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Full Discussion: Identify if ran by su or sudo?
Top Forums Shell Programming and Scripting Identify if ran by su or sudo? Post 302425574 by ericdp63 on Friday 28th of May 2010 01:27:07 PM
Old 05-28-2010
Java Identify if ran by su or sudo?
Recently I was on an operational call and heard the people running my code placing the code in the /tmp directory and running as root. I had not planned on that. So I want to add some checks to my code (using ksh93):

Code:
# ---------- ---------- ----------
# root not allowed to run this
# ---------- ---------- ----------
[[ $( whoami ) = root ]] && exit 2

# ---------- ---------- ----------
# Don't run this in /tmp
# ---------- ---------- ----------
[[ $( pwd ) = /tmp* ]] && exit 3

# ---------- ---------- ----------
# Don't run as sudo
# ---------- ---------- ----------


# ---------- ---------- ----------
# How much space is available here?
#
# Filesystem    Type   1K-blocks      Used Available Use% Mounted on
# /dev/sda3     ext3    68588072  32259392  32788356  50% /home
# ---------- ---------- ----------
integer _avail=$( df -k . | grep -v "^Filesystem" | awk '{ print $4 }' )
integer _threshold=26214400  # 25GB
(( _avail < _threshold )) && {

    print -u2 "***> There is not enough space (25gb) on this mount point!"
    print -u2 "     Only found ${_avail} kb."
    exit 4

}

What I can't find is a means to check the case where my code was run with sudo or "su -". The above 'whomai' returns the users name, not the fact it was run with root access through sudo. There are many reasons to use sudo, but in this case I want my app to run as a normal user with normal permissions, no extra help.


Is this possible? any ideas? I've done some google searching and all the references I can find are on how to use sudo, not how to identify it is being used.


Thanks for any help.
Eric
 

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LEARN ABOUT DEBIAN

pegasus-remove

PEGASUS-REMOVE(1)														 PEGASUS-REMOVE(1)

NAME

       pegasus-remove - removes a workflow that has been planned and submitted using pegasus-plan and pegasus-run

SYNOPSIS

       pegasus-remove [-d dagid] [-v] [rundir]

DESCRIPTION

       The pegasus-remove command remove a submitted/running workflow that has been planned and submitted using pegasus-plan and pegasus-run. The
       command can be invoked either in the planned directory with no options and arguments or just the full path to the run directory.

OPTIONS

       By default pegasus-remove does not require any options or arguments if invoked from within the planned workflow directory. If running the
       command outside the workflow directory then a full path to the workflow directory needs to be specified or the dagid of the workflow to be
       removed.

       pegasus-remove takes the following options:

       -d dagid, --dagid dagid
	   The workflow dagid to remove

       -v, --verbose
	   Raises debug level. Each invocation increase the level by 1.

       rundir
	   Is the full qualified path to the base directory containing the planned workflow DAG and submit files. This is optional if
	   pegasus-remove command is invoked from within the run directory.

RETURN VALUE

       If the workflow is removed successfully pegasus-remove returns with an exit code of 0. However, in case of error, a non-zero exit code
       indicates problems. An error message clearly marks the cause.

FILES

       The following files are opened:

       braindump
	   This file is located in the rundir. pegasus-remove uses this file to find out paths to several other files.

ENVIRONMENT VARIABLES

       PATH
	   The path variable is used to locate binary for condor_rm.

SEE ALSO

       pegasus-plan(1), pegasus-run(1)

AUTHORS

       Gaurang Mehta <gmehta at isi dot edu>

       Jens-S. Vockler <voeckler at isi dot edu>

       Pegasus Team http://pegasus.isi.edu

								    05/24/2012							 PEGASUS-REMOVE(1)
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