When the last command issued was READ, display the previous message, message part, or message page. When the last command issued was DIRECTORY, display the preceding screen of the directory listing.

Syntax

BACK

Qualifiers	Defaults
/EDIT	/NOEDIT
/FILTER_CTRL	/NOFILTER_CTRL
/MESSAGE	/MESSAGE
/PAGE	/MESSAGE
/PART	/MESSAGE
/PAUSE	/PAUSE
/TRIM_HEADER	/TRIM_HEADER

Parameters

None.

Description

While in message reading mode, the BACK command displays the previous message, /MESSAGE, the previous part of a multipart message, /PART, or the previous page of the current message, /PAGE.

While in directory listing mode, the BACK command displays the preceding screen of the directory listing.

Qualifiers

/ENTIRE

/MESSAGE (default)

/PAGE

/PART

Display the previous message, /MESSAGE or /ENTIRE, the previous part of a multipart message, /PART, or the previous page (screen) of the current message, /PAGE. The /PAGE qualifier is treated as /PART when the editor is invoked to display the message. When the current message is a single-part message, the commands BACK/PART and BACK/MESSAGE are equivalent.

/EDIT

/NOEDIT (default)

When /EDIT is specified, the editor will be invoked to display the message or directory listing. In the case of a message display, this is the default when PMDF MAIL is invoked with the command PMDF MAIL/EDIT=(READ). /NOEDIT prevents the editor from being invoked.

/FILTER_CTRL

/NOFILTER_CTRL (default)

When /FILTER_CTRL is specified, 7-bit and 8-bit control characters in messages are filtered out. Messages which contain such control characters can cause problems with the terminal when they are displayed. When /FILTER_CTRL is specified, such a character is displayed as its hexidecimal value in the format "=XX".

/PAUSE (default)

/NOPAUSE

When displaying the message, after a page of information has been output PMDF MAIL pauses and requests that you press [RETURN] if you want to continue reading. To supress these prompts, specify /NOPAUSE.

/TRIM_HEADER (default)

/NOTRIM_HEADER

When /NOTRIM_HEADER is specified, all header lines in the message will appear when the message's header is next displayed. (Note: when you specify /PART or /PAGE, it might take several BACK commands to read back to the message's header.) By default, message header lines are trimmed; this behavior is explicitly requested with the /TRIM_HEADER qualifier.