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UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3566 - November 14, 2014
http://www.ugu.com/sui/ugu/show?tip.today
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SHELL SCRIPTING A SQLPLUS SCRIPT
Here is a tip on how to run sqlplus scripts within a shell script.
It is an example of how to pass database values into shell variables
and to make shell scripts more dynamic. This maybe elementary to some
folks but hope it helps others.....Here is the syntax:
#!/bin/sh
dummyvar=`sqlplus -s username/password <<end
set pagesize 0 feedback off ver off heading off echo off
select sysdate from dual;
exit;
end`
echo "system date is " $dummyvar
Jumat, 14 November 2014
Kamis, 13 November 2014
Unix Tip: I SEE YOU WITH FUSER
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UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3565 - November 13, 2014
http://www.ugu.com/sui/ugu/show?tip.today
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I SEE YOU WITH FUSER
In System V, you can use the following command to see who is accessing
a particular file system:
fuser <file system>
For example, to see who is accessing the /cdrom directory:
fuser /cdrom
This command is useful if you wish to unmount a file system but the system
is unable to do so because it is being used.
This tip generously supported by: anthony-leong@usa.net
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3565 - November 13, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
I SEE YOU WITH FUSER
In System V, you can use the following command to see who is accessing
a particular file system:
fuser <file system>
For example, to see who is accessing the /cdrom directory:
fuser /cdrom
This command is useful if you wish to unmount a file system but the system
is unable to do so because it is being used.
This tip generously supported by: anthony-leong@usa.net
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
Rabu, 12 November 2014
Unix Tip: GLOBAL SYSTEM PATH SETTINGS
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UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3564 - November 12, 2014
http://www.ugu.com/sui/ugu/show?tip.today
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GLOBAL SYSTEM PATH SETTINGS
Cross-Platform System Administration Tip
If you want to set a system path that will apply to all users,
regardless of which shell they use, edit the following file:
For Solaris: /etc/default/login
For HP-UX: /etc/PATH
For AIX: /etc/environment
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3564 - November 12, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
GLOBAL SYSTEM PATH SETTINGS
Cross-Platform System Administration Tip
If you want to set a system path that will apply to all users,
regardless of which shell they use, edit the following file:
For Solaris: /etc/default/login
For HP-UX: /etc/PATH
For AIX: /etc/environment
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
Selasa, 11 November 2014
Unix Tip: KILLING ALL USER PROCESSES
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UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3563 - November 11, 2014
http://www.ugu.com/sui/ugu/show?tip.today
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KILLING ALL USER PROCESSES
The common method for killing all of a users processes
usually involves grepping the users name from 'ps', then
using awk to get the process id's and submitting them
to 'kill -9'.
Sys V
ex: kill -9 $(ps -fuusername | awk '{ print $2 }' )
BSDish
ex: kill -9 $(ps -aux |grep username | awk '{ print $2 }' )
The problems with doing this way are that it is slow, and
more importantly, it doesn't always kill all of the processes
on the first try.
There is a way to do this that always kills all of the users
processes the first time, and is very fast:
su - username -c 'kill -9 -1'
This tip generously supported by: jkstill@teleport.com
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3563 - November 11, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
KILLING ALL USER PROCESSES
The common method for killing all of a users processes
usually involves grepping the users name from 'ps', then
using awk to get the process id's and submitting them
to 'kill -9'.
Sys V
ex: kill -9 $(ps -fuusername | awk '{ print $2 }' )
BSDish
ex: kill -9 $(ps -aux |grep username | awk '{ print $2 }' )
The problems with doing this way are that it is slow, and
more importantly, it doesn't always kill all of the processes
on the first try.
There is a way to do this that always kills all of the users
processes the first time, and is very fast:
su - username -c 'kill -9 -1'
This tip generously supported by: jkstill@teleport.com
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
Senin, 10 November 2014
Unix Tip: NFS HANG FIX ON HP-UX
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UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3562 - November 10, 2014
http://www.ugu.com/sui/ugu/show?tip.today
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NFS HANG FIX ON HP-UX
In an NFS environment (Hp-UX based), sometimes no user is
able to log-in when home directories are mounted using automounter).
As user validation occurs, the user .profile is executed but no shell
prompt appears unless the user presses CTRL-C.
The Solution to this is to kill the portmap & inetd and restart
the two daemons. The problem will then be sorted out.
This tip generously supported by: sgogia@hss.hns.com
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3562 - November 10, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
NFS HANG FIX ON HP-UX
In an NFS environment (Hp-UX based), sometimes no user is
able to log-in when home directories are mounted using automounter).
As user validation occurs, the user .profile is executed but no shell
prompt appears unless the user presses CTRL-C.
The Solution to this is to kill the portmap & inetd and restart
the two daemons. The problem will then be sorted out.
This tip generously supported by: sgogia@hss.hns.com
--------------------------------------------------------------------------
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To Submit A Tip: http://www.ugu.com/sui/ugu/show?tip.today
==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
Minggu, 09 November 2014
Unix Tip: REGEXP MATCHING IN AWK
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UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3561 - November 9, 2014
http://www.ugu.com/sui/ugu/show?tip.today
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REGEXP MATCHING IN AWK
If you ever find yourself typing "command | grep pattern | awk '{print $3}'
you can shorten this by using the regexp matching in awk, like this:
command | awk '/pattern/{print $3}'
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3561 - November 9, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
REGEXP MATCHING IN AWK
If you ever find yourself typing "command | grep pattern | awk '{print $3}'
you can shorten this by using the regexp matching in awk, like this:
command | awk '/pattern/{print $3}'
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
Sabtu, 08 November 2014
Unix Tip: Public Relations
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UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3560 - November 8, 2014
http://www.ugu.com/sui/ugu/show?tip.today
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Public Relations
One of the best things an admin can do
is to have good public relations with
the user community.
Don't just be there when problems arise.
Go out to the user community when things are
working. High visibility is the key.
If the users see you around and there are no
problems they will believe that you care to
take the time for them.
Try not to let the users always go come to you.
Go to those users that you never here from
The perfect users, the ones that leave you
alone. Often the don't have an understanding
of what you can do for them.
I know many will say, "I don't have time!"
Just a calm walk through a department is
really all it takes, sometimes you never
have to stop.
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3560 - November 8, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Public Relations
One of the best things an admin can do
is to have good public relations with
the user community.
Don't just be there when problems arise.
Go out to the user community when things are
working. High visibility is the key.
If the users see you around and there are no
problems they will believe that you care to
take the time for them.
Try not to let the users always go come to you.
Go to those users that you never here from
The perfect users, the ones that leave you
alone. Often the don't have an understanding
of what you can do for them.
I know many will say, "I don't have time!"
Just a calm walk through a department is
really all it takes, sometimes you never
have to stop.
--------------------------------------------------------------------------
To Subscribe: http://www.ugu.com/sui/ugu/show?tip.subscribe
To Unsubscribe: http://www.ugu.com/sui/ugu/show?tip.unsubscribe
To Submit A Tip: http://www.ugu.com/sui/ugu/show?tip.today
==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
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