argv0(1)                                                 argv0(1)


NAME
       argv0 - runs a program with a specified 0th argument.

SYNOPSIS
       argv0 realname zero args

DESCRIPTION
       realname  is one argument.  zero is one argument.  args is
       any number of arguments.

       argv0 runs the program stored as realname  on  disk,  with
       zero  as  the 0th argument (rather than realname) and args
       as the remaining arguments.

APPLICATIONS
       Some programs pay special attention to the  0th  argument.
       argv0 makes these programs usable from shell scripts.

       For example,

              argv0 /bin/csh -csh

       runs  /bin/csh  with a 0th argument of -csh. /bin/csh will
       think it is a login shell and behave accordingly.

       As another example, the command

              tcpserver 0 ftp argv0 tcpd ftpd -l -A

       has a similar effect to the line

              ftp stream tcp nowait root tcpd ftpd -l -A

       in /etc/inetd.conf. The tcpd program is run with 0th argu-
       ment  ftpd  and  remaining arguments -l -A. Note that tcpd
       can  and  should  be  replaced  by  the   -x   option   of
       tcpserver(1):

              tcpserver -x ftp.tcp 0 ftp ftpd -l -A

SEE ALSO
       tcpserver(1),  tcprules(1),  tcprulescheck(1), fixcrio(1),
       recordio(1), rblsmtpd(1), tcpclient(1), who@(1), date@(1),
       finger@(1),  http@(1),  tcpcat(1),  mconnect(1), tcp-envi-
       ron(5)

       http://cr.yp.to/ucspi-tcp.html










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