General :: The Maximum Number Of Characters And Rows In A Database?
Apr 18, 2010Is the maximum number of letters a database table column can contain 255?and is it a bad idea to build a table with about 15 columns?
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Security :: Saw A Number Of Clients (customers) With Some Fun Characters Entries On Database?
Feb 16, 2011My Linux server which is running my company website have been hacked. Today I saw a number of clients (customers) with some fun characters entries on my database. Access denial on really clients. Please assist, am running Linux Ubuntu 9 and I dont know where to start troubleshooting this. let me confession that I am still on the learning curve on Linux
View 8 Replies View RelatedGeneral :: Merging Files With Different Number Of Rows Using Awk?
Apr 18, 2011Does anyone have a solution for merging files if the number of rows in the two (or more) files is non-equivalent.To exemplify, how about merging the following 3 files:
file1:
1
2
[code]...
General :: Sed - Csv Averages On Command Line - Take The Average Of All Rows With The Same 1st Number(key)
Jul 20, 2010I have a big file full of records like this
1, 2, 4, 5, 6
1, 3, 5, 6, 3
1, 4, 5, 6, 6
2, 4, 5, 5, 5
2, 3, 4, 5, 2
anyway i need to take the average of all rows with the same 1st number(key). i.e.
1, 3, 4.66, 5.66, 5
2, 3.5, 4.5, 5, 3.5
I know this is something awk/sed would be great for, i just dont have enough experience with them to accomplish it, Also, what about averaging those columns together? so, after I output this to a file, id like to get another like:
1, 4.58
1, 4.125
The number of colums to add might not always be 4 either. EDIT: this might be easier to do in gnuplot, so I mainly just need an answer to the first part.
General :: 'automate' That 'rows Selected' Preceded By Number Is Always Last Line
Jul 22, 2010I'm not that familiar with sed and awk in order to be able to solve this problem on my own, so I'm calling on you for a bit of assistance. I'm writing a Nagios plugin to check our Oracle tablespaces and the output is given in one line like this: 1.04007771 TEMP 0 UNDOTBS1 .005340579 USERS 0 7 rows selected. I've been playing around with sed like below to delete the obsolete info and change every second space into a newline:
[code]...
how many tablespaces there are so I'd have to check all databases and 'hardcode' the tablespaces in my script. Is there any way to 'automate' this knowing that 'rows selected' preceded by a number is always the last line and using a sort of counter to auto-adjust the number to put in the -e 's/ / /2' part?
General :: Determine Number Of Rows And Columns Of File In Shell?
Mar 4, 2010if there's a tab-delimited file under /usr/desktop, how can I determine the number of rows and columns of the file in shell?And, if told the the 3rd column of the file contains only numerical values and all values in the 5th column are unique, how can I verify these in shell?
View 13 Replies View RelatedGeneral :: Write Shell Script Which Can Take Number Of Files And Count Total Rows From All CSVs?
Oct 8, 2010I need to write shell script which can take number of files and count total rows from all CSVs and display total number of rows counted in all files. Is there any possibility of doing that using shell script and if yes then how.
View 4 Replies View RelatedGeneral :: Maximum Number Of Partitions With EFI?
Jul 5, 2011I was wondering what is the maximum number of partition on an GPT-partitionned drive under Linux. The GPT partition table can contain up to 128 partitions, but the device nodes for /dev/sda? (as described here, block device of major number 8) only allow /dev/sda1 up to /dev/sda15. Does that means that there cannot be more that 15 partitions on a drive, even on a GPT-partitionned drive?
View 2 Replies View RelatedGeneral :: Maximum Number Of IPs That Can Be Assigned To A Given Computer?
Jan 11, 2011I really need to know this for a linux server, but since it also applies to client OSes, I figured the question should be posed here instead of server fault.
View 3 Replies View RelatedGeneral :: Maximum Number Of Files Per Folder?
Apr 28, 2011I would like to ask you if there is any maximum allowed number of files per folder in linux (without risking it to lose everything). I am using openuse 11.4 with latest kde (4.6?).
I am trying something fast and dirty and it might be that one folder will contain like 10^6 files.
Is there is anything I should be warned about that?
General :: Find A Ip Address Having Maximum Number Of Ram Available?
Jun 22, 2010I have a file called abc.txt which has following contents.
10.180.8.231=31608
10.180.8.232=29011
10.180.8.233=31606
[code]....
