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Full Discussion: User switching without carrying over LC_CTYPE env variable
Top Forums Shell Programming and Scripting User switching without carrying over LC_CTYPE env variable Post 302798475 by kchinnam on Wednesday 24th of April 2013 02:09:05 PM
Old 04-24-2013
User switching without carrying over LC_CTYPE env variable
I am using Solaris8, userA's shell '/usr/ace/prog/sdshell', AppuserB's shell '/bin/ksh'.

Code:
serverT:/home/userA>LC_CTYPE=iso_8859_1; export LC_CTYPE; vtemp='userA variable'; export vtemp   
 
serverT:/home/userA>echo "LC_CTYPE=$LC_CTYPE, vtemp=$vtemp";
LC_CTYPE=iso_8859_1, vtemp=userA variable
 
serverT:/home/userA>sudo /usr/bin/su - AppuserB
Password:
 
serverT:/export/apps/AppuserB> echo "LC_CTYPE=$LC_CTYPE, vtemp=$vtemp"
LC_CTYPE=iso_8859_1, vtemp=

I am switching from userA's account to AppuserB's using 'sudo /usr/bin/su - AppuserB'. This is not bringing any of 'userA' environment variables except 'LC_CTYPE' over to 'AppuserB' account. What tells sudo to bring this variable over? How can I prevent this? Is there a way to make sure none of userA's env variables get carried over to userB's including these system variables !!?
Last edited by kchinnam; 04-24-2013 at 04:39 PM.. Reason: correction to example
 

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LEARN ABOUT OPENSOLARIS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/ksh93, /bin/pfcsh, /bin/pfksh, /bin/pfsh,
       /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/ksh93, /usr/bin/pfcsh,
       /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh, and /usr/sfw/bin/zsh. /etc/shells overrides the default list.

       Invalid shells in /etc/shells could cause unexpected behavior, such as being unable to log in by way of ftp(1).

FILES

       /etc/shells    list of shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.11							    20 Nov 2007 							 shells(4)
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