=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3559 - November 7, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
CLEANUP AT LOGOUT
The following c-shell .logout script will clear your Netscape
cache. No action will be taken if Netscape is current running.
------------------- CUT HERE ------------------------------
#!/bin/csh
if !( `ps -eu $USER | grep netscape | grep -v grep | sed -e 's/^ *//' -e 's/ .*//'` ) then
echo
echo "Clearing Netscape cache..."
\rm -rf ~/.netscape/cache/*
endif
echo
echo "Exiting..."
------------------- CUT HERE ------------------------------
This tip generously supported by: rb237@phy.cam.ac.uk
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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
==========================================================================
Jumat, 07 November 2014
Kamis, 06 November 2014
Unix Tip: SPEED UP INTERACTION TIME
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3558 - November 6, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
SPEED UP INTERACTION TIME
One way to speed up the interaction time of
a shell (that does not hash its commands)
that you may overlook is to modify your path.
The order of the directories in your path
should rely on the number of commands you use
most. So /usr/bin or /bin would probably be first.
Very large directorys that are mounted over
the network should be later in the list. If
there are some directories in your path you only
use for one or two commands consider making an
alias or shell script (if your shell doesn't
support aliases) which calls the program with its
full path name.
Watch out when sourcing files, especially when
your root. It could modify your path and make
you run something detrimental to your system.
Getting into the habit of using full pathnames
is the key here.
This tip generously supported by: kevin@ti.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 3558 - November 6, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
SPEED UP INTERACTION TIME
One way to speed up the interaction time of
a shell (that does not hash its commands)
that you may overlook is to modify your path.
The order of the directories in your path
should rely on the number of commands you use
most. So /usr/bin or /bin would probably be first.
Very large directorys that are mounted over
the network should be later in the list. If
there are some directories in your path you only
use for one or two commands consider making an
alias or shell script (if your shell doesn't
support aliases) which calls the program with its
full path name.
Watch out when sourcing files, especially when
your root. It could modify your path and make
you run something detrimental to your system.
Getting into the habit of using full pathnames
is the key here.
This tip generously supported by: kevin@ti.com
--------------------------------------------------------------------------
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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
==========================================================================
Rabu, 05 November 2014
Unix Tip: AWK QUICK COLUMNS
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3557 - November 5, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
AWK QUICK COLUMNS
Most of the time when you use awk from the command line,
you're doing something simple like this:
ps -ef | grep netscape | awk '{print $2}'
To save typing, use this script when you only want to
use awk to print out one or more columns:
------------------- CUT HERE ---------------------------
#!/bin/ksh
# awkc - print out one or more columns
p=\$$( echo $1 | sed 's/,/,\$/g' )
shift
eval "awk '{ print $p }'" $*
# eof
------------------- CUT HERE ---------------------------
Now you can do things like:
ps -ef | awkc 2,1
or
awkc 1,2,3 /var/adm/messages*
This tip generously supported by: kbeer@dbna.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 3557 - November 5, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
AWK QUICK COLUMNS
Most of the time when you use awk from the command line,
you're doing something simple like this:
ps -ef | grep netscape | awk '{print $2}'
To save typing, use this script when you only want to
use awk to print out one or more columns:
------------------- CUT HERE ---------------------------
#!/bin/ksh
# awkc - print out one or more columns
p=\$$( echo $1 | sed 's/,/,\$/g' )
shift
eval "awk '{ print $p }'" $*
# eof
------------------- CUT HERE ---------------------------
Now you can do things like:
ps -ef | awkc 2,1
or
awkc 1,2,3 /var/adm/messages*
This tip generously supported by: kbeer@dbna.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
==========================================================================
Selasa, 04 November 2014
Unix Tip: MONITORING ROOT IN THE PASSWORD FILE
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3556 - November 4, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
MONITORING ROOT IN THE PASSWORD FILE
One of the popularly known method of breaking into a Unix host
is by inserting a uid value 0 in the /etc/passwd file which could
be done in many ways including backdoors for later accesses .
The script below displays warning messages on the console if
such changes a detacted. Simply place the script in the crontab
and run as frequent as you wish.
------------------------------CUT HERE-----------------------------------------
for id in `awk 'FS=":" {if(($3 == 0 && $1 != "root" )) print $1}' /etc/passwd`
do
cat << the_end >/dev/console
+----------------------------------------------------------------
|
| `date "+Detacted On Date :%D Time :%r"`
| Break-in ALERT! Login ID `echo ${id}` has uid 0
|
+----------------------------------------------------------------
the_end
done
------------------------------CUT HERE-----------------------------------------
--------------------------------------------------------------------------
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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 3556 - November 4, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
MONITORING ROOT IN THE PASSWORD FILE
One of the popularly known method of breaking into a Unix host
is by inserting a uid value 0 in the /etc/passwd file which could
be done in many ways including backdoors for later accesses .
The script below displays warning messages on the console if
such changes a detacted. Simply place the script in the crontab
and run as frequent as you wish.
