z/VM: TCP/IP User's Guide - z/VM - IBM

FTP Subcommands
Table 3. FTP Subcommands (continued)
SubcommandMinimum Description
Abbreviation
STRUCT STR Sets the file transfer
structure.
SUNIQUE SU Toggles the storage
methods.
SYSTEM SY Displays the name of the
foreign host’s operating
system.
TCHINESE TC Sets the transfer type to 73
TCHINESE.
TYPE TY Specifies the transfer type. 74
USER U Identifies you to a foreign
host. LOGIN is a synonym
for USER.
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Continuing Subcommand Input Strings
Due to system limitations, FTP subcommand input lines are restricted to 130
characters; subcommand text that is present after 130 characters is ignored. When
FTP subcommands are supplied, a continuation operator — a plus sign (+)
preceded by a single blank — can be used to continue a string on a subsequent
input line. The plus sign and its preceding blank will not be present in the
resulting final string; thus, any blanks necessary to delimit multiple tokens for
certain FTP subcommands must be explicitly provided as part of the input string(s)
that are continued. Delimiting blanks can be included either before the ″ +″
continuation operator, or at the beginning of the next line of continued text. Note
that multiple blanks are not significant (that is, are not preserved). The limit for the
subcommand input stream continued in this fashion is 200 bytes.
Example of Line Continuation
Suppose the current working directory on the foreign host is:
GPLSRV2:DOC.LIBRARY.PROJECTX
The following MKDIR subcommand is then issued, using two lines:
mkdir gplsrv2:doc.library.projectx. +
worlfiles
The foreign host replies with:
>>>MKD gplsrv2:doc.library.projectx.worlfiles
257 New directory GPLSRV2:DOC.LIBRARY.PROJECTX.WORLFILES has
been created.
After creating several other directories, you realize the worlfiles directory should
be workfiles. To correct this, you issue an RMDIR command of the form:
rmdir +
with the remainder of the command completed by retrieving and using previously
entered commands:
gplsrv2:doc.library.projectx. +
worlfiles
The foreign host replies with:
Chapter 2. Transferring Files Using FTP 29