General :: Know Maximum Number Of Logical Partition?
Sep 11, 2009I'd just like to know the max number of logical partitions an extended partition can hold. Is that number different for IDE and SCSI hard drives?
View 11 Replies View RelatedGeneral :: Maximum Number Of NICs That Be Teamed With Redhat 5?
Mar 4, 2010the maximum number of NICs that be teamed with Redhat 5?
View 1 Replies View RelatedGeneral :: Maximum Number Of Clients ReachedThunar: Cannot Open Display
Jul 4, 2011I with one problem to open files on terminal. By example, I open the thunar on terminal, see the error:
gustavo@universe /media/montagem $ thunar
(process:7902): Gtk-WARNING **: Locale not supported by C library.
Using the fallback 'C' locale.
Maximum number of clients reachedThunar: Cannot open display:
gustavo@universe /media/montagem $ ^C
Programming :: Get Number Of Rows And Columns Support In Screen?
Jul 18, 2011In linux terminal; how can we get the number of rows ad columns from linux kernel? I tried from environment variables(LINES,COLUMNS) but, I could not retrieve them as my editor program is a child process to linux terminal process.
View 7 Replies View RelatedGeneral :: Print The Number Of Characters In The File?
Apr 6, 2010# echo "foobar" > /tmp/word
# cat /tmp/word | wc -m
7
I want to print the number of characters in the file. Why does it output 7? Am I missing something obvious?
manpage:
-m, --chars
print the character counts
General :: Regular Expression To Match Unspecified Number Of Characters Until A '>'?
Jul 7, 2010I'm attempting to search through a rather large assortment of html files created in Word using 'save as html'. what I'm trying to do is find and delete these tags (they're causing browsers to display black diamonds with white question marks):
<span style='mso-spacerun:yes'> </span> Tags contain from 1 to 4 spaces between opening and closing. I get positive results from this:
grep <span style='mso-spacerun:yes'> filename.html but once I attempt to tell it to match any number of characters up until the next '>' symbol, it tells me I'm using an invalid regex: grep <span style='mso-spacerun:yes'>[^>]+> filename.html
I've been nose-deep in regex tutorials for the past day or so, and I'm still not understanding why this doesn't work. If I put the pattern (without backslashes) into a separate file and use `grep -f patternfile filename.html`, I get no error but no matches either. So far as I can figure, the above regex boils down to:
Match the string "<span style='mso-spacerun:yes'>", followed by any number of characters that are not a ">", followed by a ">". If someone could tell me where I'm going wrong with this,
Ubuntu :: Maximum Number Of Users?
Jan 7, 2011How many users is it possible to set on Ubuntu 10.10? I have an Edubuntu LTSP system for a school (10 clients) and I wish to setup an user for each student/teacher (about 200).
View 2 Replies View RelatedFedora :: Maximum Number Of Files In Ext3 ?
May 26, 2010Is there a limit to the number of files ext3 can support?
Reason I'm asking is because on one of my internal drives, I have around 750,000 files. The drive is 500Gb and currently using 150Gb... I noticed recently that when I try to copy a new directory or file, the transfer rate is extremely slow at times. It is sataII and sometimes it gets as low as 500kb/s (yes, kb!)
Would somebody please shed some light?
I noticed it might be related to the process gvfsd-metadata
I'm using Fedora 12 64-bit
The transfer is from an ext3 to ext3 filesystem.
Ubuntu :: Getting Maximum Number Of Clients Reached?
Feb 18, 2010In the last week or so, I've frequently been running out of X server client connection slots and getting "Maximum number of clients reached" errors. For example, I'm getting it right now and I'm running 3 pterms, Chrome, and Thunderbird; I've even killed my panel. 'xwininfo -root -children' produces what seems to be an absurd number of X clients (150-ish, when it's able to make a connection), even immediately after Gnome/Xfce startup.
It doesn't take long. A day at most. I've had this system up and running for months, and this just started happening. I did install some X development libraries (x11proto-core-dev, libmotif-dev, x11proto-print-dev, and x11proto-xext-dev plus their dependencies) about two weeks ago, but this problem has not been happening that long. I've installed other packages, but nothing that would seem to have any relation to this problem. I've logged out and in, rebooted, and changed from Gnome to Xfce, and none of the changes helped.
Server :: Maximum Number Of Hard Links?
