Chapter 15. The sendmail Command Line
The initial behavior of sendmail is determined largely by the command line used to invoke it. The command line can, for example, cause sendmail to use a different configuration file or to rebuild the aliases file rather than deliver mail. The command line can be typed at your keyboard, executed from a boot-time script, or even executed by an MUA when sending mail.
The format of the sendmail command line is:
argv[0] switches recipientsHere, argv[0] is the name used to run
sendmail. The
switches, if any are present, must always
precede the list of recipients. The
recipients is a list of zero or more
recipient address expressions.
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