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OS X (Apple)
Execution Problems with ASU Shell Script
Post 302297393 by Talcon on Friday 13th of March 2009 09:06:15 AM
03-13-2009
Execution Problems with ASU Shell Script
Hello. I have been trying to create a shell script that checks to see if there are software updates and if not, then exit the script. If so, then check to see if a user is logged in. If a user is logged in, it will only install the updates. If a user is not logged in, then it will display a message for the user not to login until that pop-up is gone, then it will install all software updates and reboot the machine.
The script is executed via a Cron Job. It seems to not execute after the variables are declared. Here is the code I have. Any help in this matter is greatly appreciated!
#!/bin/sh
set applesw="/usr/sbin/softwareupdate -l | grep 'Software Update' | awk '{print $5}'"
set userlogin="who | grep 'console' | awk '{print $2}'"
if [ $applesw != "following" ] then
exit 0
else
if [ $userlogin = "console" ] then
/usr/sbin/softwareupdate -i -a
exit 0
else
/usr/bin/osascript -e 'tell app "System Events" to display dialog "Software Updates are currently running. Please do not login to this machine until this message is gone. Thank you."'
/usr/sbin/softwareupdate -i -a
/sbin/shutdown -r now
fi
fi
The script is executed via a Cron Job. It seems to not execute after the variables are declared. Here is the code I have. Any help in this matter is greatly appreciated!
#!/bin/sh
set applesw="/usr/sbin/softwareupdate -l | grep 'Software Update' | awk '{print $5}'"
set userlogin="who | grep 'console' | awk '{print $2}'"
if [ $applesw != "following" ] then
exit 0
else
if [ $userlogin = "console" ] then
/usr/sbin/softwareupdate -i -a
exit 0
else
/usr/bin/osascript -e 'tell app "System Events" to display dialog "Software Updates are currently running. Please do not login to this machine until this message is gone. Thank you."'
/usr/sbin/softwareupdate -i -a
/sbin/shutdown -r now
fi
fi
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LEARN ABOUT REDHAT
consolehelper
CONSOLEHELPER(8) System Manager's Manual CONSOLEHELPER(8) NAME
consolehelper - A wrapper that helps console users run system programs SYNOPSIS
progname [ options ] DESCRIPTION
consolehelper is a tool that makes it easy for console users to run system programs, doing authentication via PAM (which can be set up to trust all console users or to ask for a password at the system administrator's discretion). When possible, the authentication is done graphically; otherwise, it is done within the text console from which consolehelper was started. It is intended to be completely transparent. This means that the user will never run the consolehelper program directly. Instead, pro- grams like /sbin/shutdown are paired with a link from /usr/bin/shutdown to /usr/bin/consolehelper. Then when non-root users (specifically, users without /sbin in their path, or /sbin after /usr/bin) call the "shutdown" program, consolehelper will be invoked to authenticate the action and then invoke /sbin/shutdown. (consolehelper itself has no priviledges; it calls the userhelper(8) program do the real work.) consolehelper requires that a PAM configuration for every managed program exist. So to make /sbin/foo or /usr/sbin/foo managed, you need to create a link from /usr/bin/foo to /usr/bin/consolehelper and create the file /etc/pam.d/foo, normally using the pam_console(8) PAM mod- ule. OPTIONS
This program has no command line options of its own; it passes all command line options on to the program it is calling. SEE ALSO
userhelper(8) BUGS
No known bugs. Report any you find at http://developer.redhat.com/ at the BugTrack link. AUTHOR
Michael K. Johnson <johnsonm@redhat.com> Red Hat Software 18 March 1999 CONSOLEHELPER(8)