.TH maildir2mbox 1 .SH NAME maildir2mbox \- move mail from a maildir to an mbox .SH SYNOPSIS .B maildir2mbox .SH DESCRIPTION .B maildir2mbox moves mail from a .IR maildir -format directory to an .IR mbox -format file. You must supply three environment variables to .BR maildir2mbox : .B MAILDIR is the name of your .I maildir directory; .B MAIL is the name of your .I mbox file; and .B MAILTMP is a temporary file that .B maildir2mbox can overwrite. .B MAILTMP and .B MAIL must be on the same filesystem. .B maildir2mbox is reliable: it will not remove messages from .B MAILDIR until the messages have been successfully appended to .BR MAIL . .B maildir2mbox locks .B MAIL to protect against simultaneous access by a mail reader. This locking system does not protect against simultaneous access by another .BR maildir2mbox ; you should run only one .B maildir2mbox at a time. .SH "SEE ALSO" maildir(5)