Aloha! I have just over 1k of users that have permissions that they shouldn't under our system. I need to parse a provided list of usernames, check their permissions file, and strip the permissions that they are not allowed to have. If upon the permissions strip they are left with no permissions, I need have a basic permissions line added to their permission file. I am creating this script so our helpdesk guys can use it later because I can see something similar happening again.
Everything on the following script works correctly unless the user has no permissions left. The sed statement will display the correct insertion but will not overwrite the file. I have also tried piping it to cat and then redirect to the file but that just appends....Please Help!!
Oh! BTW this is in Korn shell under AIX 5.3
Also FYI permission lines are always first in the file and they are the only lines that start with numerals.
Code:
echo "Where is the user Listing?"
read usrList
usrName=""
fChar=""
while [ 1 ]
do
read usrName || break
sudo sed -e '/APCLERK/d' /home/$usrName/.facet | cat >> /home/testdir/$usrName
fChar=`head -c 1 /home/testdir/$usrName`
if [[ $fChar != [0-9] ]]
then
sudo sed -f /home/testdir/sedInqIns.sed /home/testdir/$usrName > /home/testdir/$usrName
fi
done < $usrList
On execution of this script the users that have no permissions are left with a completely blank file (there should be other settings in the file besides permissions). The users that have other permissions are fine.
Any help will be greatly appreciated.
Mahalo!!
Last edited by Malumake; 10-23-2007 at 09:17 PM..
Reason: Additional Information
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LEARN ABOUT MINIX
chmod
CHMOD(1) General Commands Manual CHMOD(1)NAME
chmod - change access mode for files
SYNOPSIS
chmod [-R] mode file ...
OPTIONS -R Change hierarchies recursively
EXAMPLES
chmod 755 file # Owner: rwx Group: r-x Others: r-x
chmod +x file1 file2
# Make file1 and file2 executable
chmod a-w file # Make file read only
chmod u+s file # Turn on SETUID for file
chmod -R o+w dir # Allow writing for all files in dir
DESCRIPTION
The given mode is applied to each file in the file list. If the -R flag is present, the files in a directory will be changed as well. The
mode can be either absolute or symbolic. Absolute modes are given as an octal number that represents the new file mode. The mode bits are
defined as follows:
4000 Set effective user id on execution to file's owner id
2000 Set effective group id on execution to file's group id
0400 file is readable by the owner of the file
0200 writeable by owner
0100 executable by owner
0070 same as above, for other users in the same group
0007 same as above, for all other users
Symbolic modes modify the current file mode in a specified way. The form is:
[who] op permissions { op permissions ...} {, [who] op ... }
The possibilities for who are u, g, o, and a, standing for user, group, other and all, respectively. If who is omitted, a is assumed, but
the current umask is used. The op can be +, -, or =; + turns on the given permissions, - turns them off; = sets the permissions exclu-
sively for the given who. For example g=x sets the group permissions to --x.
The possible permissions are r, w, x; which stand for read, write, and execute; s turns on the set effective user/group id bits. s only
makes sense with u and g; o+s is harmless.
SEE ALSO ls(1), chmod(2).
CHMOD(1)
10-23-2007
SED help (remove line::parse again::add line)
