mail - manual page for mail (GNU Mailutils 0.5)
mail [OPTION...] [address...]
GNU mail -- the standard /bin/mail interface
-a, --append=HEADER: VALUE Append given header to the message being sent.
-e, --exist
Return true if mail exists
-f, --file[=URL]
Operate on given mailbox URL (default ~/mbox)
-F, --byname
Save messages according to sender
-H, --headers
Write a header summary and exit
-i, --ignore
Ignore interrupts
-n, --norc
Do not read the system mailrc file
-N, --nosum
Do not display initial header summary
-p, --print
Print all mail to standard output
-q, --quit
Cause interrupts to terminate program
-r, --read
Same as -p
-s, --subject=SUBJ
Send a message with a Subject of SUBJ
-t, --to
Precede message by a list of addresses
-u, --user=USER
Operate on USER's mailbox
Common options
Print license and exit
--external-locker=PATH Set full path to the external locker program.
Number of seconds after which the lock expires
Default locker flags (E=external, R=retry, T=time, P=pid)
Set the maximum number of times to retry acquiring the lockfile
Set timeout for acquiring the lockfile
-m, --mail-spool=URL
Use specified URL as a mailspool directory
Enable TLS support
-?, --help
Give this help list
Give a short usage message
-V, --version
Print program version
Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

Report bugs to <[email protected]>.
The full documentation for mail is maintained as a Texinfo manual. If the info and mail programs are properly installed at your site, the command
info mail
should give you access to the complete manual.