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MAIL(1)                   BSD General Commands Manual                  MAIL(1)

NAME
     mail, mailx -- send and receive mail

SYNOPSIS
     mail [-EiInv] [-s subject] [-c cc-addr] [-b bcc-addr] [-F] to-addr ... [-sendmail-option ...]
     mail [-EHiInNv] [-F] -f [name]
     mail [-EHiInNv] [-F] [-u user]
     mail -e [-f name]
     mail [-H]

INTRODUCTION
     The mail utility is an intelligent mail processing system, which has a command syntax reminiscent of
     ed(1) with lines replaced by messages.

     The following options are available:

     -v      Verbose mode.  The details of delivery are displayed on the user's terminal.

     -e      Test for the presence of mail in the (by default, system) mailbox.  An exit status of 0 is
             returned if it has mail; otherwise, an exit status of 1 is returned.

     -H      Write a header summary only.

     -E      Do not send messages with an empty body.  This is useful for piping errors from cron(8)
             scripts.

     -i      Ignore tty interrupt signals.  This is particularly useful when using mail on noisy phone
             lines.

     -I      Force mail to run in interactive mode even when input is not a terminal.  In particular, the
             `~' special character when sending mail is only active in interactive mode.

     -n      Inhibit reading the system-wide mail.rc files upon startup.

     -N      Inhibit the initial display of message headers when reading mail or editing a mail folder.

     -s subject
             Specify subject on command line.  (Only the first argument after the -s flag is used as a sub-ject; subject;
             ject; be careful to quote subjects containing spaces.)

     -c cc-addr
             Send carbon copies to cc-addr list of users.  The cc-addr argument should be a comma-separated
             list of names.

     -b bcc-addr
             Send blind carbon copies to bcc-addr list of users.  The bcc-addr argument should be a comma-separated commaseparated
             separated list of names.

     -f [mbox]
             Read in the contents of your mbox (or the specified file) for processing; when you quit, mail
             writes undeleted messages back to this file.

     -F      Record the message in a file named after the first recipient.  The name is the login-name por-tion portion
             tion of the address found first on the ``To:'' line in the mail header.  Overrides the record
             variable, if set.

     -u      Is equivalent to:

                   mail -f /var/mail/user

   Startup Actions
     At startup time mail will execute commands in the system command files /usr/share/misc/mail.rc,
     /usr/local/etc/mail.rc and /etc/mail.rc in order, unless explicitly told not to by the use of the -n
     option.  Next, the commands in the user's personal command file ~/.mailrc are executed.  The mail util-ity utility
     ity then examines its command line options to determine whether a new message is to be sent, or whether
     an existing mailbox is to be read.

   Sending Mail
     To send a message to one or more people, mail can be invoked with arguments which are the names of peo-ple people
     ple to whom the mail will be sent.  You are then expected to type in your message, followed by a
     <control-D> at the beginning of a line.  The section below Replying To or Originating Mail, describes
     some features of mail available to help you compose your letter.

   Reading Mail
     In normal usage mail is given no arguments and checks your mail out of the post office, then prints out
     a one line header of each message found.  The current message is initially the first message (numbered
     1) and can be printed using the print command (which can be abbreviated p).  You can move among the
     messages much as you move between lines in ed(1), with the commands + and - moving backwards and for-wards, forwards,
     wards, and simple numbers.

   Disposing of Mail
     After examining a message you can delete (d) the message or reply (r) to it.  Deletion causes the mail
     program to forget about the message.  This is not irreversible; the message can be undeleted (u) by
     giving its number, or the mail session can be aborted by giving the exit (x) command.  Deleted messages
     will, however, usually disappear never to be seen again.

   Specifying Messages
     Commands such as print and delete can be given a list of message numbers as arguments to apply to a
     number of messages at once.  Thus ``delete 1 2'' deletes messages 1 and 2, while ``delete 1-5'' deletes
     messages 1 through 5.  The special name `*' addresses all messages, and `$' addresses the last message;
     thus the command top which prints the first few lines of a message could be used in ``top *'' to print
     the first few lines of all messages.

   Replying To or Originating Mail
     You can use the reply command to set up a response to a message, sending it back to the person who it
     was from.  Text you then type in, up to an end-of-file, defines the contents of the message.  While you
     are composing a message, mail treats lines beginning with the character `~' specially.  For instance,
     typing ~m (alone on a line) will place a copy of the current message into the response right shifting
     it by a tabstop (see indentprefix variable, below).  Other escapes will set up subject fields, add and
     delete recipients to the message and allow you to escape to an editor to revise the message or to a
     shell to run some commands.  (These options are given in the summary below.)

