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Top Forums Shell Programming and Scripting Trying to create a script to run as root, permission denied Post 302799557 by Corona688 on Friday 26th of April 2013 05:02:52 PM
Old 04-26-2013
This command does not do what you think it does:

Code:
sudo cat <<EOF >> launchd.conf
umask 000
EOF

Let me explain in detail the order which it does these things.
  • Redirects 'umask 000' into stdin
  • Redirects stdout into launchd.conf
  • Forks and executes 'sudo cat', letting it inherit these I/O redirections

You see the problem? It opens the files before it runs sudo. It has to -- you can't alter stdin and stdout for a program that's already running, you have to set them up first. By the time you call sudo, your shell has already tried and failed to open the file.

You have to run all that code inside sudo, since sudo is the thing with elevated permissions.

Code:
sudo bash <<EOF
        echo "umask 000" >> launchd.conf
EOF

 

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heimdal_debug(5)					      BSD File Formats Manual						  heimdal_debug(5)

NAME
heimdal_debug -- how to turn on/off debugging for Kerberos tools DESCRIPTION
The heimdal_debug kerberos frameworks have several knobs for controlling logging. The different framework knobs are: libkrb The Kerberos library, some gss-api Kerberos output ends up here too kcm the kcm library (credentials cache, ntlm client) kdc the kerberos KDC output digest-service the digest service (ntlm server) CONFIGURATION FILE
[logging] <subsystem> = 0-/SYSLOG: and watch syslog for logging information. APPLE MAC OS X
First turn up syslog debugging sudo syslog -c 0 -d then you can see the syslog output in Console.app or by running syslog -w -k org.h5l.asl To enable more extensive debugging logging for each subsystem, use the following commands: Kerberos Library sudo defaults write /Library/Preferences/com.apple.Kerberos logging -dict-add krb5 '0-/ASL:' digest-server sudo defaults write /Library/Preferences/com.apple.Kerberos logging -dict-add digest-service '0-/ASL:' kcm sudo defaults write /Library/Preferences/com.apple.Kerberos logging -dict-add kcm '0-/ASL:' kdc sudo defaults write /Library/Preferences/com.apple.Kerberos logging -dict-add kdc '0-/ASL:' MIT Kerberos Shim defaults write com.apple.MITKerberosShim EnableDebugging -bool true GSS-API framework logging sudo defaults write /Library/Preferences/com.apple.GSS DebugLevel -int 10 Other options on Mac OS X Make the admin API pretend to the server even on client sudo defaults write /Library/Preferences/com.apple.Kerberos ForceHeimODServerMode -bool true SEE ALSO
gss(5), kerberos(8) HEIMDAL
Sep 30, 2011 HEIMDAL
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