This chapter describes the command line options to transfer a new or existing archive to other people by FTP or email.
Transferring an Archive with FTP
If your machine has a standard FTP (File Transfer Protocol) program to transfer files over the Internet, you can include an instruction to Smartcrypt to use the program to send an archive after creating it. For example, the following command lines each create an archive mydocs.zip and transfer it to the address specified in the ftp sub-option. The second example explicitly specifies an FTP user name, passphrase, and account:
pkzipc -add -ftp=wash/home/thomas mydocs.zip *.doc
pkzipc -add -ftp=jefferson:monticello:vip@wash/home/thomas mydocs.zip *.doc
The ftp command/option can be used with the add command, as in the command lines above, or by itself. When used as a command by itself, ftp simply transfers the specified file. For example, the following command line transfers existing file mydocs.zip:
pkzipc -ftp=jefferson:monticello@wash/home/jefferson mydocs.zip
Use ftp with the delete command to transfer an archive after deleting some files in it:
pkzipc -delete -ftp=wash/home/jefferson mydocs.zip *.txt
You can configure ftp to use a default address, but you must still include the option on the command line to actually perform an FTP transfer.
pkzipc -add -ftp mydocs.zip mydocs.zip *.doc
The ftp address sub-option has the following syntax (optional fields are bracketed).
- To specify a full path on the server:
- To specify a relative path on the server, that is, a path relative to the directory that the server chooses for your login:
- username (optional) is the user account with which to log in if the FTP server requires a login. If a username is not supplied, Smartcrypt tries to log in as the user ftp.
- passphrase (optional) is the passphrase associated with the user account. If no passphrase is given, Smartcrypt tries an empty passphrase. A colon (🙂 is not allowed in the passphrase as this character is used to separate username, passphrase, and account values.
- account (optional) is for use only with FTP servers that require additional authentication. Do not specify the account for servers that do not require it.
- server is the FTP server name
- path (relative path or full path; optional) is the path to the destination of the transferred file on the server. If you omit a path, Smartcrypt transfers the archive to the default folder on the FTP server.
Include the movearchive option to delete from your hard disk an archive that you no longer want after transferring it:
pkzipc -add -movearchive -ftp=wash/home/jefferson mydocs.zip *.doc
If for some reason an archive is not transferred to the FTP server, movearchive does not delete it.
Note: The ftp option can only send ZIP archives that are physical files. It cannot send ZIP archives from STDIN, STDOUT, or special files (named pipes, sockets).
UNIX users may also use the SSH File Transfer Protocol (sftp) to send ZIP archives through a secure channel.
It works exactly as ftp does, as shown in this example:
pkzipc -add -sftp=jefferson:monticello:vip@wash/home/thomas mydocs.zip *.doc
Sending an Archive by Email
mailTo, mailFrom, mailServer, mailBCC, mailBody, mailCC, mailOptions, mailReplyTo, mailSubject
You can send a new or existing archive as an email attachment directly from the Smartcrypt command line. To do so, use the mailTo option to specify recipients of the message, mailFrom to give your own address, and mailServer to list the SMTP server to use to send the message. Other options are available for such other common email-related fields as CC (for recipients to be sent a copy) and BCC (for recipients to be sent a blind copy).
For example, the following command line adds files to archive data.zip and emails the archive to John Public as an attachment:
pkzipc -add -mailTofirstname.lastname@example.org -mailFromemail@example.com -mailServer=smtp.myplace.net -mailSubject="Latest sales" data.zip *.doc
In the following example, mailTo is used as a standalone command, without add, to send an existing archive:
pkzipc -mailTofirstname.lastname@example.org -mailFromemail@example.com -mailServer=smtp.myplace.net -mailSubject="Latest sales" data.zip
You can include the movearchive option to delete from your hard disk an archive that you no longer want after emailing it.
Note: The mailTo command/option can only mail ZIP archives that are physical files. It cannot mail ZIP archives from STDIN, STDOUT, or special files (named pipes, sockets).
Configuring Required Options
To email an archive, each of the three options mailTo, mailFrom, and mailServer must be specified.
To avoid having to specify these three options on the command line, you can use the configuration command to configure values for mailFrom and mailServer for use by default. Then you need only specify mailTo on the command line. All the mail… options are configurable. (To tell Smartcrypt to mail an archive, you must include mailTo on the command line even if a value for the option is configured.)
Specifying a Mail Server
The mailServer option specifies the SMTP server to use. The server specified for mailServer must be available without a proxy server and must allow email to be forwarded from the machine on which you run Smartcrypt.
Set the name or IP address of the server into mailServer as a sub-option. You can either do this on the command line, as in the preceding examples, or you can configure mailServer to use a specified server by default. For example:
pkzipc -config -mailserver=mail.abc.com
If necessary, you can specify a user name and/or passphrase. This tells Smartcrypt to try plain-text or login authentication to connect to the server. Prefix the passphrase with a colon (🙂, and use an at sign (@) to separate user/passphrase information from the server address like this: user:passphrase@server. For example:
pkzipc -config -mailserver=john:firstname.lastname@example.org
pkzipc -config -mailserver=:email@example.com
Note the colon before the passphrase.