   Ending a Mail Processing Session
     You can end a mail session with the quit (q) command.  Messages which have been examined go to your
     mbox file unless they have been deleted in which case they are discarded.  Unexamined messages go back
     to the post office.  (See the -f option above).

   Personal and System Wide Distribution Lists
     It is also possible to create a personal distribution lists so that, for instance, you can send mail to
     ``cohorts'' and have it go to a group of people.  Such lists can be defined by placing a line like

           alias cohorts bill ozalp jkf mark kridle@ucbcory

     in the file .mailrc in your home directory.  The current list of such aliases can be displayed with the
     alias command in mail.  System wide distribution lists can be created by editing /etc/mail/aliases, see
     aliases(5) and sendmail(8); these are kept in a different syntax.  In mail you send, personal aliases
     will be expanded in mail sent to others so that they will be able to reply to the recipients.  System
     wide aliases are not expanded when the mail is sent, but any reply returned to the machine will have
     the system wide alias expanded as all mail goes through sendmail(8).

   Network Mail (ARPA, UUCP, Berknet)
     See mailaddr(7) for a description of network addresses.

     The mail utility has a number of options which can be set in the .mailrc file to alter its behavior;
     thus ``set askcc'' enables the askcc feature.  (These options are summarized below.)

SUMMARY
     (Adapted from the Mail Reference Manual.)

     Each command is typed on a line by itself, and may take arguments following the command word.  The com-mand command
     mand need not be typed in its entirety -- the first command which matches the typed prefix is used.
     For commands which take message lists as arguments, if no message list is given, then the next message
     forward which satisfies the command's requirements is used.  If there are no messages forward of the
     current message, the search proceeds backwards, and if there are no good messages at all, mail types
     ``No applicable messages'' and aborts the command.

     -       Print out the preceding message.  If given a numeric argument n, goes to the n'th previous mes-sage message
             sage and prints it.

     #       ignore the remainder of the line as a comment.

     ?       Prints a brief summary of commands.

     !       Executes the shell (see sh(1) and csh(1)) command which follows.

     Print   (P) Like print but also prints out ignored header fields.  See also print, ignore and retain.

     Reply   (R) Reply to originator.  Does not reply to other recipients of the original message.

     Type    (T) Identical to the Print command.

     alias   (a) With no arguments, prints out all currently-defined aliases.  With one argument, prints out
             that alias.  With more than one argument, creates a new alias or changes an old one.

     alternates
             (alt) The alternates command is useful if you have accounts on several machines.  It can be
             used to inform mail that the listed addresses are really you.  When you reply to messages, mail
             will not send a copy of the message to any of the addresses listed on the alternates list.  If
             the alternates command is given with no argument, the current set of alternative names is dis-played. displayed.
             played.

     chdir   (c) Changes the user's working directory to that specified, if given.  If no directory is
             given, then changes to the user's login directory.

     copy    (co) The copy command does the same thing that save does, except that it does not mark the mes-sages messages
             sages it is used on for deletion when you quit.

     delete  (d) Takes a list of messages as argument and marks them all as deleted.  Deleted messages will
             not be saved in mbox, nor will they be available for most other commands.

     dp      (also dt) Deletes the current message and prints the next message.  If there is no next mes-sage, message,
             sage, mail says ``at EOF''.

     edit    (e) Takes a list of messages and points the text editor at each one in turn.  On return from
             the editor, the message is read back in.

     exit    (ex or x) Effects an immediate return to the shell without modifying the user's system mailbox,
             his mbox file, or his edit file in -f.

     file    (fi) The same as folder.

     folders
             List the names of the folders in your folder directory.

     folder  (fo) The folder command switches to a new mail file or folder.  With no arguments, it tells you
             which file you are currently reading.  If you give it an argument, it will write out changes
             (such as deletions) you have made in the current file and read in the new file.  Some special
             conventions are recognized for the name.  `#' means the previous file, `%' means your system
             mailbox, ``%user'' means user's system mailbox, `&' means your mbox file, and ``+folder'' means
             a file in your folder directory.

     from    (f) Takes a list of messages and prints their message headers.

     headers
             (h) Lists the current range of headers, which is an 18-message group.  If a `+' argument is
             given, then the next 18-message group is printed, and if a `-' argument is given, the previous
             18-message group is printed.

     help    A synonym for ?.

     hold    (ho, also preserve) Takes a message list and marks each message therein to be saved in the
             user's system mailbox instead of in mbox.  Does not override the delete command.

