FTP 200 Command OK vs 501 Syntax Error in Arguments
FTP 200 (Command OK) is a 2xx Positive Completion response, while 501 (Syntax Error in Arguments) is a 5xx Permanent Negative response. 200 indicates that the command has been successfully executed. This is a general acknowledgment that the command was understood and carried out. In contrast, 501 means that syntax error in parameters or arguments. The command was recognized but its arguments are invalid or malformed.
الوصف
The command has been successfully executed. This is a general acknowledgment that the command was understood and carried out.
متى تراه
After issuing any command that completes successfully, such as TYPE, MODE, or NOOP.
كيفية الإصلاح
No fix needed — the command succeeded. This is the standard positive response for commands that don't return data.
الوصف
Syntax error in parameters or arguments. The command was recognized but its arguments are invalid or malformed.
متى تراه
When you use a valid command but with wrong parameters, such as an invalid path format or incorrect argument count.
كيفية الإصلاح
Review the command's required argument format. Common issues include missing quotes around paths with spaces or invalid character encoding.
الفروق الرئيسية
200 is a 2xx Positive Completion response, while 501 is a 5xx Permanent Negative response.
FTP 200: The command has been successfully executed. This is a general acknowledgment that the command was understood and carried out.
FTP 501: Syntax error in parameters or arguments. The command was recognized but its arguments are invalid or malformed.
You encounter 200 when after issuing any command that completes successfully, such as TYPE, MODE, or NOOP.
You encounter 501 when when you use a valid command but with wrong parameters, such as an invalid path format or incorrect argument count.
متى تستخدم أيًا منهما
For 200 (Command OK): No fix needed — the command succeeded. This is the standard positive response for commands that don't return data. For 501 (Syntax Error in Arguments): Review the command's required argument format. Common issues include missing quotes around paths with spaces or invalid character encoding.