Unix and Linux Tips

Selasa, 14 Juni 2011

Unix Tip: MOUNTING CD'S ON HPUX

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3413 - June 14, 2011

http://www.ugu.com/sui/ugu/show?tip.today

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MOUNTING CD'S ON HPUX

If you want to mount an
ISO 9660 CDROM on HP-UX
or a ISO 9660 CDROM with
RockRidge Interchange Format
you have to start pfs_mountd
and pfsd.

# /usr/sbin/pfs_mountd &
[3] 1969
# /usr/sbin/pfsd &
[4] 1970

Edit or create the file
/etc/pfs_fstab

/dev/dsk/c0t4d0 /ISO_CDROM pfs-iso9660 xlat=unix 0 0
/dev/dsk/c0t4d0 /ISO_RR_CDROM pfs-rrip xlat=unix 0 0

Create the dirs, if they
don't exist

# ls -dl /ISO*
drwxr-xr-x 2 root root 4 Apr 2 20:44 ISO_CDROM
drwxr-xr-x 2 root root 4 Apr 2 20:44 ISO_RR_CDROM

Now it is easy to mount
ISO CDROMs

# pfs_mount /ISO_CDROM
# ls -l /ISO_CDROM
drwxr-xr-x 2 root root 4488 May 6 1988 cdsample
# pfs_umount /ISO_CDROM

Or with long filenames

# pfs_mount /ISO_RR_CDROM
# ls -l /ISO_RR_CDROM
-r--r--r-- 1 root root 4488 Nov 5 19:00 Copyright
dr-xr-xr-x 2 root root 1469 Oct 13 19:01 pictures_from_susi

This tip generously supported by:
tomschit@ti-voyager.fbe.fh-weingarten.de

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Senin, 13 Juni 2011

Unix Tip: OUT PARAMETER FROM ORACLE

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3412 - June 13, 2011

http://www.ugu.com/sui/ugu/show?tip.today

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OUT PARAMETER FROM ORACLE

Ever wanted to execute an
Oracle Procedure which contains
an out parameter, and use the
value returned from the out
parameter in the shell variable.

Try out this. The procedure
test1 adds two nos. and returns
output into the out parameter.

export ORACLE_HOME=< type in your Oracle Home Path >
export ORACLE_SID=< Mention the Oracle SID >
export PATH=$ORACLE_HOME:$ORACLE_HOME/bin:$PATH # This Path
is set to access the sqlplus executable
dummyvar=`sqlplus -s tcon4iqalib/tcon4iqalib <<end
set pagesize 0 feedback off ver off heading off echo off
serverout on
variable verr_mesg number
exec test1(4,5,:VERR_MESG)
print verr_mesg
exit;
end`
echo " Error is " $dummyvar
echo " Result is " $dummyvar
echo $dummyvar

Minggu, 12 Juni 2011

Unix Tip: VI COPING BETWEEN FILES

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3411 - June 12, 2011

http://www.ugu.com/sui/ugu/show?tip.today

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VI COPING BETWEEN FILES

VI editor is a very powerful editor.
Suppose you want to copy
line numbers 1-10 and 23-77 of
file A and paste them on file B at
the same time, what will
you do ?? Here I am giving a tip
to do this :-

Place the cursor on line no. 1
Press ESCAPE
Press Shift "(Shift double quotes)
Press a
Press 10yy [the number of lines you
want to copy]

Now place the cursor on line no. 23
Press ESCAPE
Press Shift "(Shift double quotes)
Press b
Press 55yy [the number of lines you
want to copy]

Now the first 10 lines have been
copied in buffer "a" and next
55 lines have been copied in
buffer "b".

Now press " : " (COLON) to get
the vi prompt.
Hit e "Destination file name"

Once you enter the Destination file
go to the line where you
want the first 10 lines in buffer
"a" to be inserted.

Press ESCAPE.
Press Shift "(Shift double quotes)
Press a.
Press p.

The first 10 lines in buffer "a"
gets inserted.

Now go to the line where you want the
rest 55 lines in buffer
"b" to be inserted.

Press ESCAPE.
Press Shift "(Shift double quotes)
Press b.
Press p.

The rest 55 lines in buffer "b"
gets inserted.

This tip generously supported by: ardhendu99@yahoo.com

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
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Sabtu, 11 Juni 2011

Unix Tip: KILL REALLY DOES NOT KILL

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3410 - June 11, 2011

http://www.ugu.com/sui/ugu/show?tip.today

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KILL REALLY DOES NOT KILL

kill is not really meant only
to kill a process. But main
intention is to send a signal
to process.And the process
handles these signals to do
various tasks.

kill -INT 1234
#where 1234 is the Process ID
is really, this set an
interrupt signal, Ctrl-C is an
example of interupt signal given
to shell.

kill -HUP 1234
#some UNIX daemons handle this,
to do refreshing business.

kill -KILL 1234
This is the sure kill,which
cannot be handled by any process.
Also know as, kill -9 1234.

Just, check the in the file
/usr/include/sys/signal.h for all
signals on the system.

More about this can be found on
kill and signal man pages.

This tip generously supported by: dkotian1@rediffmail.com

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
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