3com MSR 20-20 참조 매뉴얼

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F
ILE
 S
YSTEM
 C
ONFIGURATION
 
C
OMMANDS
n
A file name cannot be longer than 64 characters (including drive letter and a 
string terminator. If the drive letter is “CF: /”, the file name can be at most 
[ 64-1-4 ] = 59 characters in length; or, errors will occur in file operation. 
Typically, the file name is recommended to be not more than 16 characters.
A file name cannot contain ASCII characters (ASCII>=128) or invisible 
characters (ASCII<33).
A filename cannot contain characters such as """, "’", “?”, "", “Space”, “*”, “|”, 
“<““/”, “:”, “>” or “~”.
." can be included in a filename, but it cannot be the first or the last character 
of the filename and there cannot be two consecutive “.”s.
cd
Syntax
cd directory
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Parameter
directory: Name of the target directory.
Description
Use the cd command to change the current directory.
Example
# Change the current directory to cf:.
<Sysname> cd cf: 
# Return to the upper directory.
<Sysname> cd .. 
# Return to the root directory.
<Sysname> cd / 
copy
Syntax
copy fileurl-source fileurl-dest
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