------------------------------CUT HERE-----------------------------------------
for id in `awk 'FS=":" {if(($3 == 0 && $1 != "root" )) print $1}' /etc/passwd`
do
cat << the_end >/dev/console
+----------------------------------------------------------------
|
| `date "+Detacted On Date :%D Time :%r"`
| Break-in ALERT! Login ID `echo ${id}` has uid 0
|
+----------------------------------------------------------------
the_end
done
------------------------------CUT HERE-----------------------------------------
--------------------------------------------------------------------------
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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, 03 November 2014
Unix Tip: CREATE YOUR OWN GROUP ALIASES
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3555 - November 3, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
CREATE YOUR OWN GROUP ALIASES
If you want to create an alias for a group of people with
similar interests, on your workstation (Say a SUN
workstation), then include the following line at the end
of the file /etc/aliases and run the command /bin/newaliases
unixtips: bhavin@foobar.com, atulk@foobar.com, virajpikle@mail.com
Now, an e-mail sent to
alias_name@workstation_name.foobar.com
will be bounced to the addresses listed above in the
/etc/aliases file.
In other words, if my workstation name is "soorya",
an e-mail sent to
unixtips@soorya.foobar.com
will be bounced to
bhavin@foobar.com,
atulk@foobar.com, and
virajpikle@mail.com
This tip generously supported by: bhavin@informix.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 3555 - November 3, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
CREATE YOUR OWN GROUP ALIASES
If you want to create an alias for a group of people with
similar interests, on your workstation (Say a SUN
workstation), then include the following line at the end
of the file /etc/aliases and run the command /bin/newaliases
unixtips: bhavin@foobar.com, atulk@foobar.com, virajpikle@mail.com
Now, an e-mail sent to
alias_name@workstation_name.foobar.com
will be bounced to the addresses listed above in the
/etc/aliases file.
In other words, if my workstation name is "soorya",
an e-mail sent to
unixtips@soorya.foobar.com
will be bounced to
bhavin@foobar.com,
atulk@foobar.com, and
virajpikle@mail.com
This tip generously supported by: bhavin@informix.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, 02 November 2014
Unix Tip: KILL X
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3554 - November 2, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
KILL X
Quick way to close your X login session (for SysV)
for PID in `ps -u$USER | grep "fv[wm]" | awk '{print $1}'`; do kill -9 $PID; done
Or throw it into a shell script:
--- cut here ---
#!/bin/sh
for PID in `ps -u$USER | grep "fv[wm]" | awk '{print $1}'`; do
kill -9 -$PID
done
--- cut here ---
(the [] conceal the grep from ps, which would mean it would
kill itself before doing anything useful. as written up,
it looks for fvwm's process, which is the window manager I
use; rewrite it as needed i.e. for Motif - mwm,
Open Look - olwm, etc.)
Write this up in a shell script contained in your $PATH
or alias it and you're cooking with gas.
This tip generously supported by: klaus@imprint.uwaterloo.ca
--------------------------------------------------------------------------
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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.
Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3554 - November 2, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
KILL X
Quick way to close your X login session (for SysV)
for PID in `ps -u$USER | grep "fv[wm]" | awk '{print $1}'`; do kill -9 $PID; done
Or throw it into a shell script:
--- cut here ---
#!/bin/sh
for PID in `ps -u$USER | grep "fv[wm]" | awk '{print $1}'`; do
kill -9 -$PID
done
--- cut here ---
(the [] conceal the grep from ps, which would mean it would
kill itself before doing anything useful. as written up,
it looks for fvwm's process, which is the window manager I
use; rewrite it as needed i.e. for Motif - mwm,
Open Look - olwm, etc.)
Write this up in a shell script contained in your $PATH
or alias it and you're cooking with gas.
This tip generously supported by: klaus@imprint.uwaterloo.ca
--------------------------------------------------------------------------
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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, 01 November 2014
Unix Tip: ALTERNATIVE TO CP
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
UNIX GURU UNIVERSE
UNIX HOT TIP
Unix Tip 3553 - November 1, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
ALTERNATIVE TO CP
Define the following alias:
tar cvf - . | ( cd \!* ; tar xvf - )
or as an alias:
alias cpbytar 'tar cvf - . | ( cd \!* ; tar xvf - )'
(The alias definition above is for CSH)
To do a recursive copy of a directory to another location,
preserving the PERMISSIONS and OWNERSHIP of the files.
"cd" to the source location and invoke the following alias
cpbytar <destination_directory>
This tip generously supported by: bhavin@informix.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 3553 - November 1, 2014
http://www.ugu.com/sui/ugu/show?tip.today
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
ALTERNATIVE TO CP
Define the following alias:
tar cvf - . | ( cd \!* ; tar xvf - )
or as an alias:
alias cpbytar 'tar cvf - . | ( cd \!* ; tar xvf - )'
(The alias definition above is for CSH)
To do a recursive copy of a directory to another location,
preserving the PERMISSIONS and OWNERSHIP of the files.
"cd" to the source location and invoke the following alias
cpbytar <destination_directory>
This tip generously supported by: bhavin@informix.com
--------------------------------------------------------------------------
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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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