loop picks up password for 2 entry...how to avoid that ? Post: 302540327

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Top Forums Shell Programming and Scripting loop picks up password for 2 entry...how to avoid that ? Post 302540327 by gary_w on Wednesday 20th of July 2011 10:35:38 AM

07-20-2011

Registered User

Get the SID and password at the same time

Try implementing something like this to save a few processes, useless use of cat and get the data you need at the same time, a row at a time (note this is untested)::

Code:

#!/bin/ksh

###########################
#check for the oratab file. to get db name and info
###########################
ORATAB=/etc/oratab
LOGFILE=test_output.txt  # Set the logfile in one place so if it changes you have only one place to edit.

#
# set ORACLE SID and export path to use as client
#
ORACLE_SID=becsdev
ORAENV_ASK=NO
. oraenv
# loop to get sid info
while IFS=',' read ORACLE_SID pass
do
   echo '###################################################################################' >> $LOGFILE
   echo "ORACLE SID IS SET TO $ORACLE_SID" >> $LOGFILE

   sqlplus "system/$pass@$ORACLE_SID" << EOF >> $LOGFILE
  @test.sql
EOF
   echo '#####################################################################################' >> $LOGFILE
done < /home/sidlist

You should read up on using SQL/Plus in a coprocess to save having to start it up once for every row in the sidlist file.

Also be care careful as I believe a ps -ef will show the username and password from the sqlplus command line which is a security issue.

Gary

Last edited by gary_w; 07-20-2011 at 01:32 PM.. Reason: double quotes around the statement echoing ORACLE_SID to the LOGFILE

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LEARN ABOUT ULTRIX

su

su(1) General Commands Manual su(1)

Name
su - substitute a user ID

Syntax
su [username]

su - [username]

su -f [username]

Description
The command requests the password of the specified username. If the correct password is given, changes to that username without changing
the current directory. The user environment is unchanged except for HOME and SHELL which are taken from the password file entry for user-
name. The shell that is run is also taken from the password file entry for username. The new user ID stays in force until the shell
exits.

If no username is specified, `root' is assumed. To remind the superuser of his responsibilities, the shell substitutes `#' for its usual
prompt.

Options
-f Prevents from executing the .cshrc file, making start up faster.

- Simulates a full login.

Diagnostics
Sorry
An invalid password was supplied for the specified username.

Unknown login: username
The specified username was not found in the passwd database.

No directory
The home directory for the username is not accessible at this time (only with ``-'' argument).

No shell
The shell specified in the passwd database entry for username could not be executed.

Kerberos initialization failure
Consult your system administrator.

If enhanced security features are enabled the following error messages are also possible:

Requires secure terminal
Attempt to su to UID 0 on a line that is not marked secure in

User's password has expired
Access is denied because the password for username is expired.

This account is disabled
Access is denied because the auth entry corresponding to username is marked disabled.

Files
Log file of anyone who became
root, with a date mark.

See Also
csh(1), sh(1), passwd(5yp), environ(7), edauth(8)
Security Guide for Administrators
Security Guide for Users

su(1)