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Full Discussion: meaning of #!/bin/ksh -p
Top Forums Shell Programming and Scripting meaning of #!/bin/ksh -p Post 302459467 by Corona688 on Monday 4th of October 2010 05:45:51 PM
Old 10-04-2010
From man ksh:
Code:
              -p      Disables processing of the $HOME/.profile file and  uses
                      the  file  /etc/suid_profile  instead  of  the ENV file.
                      This mode is on whenever the effective uid (gid) is  not
                      equal  to  the  real uid (gid).  Turning this off causes
                      the effective uid and gid to be set to the real uid  and
                      gid.

This User Gave Thanks to Corona688 For This Post:
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LEARN ABOUT SUNOS

setegid

setuid(2)							   System Calls 							 setuid(2)

NAME

       setuid, setegid, seteuid, setgid - set user and group IDs

SYNOPSIS

       #include <sys/types.h>
       #include <unistd.h>

       int setuid(uid_t uid);

       int setgid(gid_t gid);

       int seteuid(uid_t euid);

       int setegid(gid_t egid);

DESCRIPTION

       The  setuid()  function	sets the real user ID, effective user ID, and saved user ID of the calling process. The setgid() function sets the
       real group ID, effective group ID, and saved group ID of the calling process. The setegid() and seteuid() functions set the effective group
       and user IDs respectively for the calling process. See intro(2) for more information on real, effective, and saved user and group IDs.

       At  login time, the real user ID, effective user ID, and saved user ID of the login process are set to the login ID of the user responsible
       for the creation of the process. The same is true for the real, effective, and saved group IDs; they are set to the group ID  of  the  user
       responsible for the creation of the process.

       When  a process calls one of the exec(2) family of functions to execute a file (program), the user and/or group identifiers associated with
       the process can change. If the file executed is a set-user-ID file, the effective and saved user IDs of the process are set to the owner of
       the  file  executed.  If the file executed is a set-group-ID file, the effective and saved group IDs of the process are set to the group of
       the file executed. If the file executed is not a set-user-ID or set-group-ID file, the effective user ID, saved user  ID,  effective  group
       ID, and saved group ID are not changed.

       If  the	{PRIV_PROC_SETID}  privilege is asserted in the effective set of the process calling setuid(), the real, effective, and saved user
       IDs are set to the uid argument.  If the uid argument is 0 and none of the saved, effective or  real  UID  is  0,  additional  restrictions
       apply. See privileges(5).

       If  the	{PRIV_PROC_SETID}  privilege  is not asserted in the effective set, but uid is either the real user ID or the saved user ID of the
       calling process, the effective user ID is set to uid.

       If the {PRIV_PROC_SETID} privilege is asserted in the effective set of the process calling setgid(), the real, effective, and  saved  group
       IDs are set to the gid argument.

       If  the	{PRIV_PROC_SETID} privilege is not asserted in the effective set, but gid is either the real group ID or the saved group ID of the
       calling process, the effective group ID is set to gid.

RETURN VALUES

       Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

       The setuid() and setgid() functions will fail if:

       EINVAL	       The value of uid or gid is out of range.

       EPERM	       For setuid() and seteuid(), the {PRIV_PROC_SETID} privilege is not asserted in the effective set of the calling process and
		       the uid argument does not match either the real or saved user IDs, or an attempt is made to change to UID 0 and none of the
		       existing UIDs is 0, in which case additional privileges are required.

		       For setgid() and setegid(), the {PRIV_PROC_SETID} privilege is not asserted in the effective set and the gid argument  does
		       not match either the real or saved group IDs.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Async-Signal-Safe 	   |
       +-----------------------------+-----------------------------+

SEE ALSO

       intro(2), exec(2), getgroups(2), getuid(2), stat.h(3HEAD), attributes(5), privileges(5), standards(5)

SunOS 5.10							    20 Jan 2003 							 setuid(2)
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