     ignore  Add the list of header fields named to the ignored list.  Header fields in the ignore list are
             not printed on your terminal when you print a message.  This command is very handy for suppres-sion suppression
             sion of certain machine-generated header fields.  The Type and Print commands can be used to
             print a message in its entirety, including ignored fields.  If ignore is executed with no argu-ments, arguments,
             ments, it lists the current set of ignored fields.

     inc     Incorporate any new messages that have arrived while mail is being read.  The new messages are
             added to the end of the message list, and the current message is reset to be the first new mail
             message.  This does not renumber the existing message list, nor does it cause any changes made
             so far to be saved.

     mail    (m) Takes as argument login names and distribution group names and sends mail to those people.

     mbox    Indicate that a list of messages be sent to mbox in your home directory when you quit.  This is
             the default action for messages if you do not have the hold option set.

     more    (mo) Takes a list of messages and invokes the pager on that list.

     next    (n, like + or CR) Goes to the next message in sequence and types it.  With an argument list,
             types the next matching message.

     preserve
             (pre) A synonym for hold.

     print   (p) Takes a message list and types out each message on the user's terminal.

     quit    (q) Terminates the session, saving all undeleted, unsaved messages in the user's mbox file in
             his login directory, preserving all messages marked with hold or preserve or never referenced
             in his system mailbox, and removing all other messages from his system mailbox.  If new mail
             has arrived during the session, the message ``You have new mail'' is given.  If given while
             editing a mailbox file with the -f flag, then the edit file is rewritten.  A return to the
             shell is effected, unless the rewrite of edit file fails, in which case the user can escape
             with the exit command.

     reply   (r) Takes a message list and sends mail to the sender and all recipients of the specified mes-sage. message.
             sage.  The default message must not be deleted.

     respond
             A synonym for reply.

     retain  Add the list of header fields named to the retained list.  Only the header fields in the
             retained list are shown on your terminal when you print a message.  All other header fields are
             suppressed.  The type and print commands can be used to print a message in its entirety.  If
             retain is executed with no arguments, it lists the current set of retained fields.

     save    (s) Takes a message list and a filename and appends each message in turn to the end of the
             file.  The filename in quotes, followed by the line count and character count is echoed on the
             user's terminal.

     set     (se) With no arguments, prints all variable values.  Otherwise, sets option.  Arguments are of
             the form option=value (no space before or after `=') or option.  Quotation marks may be placed
             around any part of the assignment statement to quote blanks or tabs, i.e. ``set
             indentprefix="->"''

     saveignore
             Saveignore is to save what ignore is to print and type.  Header fields thus marked are filtered
             out when saving a message by save or when automatically saving to mbox.

     saveretain
             Saveretain is to save what retain is to print and type.  Header fields thus marked are the only
             ones saved with a message when saving by save or when automatically saving to mbox.  Saveretain
             overrides saveignore.

     shell   (sh) Invokes an interactive version of the shell.

     size    Takes a message list and prints out the size in characters of each message.

     source  The source command reads commands from a file.

     top     Takes a message list and prints the top few lines of each.  The number of lines printed is con-trolled controlled
             trolled by the variable toplines and defaults to 5.

     type    (t) A synonym for print.

     unalias
             Takes a list of names defined by alias commands and discards the remembered groups of users.
             The group names no longer have any significance.

     undelete
             (u) Takes a message list and marks each message as not being deleted.

     unread  (U) Takes a message list and marks each message as not having been read.

     unset   Takes a list of option names and discards their remembered values; the inverse of set.

     visual  (v) Takes a message list and invokes the display editor on each message.

     write   (w) Similar to save, except that only the message body (without the header) is saved.
             Extremely useful for such tasks as sending and receiving source program text over the message
             system.

     xit     (x) A synonym for exit.

     z       The mail utility presents message headers in windowfuls as described under the headers command.
             You can move mail's attention forward to the next window with the z command.  Also, you can
             move to the previous window by using z-.

   Tilde/Escapes
     Here is a summary of the tilde escapes, which are used when composing messages to perform special func-tions. functions.
     tions.  Tilde escapes are only recognized at the beginning of lines.  The name ``tilde escape'' is
     somewhat of a misnomer since the actual escape character can be set by the option escape.

     ~a      Inserts the autograph string from the sign= option into the message.

     ~A      Inserts the autograph string from the Sign= option into the message.

     ~b name ...
             Add the given names to the list of carbon copy recipients but do not make the names visible in
             the Cc: line (``blind'' carbon copy).

