to-code=CODE: Specifies the encoding for the output text.
• -o, --output=FILE: Redirects the output to a specified file instead of standard output.
• -l, --list: Lists all available encodings.

Common Examples

Here are some practical examples of using the iconv command:

1. Convert a file from UTF-8 to ISO-8859-1:

   iconv -f UTF-8 -t ISO-8859-1 input.txt -o output.txt
   

2. Convert a file and display the output in the terminal:

   iconv -f UTF-8 -t UTF-16 input.txt
   

3. List all available encodings:

   iconv -l
   

4. Convert a string from Windows-1252 to UTF-8:

   echo "Hello, World!" | iconv -f WINDOWS-1252 -t UTF-8
   

Tips

• Always check the encoding of your input file before conversion to avoid data loss or corruption.
• Use the -o option to save the converted output to a file, especially for large files.
• If you’re unsure about the encoding, use the -l option to list available encodings and find the correct one.