02-12-2010
Linux: Software RAID using mdadm and/or LVM
(Open)Solaris: ZFS Pool
FreeBSD: VVM (Vinum Volume Manager)
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
This is related to one of my previous post but now with a slight difference: I need the "Updated:" to be in one line as well as the "Information:" on one line as well. These are in multiple lines right now as seen below. These can have 2 or more lines that needs to be in one line.
System name:... (8 Replies)
Discussion started by: The One
8 Replies
2. Shell Programming and Scripting
Hi gurus,
I need to manipulate the output of a database query. The output contains 2 fields (asset and serial number) and I'd like to combine them into a single value, seperated by whitespace.
the orginal data is in seprate fileds and of the following format:
asset serial
asset serial
etc ... (6 Replies)
Discussion started by: melias
6 Replies
3. Shell Programming and Scripting
I have 2 files: phone.txt and mobile.txt
ex. phone.txt
MOBILENO|DISABLE_DATE
919687877754|9/1/2011|
919687877762|9/1/2011|
919687880573|9/1/2011|
919687882658|9/2/2011|
Ex. mobile.txt
MOBILENO |TIME
919687880573|2011-09-17 12:23:40|
919687882658|2011-10-10 21:15:33|... (4 Replies)
Discussion started by: khingx
4 Replies
4. Shell Programming and Scripting
i have below list of files in a directory.
/root/admin/files/file1.txt
/root/admin/files/file2.txt
/root/admin/files/file3.txt
/root/admin/files/pattern.txt
/root/admin/files/server.txt
i need combine the above text files in the below sequence,
file1.txt, pattern.txt,server.txt =>... (8 Replies)
Discussion started by: vel4ever
8 Replies
5. Shell Programming and Scripting
Hi All,
I am newbie to linux. Can somebody help me with following requirement.
I have one huge line. I have to find out particular key/value pair to see the distinct value of that key.
Portion of the String:-
<?xml version="1.1" encoding="UTF-8"?> <Data><Val Ti="1342750845538" Du="0"... (5 Replies)
Discussion started by: kmajumder
5 Replies
6. Shell Programming and Scripting
I am trying to combine 4 .dat files into one single Output file
Inputs are:- file123.dat, file256.dat, file378.dat & file490
Expected Output:-
FileName=file1
{text from file1}
EOF
{blank line}
FileName=file2
{text from file2}
EOF
{blank line}
FileName=file3
{text from file3}
EOF... (4 Replies)
Discussion started by: lancesunny
4 Replies
7. Shell Programming and Scripting
Hi Experts
Please help me out with the following thing:
2 files and want the output file: {No for using FOR loop because I got 22 million lines}
Tried that "It processes only 8000 records per hour"
I need a faster way out !!!
FileA:
9051
9052
9053
9054
9055
9056
9057
9058
9059
... (5 Replies)
Discussion started by: navkanwal
5 Replies
8. Shell Programming and Scripting
Hi All ,
I have a file with below data
# User@Host: xyz @
# Query_time: t1 Lock_time: t2 Rows_sent: n1 Rows_examined: n2
SET timestamp=1396852200;
select count(1) from table;
# Time: 140406 23:30:01
# User@Host: abc @
# Query_time: t1 Lock_time: t2 Rows_sent: n1 Rows_examined:... (6 Replies)
Discussion started by: rakesh_411
6 Replies
9. UNIX for Dummies Questions & Answers
Checklist
1.1; Contains Solaris
1.2; Contains Patches
1.3; <no output>
1.3.1; <no output>
Output1
1.1 Solaris 10 8/07 s10s_u4wos_12b SPARC
1.2 Patch: 127714-03 Obsoletes: Requires: 120011-14 Incompatibles: Packages: SUNWsshcu, SUNWsshdu, SUNWsshu Patch: 128253-01 Obsoletes:... (5 Replies)
Discussion started by: alvinoo
5 Replies
10. UNIX for Beginners Questions & Answers
My CSV file looks similar to this example (the K, L, and M are in the same cell as J but each on a new line within that cell):
1, A, B, C, D
2, E, F, G, H
3, I, J N, O,
K
L
M,
4, P, Q, R, S
I would like to have it look like this:
1, A,... (6 Replies)
Discussion started by: Kim Ashby
6 Replies
LEARN ABOUT REDHAT
reboot
HALT(8) Linux System Administrator's Manual HALT(8)
NAME
halt, reboot, poweroff - stop the system.
SYNOPSIS
/sbin/halt [-n] [-w] [-d] [-f] [-i] [-p] [-h]
/sbin/reboot [-n] [-w] [-d] [-f] [-i]
/sbin/poweroff [-n] [-w] [-d] [-f] [-i] [-h]
DESCRIPTION
Halt notes that the system is being brought down in the file /var/log/wtmp, and then either tells the kernel to halt, reboot or poweroff
the system.
If halt or reboot is called when the system is not in runlevel 0 or 6, in other words when it's running normally, shutdown will be invoked
instead (with the -h or -r flag). For more info see the shutdown(8) manpage.
The rest of this manpage describes the behaviour in runlevels 0 and 6, that is when the systems shutdown scripts are being run.
OPTIONS
-n Don't sync before reboot or halt.
-w Don't actually reboot or halt but only write the wtmp record (in the /var/log/wtmp file).
-d Don't write the wtmp record. The -n flag implies -d.
-f Force halt or reboot, don't call shutdown(8).
-i Shut down all network interfaces just before halt or reboot.
-h Put all harddrives on the system in standby mode just before halt or poweroff.
-p When halting the system, do a poweroff. This is the default when halt is called as poweroff.
DIAGNOSTICS
If you're not the superuser, you will get the message `must be superuser'.
NOTES
Under older sysvinit releases , reboot and halt should never be called directly. From release 2.74 on halt and reboot invoke shutdown(8) if
the system is not in runlevel 0 or 6. This means that if halt or reboot cannot find out the current runlevel (for example, when
/var/run/utmp hasn't been initialized correctly) shutdown will be called, which might not be what you want. Use the -f flag if you want to
do a hard halt or reboot.
The -h flag puts all harddisks in standby mode just before halt or poweroff. Right now this is only implemented for IDE drives. A side
effect of putting the drive in standby mode is that the write cache on the disk is flushed. This is important for IDE drives, since the
kernel doesn't flush the write-cache itself before poweroff.
The halt program uses /proc/ide/hd* to find all IDE disk devices, which means that /proc needs to be mounted when halt or poweroff is
called or the -h switch will do nothing.
AUTHOR
Miquel van Smoorenburg, miquels@cistron.nl
SEE ALSO
shutdown(8), init(8)
Nov 6, 2001 HALT(8)