GeneralNotes

Test the mailserver
telnet 127.0.0.1 25 to escape :^] telnet>quit
nslookup earth.moon.com
ping earth.moon.com traceroute earth.moon.com
telnet earth.moon.com 25 helo earth.moon.com MAIL FROM: venus@earth.moon.com RCPT TO: zeus@earth.moon.com DATA .

Test the mailserver

telnet 127.0.0.1 25 
to escape
 :^] 
telnet>quit

nslookup earth.moon.com

ping earth.moon.com


traceroute earth.moon.com

telnet earth.moon.com 25  
helo earth.moon.com  
MAIL FROM: venus@earth.moon.com       
RCPT TO: zeus@earth.moon.com       
DATA  
.

telnet earth.moon.com 25 
helo earth.moon.com 
MAIL FROM: venus@earth.moon.com      
RCPT TO: zeus@earth.moon.com      
DATA 
.

Run SQL with in a Shell Script
sqlplus -s apps/apps@test <<EOF > run_id.txt set pagesize 0 feedback off verify off heading off echo off set serveroutput on BEGIN DBMS_OUTPUT.PUT_LINE('Hello'); END; / exit; EOF

$ORACLE_HOME/OPatch/opatch lsinventory -invPtrLoc $ORACLE_HOME/oraInst.loc

Create a password file

orapwd file=orapwTEST password=<password> entries=10

select name, log_mode from v$database;

alter system kill sessioni 'sid,serial#';

Kill oracle process to enable faster db shutdown.

Can be used to kill multiple process of other types. Substitute what you are grep'ing with the processes you want to kill. Test it first without the kill - (xargs kill -9. )

ps -ef|grep oratst |grep "LOCAL=NO" |awk '{ print $2 }' |xargs kill -9

ps -ef|grep oradev |grep "LOCAL=NO" |awk '{ print $2 }' |xargs kill -9

ps -ef|grep oracle |grep "LOCAL=NO" |awk '{ print $2 }' |xargs kill -9

ps -ef|grep applmgr|grep java |grep DCLIENT |awk '{ print $2 }' |xargs kill -9

Delete files

find . -name '*.log' \! -mtime -10 -exec rm {} \;

by inod
ls -i

find . -inum 2818445 -exec rm {} \;

% find . -inum 6239 -exec mv {} newname \;

Add this anywhere in the script you want to turn trace off or on.

set -x (sets trace on)
set +x (turns it off)

Set Line #'s in a vi'd file

set number
set nonumber

unset -f functionname

function func_name() {}

UNIX

Setup nfs mount to copy patches and disks over from different server

edit /etc/exports

/u09 earth(rw) venus(rw) pluto(rw)
/u10 earth(rw) venus(rw) pluto(rw)
/data earth(rw) venus(rw) pluto(rw)

service nfs stop
service nfs start

From earth:

mount pluto:/u09 /data/mo

From Venus

mount earth:/u09 /data/lmu

A forced umount "umount -f" usually doesn't resolve anything. The quick fix is:

a lazy unmount:
umount -l /mnt/deadmount

start stop sendmail

service sendmail stop

/etc/init.d/sendmail stop
/etc/init.d/sendmail start
/etc/init.d/sendmail restart

adadmin logs:

/u02/oracle/TEST/apps/apps_st/appl/admin/TEST/log/adamin_120109.log

Mail a file from Linux

In Red Hat Linux, uuencode is part of the sharutils package.

uuencode file file.name | mailx email@address
uuencode input_file output_file | sendmail recipient(s)
uuencode input_file output_file | mail -s  subject recipient(s)
uuencode input_file output_file | mailx -s subject recipient(s)



cat ${SUC_Template}.${DATE_TIME}.$$.tmp;uuencode ${ZIPFILE} "${SQL_NAME}.zp") | mailx -n -s "${SUBJECT}" ${BizEMailAddr}  



If change the mailx switch "-n" to "-m" it works.

cat $tmpbody; uuencode $filename $filename) | mail -s "${subject}" $location

How to send MIME attachments from the command-line

uuencode -m input_file output_file | mail -s mail_subject recipient(s)

System Configuration

To automate the startup of vncserver after boot, the /etc/sysconfig/vncservers must be configured. The syntax of configuration file is:

# VNCSERVERS="<display number>:<user account>"
# VNCSERVERARGS[<number of display>]="-geometry <screen size> -nolisten tcp -nohttpd"

The parameter "VNCSERVERS" indicates a vnc server is started as user <user account> on display ":<display number>". <user account> should be an existing user in the system. You can specify multiple userids to start servers, for example

VNCSERVERS="1:root  10:oracle"

add the password to the user vncserver is started for. Login as the user and run:


vncpasswd

Service Control

This service is handled by init.d script /etc/init.d/vncserver. Its usage is as follows:

# service vncserver
#Usage:

/etc/init.d/vncserver {start|stop|restart|condrestart|status}

You can check if the service is configured to start automatically at boot time:

# chkconfig --list vncserver
#vncserver 0:off 1:off 2:off 3:off 4:off 5:on 6:off

Start the service

service vncserver start

7. Mouse buttons

If you only have a two-button mouse, you may find you are unable to use some Xwindow mouse buttons.
Xwindow provides the ability to change the mapping of the mouse buttons with the "xmodmap" command, for example:

xmodmap -e "pointer = 1 3 2 4 5"

 vncserver akullboz

[root@roswell etc]# service vncserver start 

Starting VNC server:         
[root@roswell etc]#   

[root@roswell etc]# vncpasswd  
Password:   
Verify:   

[root@roswell etc]#  [root@roswell etc]

# vncserver    New 'roswell:1 (root)' desktop is roswell:1    

Starting applications specified in /root/.vnc/xstartup  

Log file is /root/.vnc/roswell:1.log

Updated Mon May 25, 2015 4:02 PM

Added Sun, April 18, 2010 9:24

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