The following command line creates and sends data.zip with the message text specified in mailBody. Set off the message text in quotes:
pkzipc -add -mailTofirstname.lastname@example.org -mailSubject="Latest sales" -mailBody="Here are the sales figures I promised." data.zip *.doc
Sending to Multiple Recipients
To send an archive to multiple email recipients, use mailTo multiple times or use it to specify a file that lists recipients. The following command line uses mailTo multiple times to send to multiple recipients. Each receives a message listing all other recipients who appear in the TO list:
pkzipc -add -mailToemail@example.com -mailTofirstname.lastname@example.org -mailSubject="Latest sales" -mailBody="Here are the sales figures I promised" data.zip *.doc
Sending to a List of Recipients
The mailTo option can take the name of a list file as a sub-option. In the file, list addresses of recipients one to a line. On the command line, prefix the file name with the listchar character (@ by default). The message is sent to every address in the file:
pkzipc -add -email@example.com -mailserver=mail01 -firstname.lastname@example.org files.zip *.doc
Sending Encrypted Attachments
Use mailTo with its recipient sub-option to send an archive to the same recipients for whom you encrypt it. For example:
pkzipc -add -email@example.com -firstname.lastname@example.org -mailTo=recipient -mailserver=mail01 -email@example.com files.zip *.doc
The command line above uses the recipient option to encrypt the archive for specified recipients. It uses mailTo with the recipient sub-option to send the archive to those same recipients.
Note: For the mailTo recipient sub-option to work, the recipients' certificates used to encrypt must contain email addresses. Smartcrypt alerts you with a warning message for any recipient for whom Smartcrypt cannot find an email address.
The recipient sub-option of mailTo can be used only when mailTo is used as an option with another command such as add: the mailTo recipient sub-option cannot be used when mailTo is used as a standalone command.
If you use the recipient option (not the mailTo recipient sub-option) to specify a file that lists the names of certificate holders, you do not need to list recipients on the command line. In this case, using mailTo with the recipient sub-option encrypts for, and sends to, all the certificate holders in the list, using the email addresses associated with their certificates.
pkzipc -add -firstname.lastname@example.org -mailto=recipient -mailserver=mail01 -email@example.com files.zip *.doc
Specifying Text in a File
If the text of the subject or body of the message is more than a few words or contains quotes, you can put the text in a file and specify the file in the sub-option. For example:
pkzipc -add -mailTofirstname.lastname@example.org -mailToemail@example.com -mailSubject=@subject_text.txt -mailBody=@body_text.txt data.zip *.doc
Use mailCC and mailBCC, respectively, to specify recipients to receive copies (CC) and blind copies (BCC) of messages. You can specify recipients' addresses directly, or you can specify a file containing a list of addresses.
Each recipient in the following command line receives a message showing all mailTo names in the TO list and the mailCC recipient in the CC list:
pkzipc -add -mailTofirstname.lastname@example.org -mailToemail@example.com -mailSubject="Latest sales" -mailBody="Here are the sales figures I promised" -mailCCfirstname.lastname@example.org -mailBCCemail@example.com data.zip *.doc
To send copies or blind copies to multiple recipients, either use mailCC or mailBCC multiple times, or list recipients in a file. Prefix the file name with the list character:
pkzipc -add -mailTofirstname.lastname@example.org -mailToemail@example.com -mailSubject="Latest sales" -mailBody="Here are the sales figures I promised" -mailCCfirstname.lastname@example.org -mailCCemail@example.com -mailBCC=@address_list.txt data.zip *.doc
Sending Split Archives
If you use the span option with mailTo to create and mail a split archive, Smartcrypt sends each segment of the split archive in a separate mail message. This is useful when your recipient's email server has size limits on file attachments on individual emails.
Hiding the TO List
If you do not want recipients to see names of other recipients in the TO list, use the mailOptions option with either the each or the undisclosed sub-option.
The each sub-option causes each mailTo recipient to receive a message showing only his own name in the TO list. All mailTo recipients see all names in the CC list. Any mailCC and mailBCC recipients receive a copy of each message to each mailTo recipient:
pkzipc -add -mailTofirstname.lastname@example.org -mailToemail@example.com -mailOptions=each -mailSubject="Latest sales" -mailBody="Here are the sales figures I promised" -mailCCfirstname.lastname@example.org -mailBCCemail@example.com data.zip *.doc
The undisclosed sub-option works just like the each sub-option except that the message that each recipient receives displays Undisclosed in the TO field instead of the recipient's name.
The each option causes Smartcrypt to generate a distinct mail message for each recipient, showing only that recipient's address in the TO field. The undisclosed sub-option requires Smartcrypt and the mail server to do less processing and so sends a bit faster.
Including Instructions on How to Unzip
The instructions sub-option of mailOptions causes Smartcrypt to include a small, additional attachment explaining how to unzip a ZIP file.
pkzipc -add -mailTofirstname.lastname@example.org -mailSubject="Plans" -mailOptions=instructions plans.zip *.doc
The instructions and each sub-options of mailOptions can be set together, separated by a comma:
… -mailOptions=each,instructions …
Using a ReplyTo Address
With the mailReplyTo option, you can specify an alternate email address for recipients to use to reply to the message instead of the mailFrom address. For example:
pkzipc -add -mailToemail@example.com -mailFromfirstname.lastname@example.org -mailSubject="Plans" -mailreplyToemail@example.com plans.zip *.doc