UNIX mail blank in the TO address


 
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Old 12-12-2013
i suppose since you are using command line arguments and assigning it to some other variables and when you do not give any one of the argument on command line the next argument becomes that argument


i.e example if you have to pass 4 arguments and if you specify only three then

i.e if suppose u pass 1st 2nd and 4th argument on command line then

the ath argument in above will become 3rd


so it would be better if you can introduce a check and let user know that if he doesny want to specify the to address can u ask then to enter a space in quotes


all pls correct me if im wrong
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mail.local(1M)						  System Administration Commands					    mail.local(1M)

NAME
mail.local - store mail in a mailbox SYNOPSIS
/usr/lib/mail.local [-f sender] [-d] recipient DESCRIPTION
mail.local reads the standard input up to an end-of-file and appends it to each user's mail file (mailbox). This program is intended to be used by sendmail(1M) as a mail delivery agent for local mail. It is not a user interface agent. Messages are appended to the user's mail file in the /var/mail directory. The user must be a valid user name. Each delivered mail message in the mailbox is preceded by a "Unix From line" with the following format: From sender_address time_stamp The sender_address is extracted from the SMTP envelope address (the envelope address is specified with the -f option). A trailing blank line is also added to the end of each message. The mail files are locked with a .lock file while mail is appended. The mail files are created with mode 660, owner is set to recipient, and group is set to mail. If the ``biff'' service is returned by get- servbyname(3SOCKET), the biff server is notified of delivered mail. This program also computes the Content-Length: header which will be used by the mailbox reader to mark the message boundary. OPTIONS
The following options are supported: -f sender Specifies the "envelope from address" of the message. This flag is technically optional, but should be used. -d Specifies the recipient of the message. This flag is also optional and is supported here for backward compatibility. That is, mail.local recipient is the same as mail.local -d recipient. -l Turn on LMTP mode. -r from Specify the sender's name (for backward compatibility). -7 Do not advertise 8BITMIME support in LMTP mode. -b Return a permanent error instead of a temporary error if a mailbox exceeds quota. OPERANDS
The following operand is supported: recipient The recipient of the mail message. ENVIRONMENT VARIABLES
TZ Used to set the appropriate time zone on the timestamp. EXIT STATUS
The following exit values are returned: 0 Successful operation. >0 An error occurred. FILES
/tmp/local.XXXXXX temporary files /tmp/lochd.XXXXXX temporary files /var/mail/user_name user's mail file ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWsndmu | +-----------------------------+-----------------------------+ SEE ALSO
mail(1), comsat(1M), sendmail(1M), getservbyname(3SOCKET), attributes(5) SunOS 5.11 11 Apr 1997 mail.local(1M)