Columbia MM
MM Manual


Several MM commands display general information.


The command daytime by itself gives the current date and time.

The command also accepts a date and time. It will display the day of the week and will convert the time from 24-hour clock and/or other zones into local time. There are numerous variations in acceptable notation: June 18 1992; June 18, 1992; 18 June 1992; 18-jun-92; 6/18/1992; 6/18/92.

Time cannot be given without a date. The time feature may help when you are sending or reading mail from distant points. GMT, seen on some messages, is Greenwich Mean Time, the world standard.

Thursday, 18 June 1992 3:09PM
MM>daytime 18-jun-92 1604CST
Local time: Thursday, 18 June 1992 5:04PM
MM>daytime Jun 18 1992 5:00PM GMT
Local time: Thursday, 18 June 1992 12:00PM

At the UNIX shell prompt the similar command is date. If you are working in Emacs, the command M-x display-time will put a running time display on screen.

To see a calendar, use the UNIX shell command cal with the year desired. From an MM prompt, use !cal, like !cal 1992. It also takes a numeric month: !cal 9 1992. Please notice that the year 92 is in the first century and is probably not what you want.


The command status shows some information about your current MM proces. The command status verbose gives a little more information than just status. It typically looks something like this:

MM>status verbose
 File /f/u1/d09200/jb51/mbox (mbox, modified)
 87 messages, 71 old, 15 deleted, 0 unseen, 125k Bytes
 Currently at message 87
 User: Joseph Brennan <>
 Process ID = 5446, User ID = 4530

The File is the current mail file, showing the absolute directory path from root. The notation mbox, modified means the file format is mbox and that the file has been modified since it was last saved. The next line shows counts of total messages, messages considered old (already there when the MM process started), messages marked for deletion, and messages marked unseen, and then the size of the mail file. The line showing the current message is the last line unless you use verbose. The next line confirms who you are (to the system) and the last line has the MM process id (pid) and your userid (uid).

The command version shows what version of MM is running.

Columbia MM, version 0.90.2(14)
Copyright (c) 1986, 1990
        The Trustees of Columbia University in the City of New York
Compiled by on 4 Jan 91 5:24pm
Report bugs to bug-mm

The MM command pwd shows the current working directory of the MM process. That is the directory MM will use for the commands list and take, for mail addressed to a file by fcc, for addresses read from a file with @filename or @@filename, and for a file inserted into a message with control-b.

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