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Full Discussion: Is there a way to check when the permissions for the file got changed in AIX
Top Forums UNIX for Dummies Questions & Answers Is there a way to check when the permissions for the file got changed in AIX Post 302876395 by wisecracker on Sunday 24th of November 2013 04:54:19 AM
Old 11-24-2013
Hi Vishal_dba...

If you are not sure experiment longhand first, this checks on the fly.
Admittedly it is not AIX but I am sure you can adapt the principle.
OSX 10.7.5, default bash terminal.
Code:
#!/bin/bash --posix
echo "This is a test string..." > /tmp/currentfile
chmod 755 /tmp/currentfile
cp /tmp/fileone /tmp/oldfile
chmod 755 /tmp/oldfile
hold=2
while true
do
	filecurrent=`ls -l /tmp/currentfile`
	fileold=`ls -l /tmp/oldfile`
	if [ "${filecurrent:0:10}" == "${fileold:0:10}" ]
	then
		echo "No change in permissions..."
		: # Do other stuff as required...
		sleep $hold
	else
		echo "Permissions changed..."
		break
	fi
	cp /tmp/currentfile /tmp/oldfile
	# The line below added for this DEMO...
	chmod 744 /tmp/oldfile
done
echo `date`

Results on above machine...
Code:
Last login: Sun Nov 24 09:44:12 on ttys000
AMIGA:barrywalker~> chmod 755 permissions.sh
AMIGA:barrywalker~> ./permissions.sh
No change in permissions...
Permissions changed...
Sun 24 Nov 2013 09:46:43 GMT
AMIGA:barrywalker~> _

 

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LEARN ABOUT SUSE

chkstat

CHKSTAT(8)					      Tool to check and set file permissions						CHKSTAT(8)

NAME

       chkstat - Tool to check and set file permissions

SYNOPSIS

       chkstat [--set|-set] [--noheader] [[--examine file ]...]  [[--files filelist ]...]  [[--root directory ]...]  permission-file ...

DESCRIPTION

       The program /usr/bin/chkstat is a tool to check and set file permissions.

       Multiple  permissions  files can be given on the commandline.  If the permission files contain multiple entries for a single file, the last
       entry found will be used.

   General Options
       --set, -set
	      This option enables setting the file permissions, the default is to check and warn only.

       --noheader
	      Omit printing the output header lines.

       --examine file
	      Check permissions for this file and not all files listed in the permissions files.

       --files filelist
	      Check permissions for the files listed in filelist and not for all files listed in the permissions files.

       --root directory
	      Prefix the files given in the permissions files by this directory.

EXAMPLE

       The command

	      chkstat -set /etc/permissions

       will parse the file /etc/permissions and set the access mode and the user- and group memberships each file listed. The format for the input
       file is

       FILEPATH OWNER:GROUP MODE

       and wildcards are not supported for the filepath. Lines starting with '#' and empty lines are treated as comments.

COPYRIGHT

       1996-2003 SuSE Linux AG, Nuernberg, Germany.

       2008 SUSE LINUX Products GmbH

AUTHORS

       Reinhold Sojer, Ruediger Oertel, Michael Schroeder

       Useful changes and additions by Tobias Burnus

3rd Berkeley Distribution					    2008-04-17								CHKSTAT(8)
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