     ~c name ...
             Add the given names to the list of carbon copy recipients.

     ~d      Read the file dead.letter from your home directory into the message.

     ~e      Invoke the text editor on the message collected so far.  After the editing session is finished,
             you may continue appending text to the message.

     ~f messages
             Read the named messages into the message being sent.  If no messages are specified, read in the
             current message.  Message headers currently being ignored (by the ignore or retain command) are
             not included.

     ~F messages
             Identical to ~f, except all message headers are included.

     ~h      Edit the message header fields by typing each one in turn and allowing the user to append text
             to the end or modify the field by using the current terminal erase and kill characters.

     ~i string
             Inserts the value of the named option into the text of the message.

     ~m messages
             Read the named messages into the message being sent, indented by a tab or by the value of
             indentprefix.  If no messages are specified, read the current message.  Message headers cur-rently currently
             rently being ignored (by the ignore or retain command) are not included.

     ~M messages
             Identical to ~m, except all message headers are included.

     ~p      Print out the message collected so far, prefaced by the message header fields.

     ~q      Abort the message being sent, copying the message to dead.letter in your home directory if save
             is set.

     ~r filename, ~r !command

     ~< filename, ~< !command
             Read the named file into the message.  If the argument begins with a `!', the rest of the
             string is taken as an arbitrary system command and is executed, with the standard output
             inserted into the message.

     ~R string
             Use string as the Reply-To field.

     ~s string
             Cause the named string to become the current subject field.

     ~t name ...
             Add the given names to the direct recipient list.

     ~v      Invoke an alternative editor (defined by the VISUAL environment variable) on the message col-
             lected so far.  Usually, the alternative editor will be a screen editor.  After you quit the
             editor, you may resume appending text to the end of your message.

     ~w filename
             Write the message onto the named file.

     ~x      Exits as with ~q, except the message is not saved in dead.letter.

     ~! command
             Execute the indicated shell command, then return to the message.

     ~| command, ~^ command
             Pipe the message through the command as a filter.  If the command gives no output or terminates
             abnormally, retain the original text of the message.  The command fmt(1) is often used as
             command to rejustify the message.

     ~: mail-command, ~_ mail-command
             Execute the given mail command.  Not all commands, however, are allowed.

     ~.      Simulate end-of-file on input.

     ~?      Print a summary of the available command escapes.

     ~~ string
             Insert the string of text in the message prefaced by a single `~'.  If you have changed the
             escape character, then you should double that character in order to send it.

   Mail Options
     Options can be set with the set command and can be disabled with the unset or set noname commands.
     Options may be either binary, in which case it is only significant to see whether they are set or not;
     or string, in which case the actual value is of interest.  If an option is not set, mail will look for
     an environment variable of the same name.  The available options include the following:

     append  Causes messages saved in mbox to be appended to the end rather than prepended.  This should
             always be set (preferably in one of the system-wide mail.rc files).  Default is noappend.

     ask, asksub
             Causes mail to prompt you for the subject of each message you send.  If you respond with simply
             a newline, no subject field will be sent.  Default is asksub.

     askbcc  Causes you to be prompted for additional blind carbon copy recipients at the end of each mes-sage. message.
             sage.  Responding with a newline indicates your satisfaction with the current list.  Default is
             noaskbcc.

     askcc   Causes you to be prompted for additional carbon copy recipients at the end of each message.
             Responding with a newline indicates your satisfaction with the current list.  Default is
             noaskcc.

     autoinc
             Causes new mail to be automatically incorporated when it arrives.  Setting this is similar to
             issuing the inc command at each prompt, except that the current message is not reset when new
             mail arrives.  Default is noautoinc.

     autoprint
             Causes the delete command to behave like dp; thus, after deleting a message, the next one will
             be typed automatically.  Default is noautoprint.

     crt     The valued option crt is used as a threshold to determine how long a message must be before
             PAGER is used to read it.  If crt is set without a value, then the height of the terminal
             screen stored in the system is used to compute the threshold (see stty(1)).  Default is nocrt.

     debug   Setting the binary option debug is the same as specifying -d on the command line and causes
             mail to output all sorts of information useful for debugging mail.  Default is nodebug.

     dot     The binary option dot causes mail to interpret a period alone on a line as the terminator of a
             message you are sending.  Default is nodot.

     escape  If defined, the first character of this option gives the character to use in place of `~' to
             denote escapes.

     flipr   Reverses the sense of reply and Reply commands.  Default is noflipr.