Dec 8, 2010I have a 32-bit Linux server with an ext3 file system. Is there any kind of upper-limit to the number of hard links I am allowed to use? (Per inode...? Per directory...? Per filesystem...?) And (just out of curiosity) would this be any different if I had a 64-bit machine or a different file system?
View 1 Replies View RelatedSlackware :: X11 - Maximum Number Of Clients Reached
Feb 21, 2011I have done nothing with the system, but starting this morning, i experienced a strange condition on my desktop. I'm unable to open any applications at all. It will close instantly.
When i tried to run from terminal, it will give me an error like this:
Quote:
I checked using
Code:
And i got around 234 which is too much that it takes almost all of the open files allowed. Logging out to text and brings back X will solve the problem, but it's only a temporary solution until X opens more sockets again. I'm running -Current (32 bit)
It seems that there's a hackish solution in here: [url]. Dunno whether it's a nice solution or not, but i'm willing to try it.
Ubuntu :: Increasing Maximum Number Of Applications In Browser?
Dec 28, 2010I just installed maverick on my son's netbook, and so far we like the new unity interface. The main issue is that there seems to be a maximum number of apps that can be listed under any particular category in the applications browser. So for instance when he goes to his "Games" category, it only lists applications up through S (he has a lot of games installed).
So far I haven't found a settings panel for unity. There has to be a way to bump up the maximum.
Software :: What Is Maximum Number Of Bytes Is Possible To Send From Udp Socket?
Oct 1, 2010I am created one udp socket. i want to send the data(bytes) to another PC.i need to send 614400 bytes of data. while sending it saying error like" message is too long ". so what is the maximum possible data can i send from a socket?
View 3 Replies View RelatedCentOS 5 Hardware :: Maximum Number Of CPUs Supported
Oct 29, 2010While searching for the maximum numbers of CPUs supported by CentOS 5 x86_64 I found the following page: [URL]. The question I have regarding the specified information ("64/255" logical CPUs) is, which number means what. Does this mean 64 real CPUs with a maximum of 255 cores/hyperthreaded CPUs or something similar or totally different?
View 4 Replies View RelatedDebian Configuration :: Maximum Number Of Virtual Network Interfaces?
Feb 11, 2010What is the maximum number of virtual network interfaces possible?I would like to create around 300 or so. This is needed to simulate a 300 node network.
View 6 Replies View RelatedOpenSUSE Install :: Maximum Number Of X Display Failures Reached?
May 4, 2009I tried ubuntu for a few weeks, but I couldn't get the nvidia drivers to work, I tried everything. So, I got sick of that, and went to download OpenSuse, which seems to be even nicer (..... ) I downloaded the 11.1 liveCD (gnome) from here. I nicley got the welcome screen, and the option screen (liveCD, check errors etc.). I chose LiveCD and it started booting, I got the splash screen with the loading bar, and after it completely loaded, the screen turns black with a lot of messages and at the end:
Code:
GdmLocalDisplayFactory: Maximum number of X display failures reached: Check X server log for errors.
Great, I hoped for better luck after Ubuntu..
My sys. specs:
Asus F3Sc 32bit
Intel CentrinoDuo
[Code]...
CentOS 5 Hardware :: Maximum Number Of CPUs Supported With 5 X86_64
Jan 31, 2011While searching for the maximum numbers of CPUs supported by CentOS 5 x86_64 I found the following page: [URL] The question I have regarding the specified information ("64/255" logical CPUs) is, which number means what. Does this mean 64 real CPUs with a maximum of 255 cores/hyperthreaded CPUs or something similar or totally different?
View 9 Replies View RelatedFedora :: 14-Maximum Number Of Clients Reached - Unable To Open Display ?
Nov 6, 2010Ever since upgrading to Fedora 14, my system has been almost unusable. I can only have a few windows of anything open before I start getting messages about:
Maximum number of clients reachedMaximum number of clients reachedMaximum number of clients reachedMaximum number of clients reachedxwininfo: unable to open display ':0.0'
I am unable to open any new windows then and lots of programs crash.
When things are still running correctly.
A few minutes later:
CentOS 5 Server :: What Is The Maximum Number Of Logical Volumes In A Volume Group
May 15, 2009what the maximum number of logical volumes is for a volume group in LVM ? Is there any known performance hit for creating a large number of small logical volumes vs a small number of large volumes ?
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