     folder  The name of the directory to use for storing folders of messages.  If this name begins with a
             `/', mail considers it to be an absolute pathname; otherwise, the folder directory is found
             relative to your home directory.

     header  If defined, initially display message headers when reading mail or editing a mail folder.
             Default is header.  This option can be disabled by giving the -N flag on the command line.

     hold    This option is used to hold messages in the system mailbox by default.  Default is nohold.

     ignore  Causes interrupt signals from your terminal to be ignored and echoed as @'s. Default is
             noignore.

     ignoreeof
             An option related to dot is ignoreeof which makes mail refuse to accept a <control-D> as the
             end of a message.  Ignoreeof also applies to mail command mode.  Default is noignoreeof.

     indentprefix
             String used by the ~m tilde escape for indenting messages, in place of the normal tab character
             (^I).  Be sure to quote the value if it contains spaces or tabs.

     metoo   Usually, when a group is expanded that contains the sender, the sender is removed from the
             expansion.  Setting this option causes the sender to be included in the group.  Default is
             nometoo.

     quiet   Suppresses the printing of the version when first invoked.  Default is noquiet.

     record  If defined, gives the pathname of the file used to record all outgoing mail.  If not defined,
             outgoing mail is not saved.  Default is norecord.

     Replyall
             Reverses the sense of reply and Reply commands.  Default is noReplyall.

     save    If this option is set, and you abort a message with two RUBOUT (erase or delete), mail will
             copy the partial letter to the file dead.letter in your home directory.  Default is save.

     searchheaders
             If this option is set, then a message-list specifier in the form ``/x:y'' will expand to all
             messages containing the substring y in the header field x.  The string search is case insensi-tive. insensitive.
             tive.  If x is omitted, it will default to the ``Subject'' header field.  The form ``/to:y'' is
             a special case, and will expand to all messages containing the substring y in the ``To'',
             ``Cc'' or ``Bcc'' header fields.  The check for "to" is case sensitive, so that ``/To:y'' can
             be used to limit the search for y to just the ``To:'' field.  Default is nosearchheaders.

     toplines
             If defined, gives the number of lines of a message to be printed out with the top command; nor-mally, normally,
             mally, the first five lines are printed.

     verbose
             Setting the option verbose is the same as using the -v flag on the command line.  When mail
             runs in verbose mode, the actual delivery of messages is displayed on the user's terminal.
             Default is noverbose.

ENVIRONMENT
     DEAD     Pathname of the file to save partial messages to in case of interrupts or delivery errors.
              Default is ~/dead.letter.

     EDITOR   Pathname of the text editor to use in the edit command and ~e escape.  If not defined, then a
              default editor is used.

     HOME     Pathname of the user's home directory.

     LISTER   Pathname of the directory lister to use in the folders command.  Default is /bin/ls.

     MAIL     Location of the user's mailbox.  Default is /var/mail.

     MAILRC   Pathname of file containing initial mail commands.  Default is ~/.mailrc.

     MBOX     The name of the mailbox file.  It can be the name of a folder.  The default is mbox in the
              user's home directory.

     PAGER    Pathname of the program to use in the more command or when crt variable is set.  The default
              paginator more(1) is used if this option is not defined.

     REPLYTO  If set, will be used to initialize the Reply-To field for outgoing messages.

     SHELL    Pathname of the shell to use in the ! command and the ~! escape.  A default shell is used if
              this option is not defined.

     VISUAL   Pathname of the text editor to use in the visual command and ~v escape.

     USER     Login name of the user executing mail.

FILES
     /var/mail/*                 Post office.
     ~/mbox                      User's old mail.
     ~/.mailrc                   File giving initial mail commands.  This can be overridden by setting the
                                 MAILRC environment variable.
     /tmp/R*                     Temporary files.
     /usr/share/misc/mail.*help  Help files.

     /usr/share/misc/mail.rc
     /usr/local/etc/mail.rc
     /etc/mail.rc                System-wide initialization files.  Each file will be sourced, in order, if
                                 it exists.

SEE ALSO
     fmt(1), newaliases(1), vacation(1), aliases(5), mailaddr(7), sendmail(8)

     The Mail Reference Manual.

HISTORY
     A mail command appeared in Version 1 AT&T UNIX.  This man page is derived from The Mail Reference
     Manual originally written by Kurt Shoens.

BUGS
     There are some flags that are not documented here.  Most are not useful to the general user.

     Usually, mail is just a link to Mail and mailx, which can be confusing.

     The name of the alternates list is incorrect English (it should be ``alternatives''), but is retained
     for compatibility.

BSD                            February 29, 2004                           BSD

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