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0
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1answer
33 views

Is there a standalone tool which will write reports from CSV data files

I download CSV files (e.g. my bank account transactions) and would like to build reports (to print) from the data. I have searched and found several report writer libraries, but all would force me to ...
2
votes
1answer
32 views

Ways to store data for command line API

I am developing an API in Unix environment for virtual machines. I have to store some information in a table about virtual machines. Currently I am using python dictionary of virtual machine objects ...
3
votes
2answers
183 views

Script using “split” in a loop over large files

I'm attempting to get a bash script working, and running into terrible errors along the way. The aim of the script is to break several large text files, into multiple files with a line count read from ...
2
votes
1answer
61 views

LibreOffice Calc Didn't Read Data with a formula (Error?)

So I have a data like this : (First Number) (=RIGHT(A1, 3)) 19132 132 56112 112 So, the second column formula is =RIGHT(A1,3) and so on. When I created the graph, it's show zero data, there are no ...
1
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3answers
5k views

NFS Automatic Fail-over or Load-balanced or Clustering?

I've been using NFS (and it is the only one i know well in Network Files) for a few years. But still can not able to find out .. How to make NFS Servers in Clustered Design (or Load-balanced?) Or at ...
-4
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2answers
97 views

What is the utility of piping to `/dev/null`?

Seeing that /dev/null's utility isn't immediately obvious to me, what is the use of /dev/null piping?
0
votes
0answers
24 views

Recover directory structure + files [duplicate]

Background: I had a dual boot of Windows + Linux Mint. Mint didn't feel right to me, so I decided to install Ubuntu to replace Mint. I booted from a Ubuntu Live USB and started the installer. The ...
0
votes
0answers
31 views

Replication data in SAN

I am using openfiler as SAN. Then I create a disk in SAN using ISCSI. I have 2 CentOS client machines connect to SAN disk. When I create data in client1 machine, It doesn't update to client2 ...
1
vote
0answers
38 views

Send big data with dsmigratedata command

I want send data to remote server using this command but I dont know what is the syntax is that I can use for this command... I'm using the command: $ dsmigratedate -s user@remoteip -p 22 password ...
1
vote
2answers
299 views

how to calculate the average value of the column(big number of columns) that have the row ID?

I want to calculate the average value of my data when they have the same ID in the first column. I want to calculate the average values for the remaining columns that have the same value in the first ...
6
votes
2answers
248 views

Personal health records software

Does anybody know personal health records software for Linux? I want to record blood pressure, pulse, temperature, feel to analyze later. I will write information manually, as my measuring ...
3
votes
1answer
388 views

Can zfs resilvering destroy data with misreported device failures?

I have had a situation where I am moving data into a new zfs raidz pool with four devices, some of them virtual to facilitate the migration. The system completely hung in the middle of a device ...
1
vote
1answer
69 views

how to look the value of thedata by lookup index? [duplicate]

I have list of data array which I want to look the values by its index (id) and store to the index id from the data array. I can do it in spreadsheet VALUE LOOKUP function, but I still have lots of ...
1
vote
2answers
268 views

how to multiply column of one file by column of anothe file?

I want your help in multiplying columns of one file by column of other another file where both files have the same number of columns and rows. I want the script to multiply the first column of the ...
1
vote
3answers
1k views

Recover Windows partition in a GPT disk (previously MBR)

I have tried installing Arch Linux and what I ended up with was a partition scheme like this: /dev/sda: /dev/sda1 NTFS partition (Windows 7) /dev/sda2 ext4 (Arch) /dev/sda3 swap I don't know ...
3
votes
1answer
349 views

What are potential consequences of going nuts with sparse file based vdevs for a LVM to ZFS migration?

I've been playing around with ZFS having finally accepted that it's mature enough I shouldn't get burned. Now to migrate the home NAS box which is currently an LVM JBOD set up that's quite full, but ...
10
votes
2answers
16k views

How to mount a disk from destroyed raid system?

I have a horrible situation where I have to restore data from damaged raid system in a rescue Debian Linux. I just want to mount them all to /mnt/rescue in read only modus to be able to copy VMWare ...
1
vote
1answer
512 views

Is there a way to store mail attachments outside of mailboxes?

Nowadays, size limits on mail attachments are less comprehensible by traditional users. I am looking for a way to extract mail attachments as simple files that I would be able to manage elsewhere. On ...
1
vote
1answer
22 views

See latest added data in MySQL DB, Debian

Is there any way I - via any commmand - can see which data have last been added to a MySQL DB and when that data was added? Dist: Debian 7.0 (wheezy)
3
votes
1answer
161 views

How to place big file on two disks without splitting?

I have a file 100gb in size and a server with two 72gb disk's. The server runs Ubuntu Linux, with ext4 on the disks, and without LVM. How I can put the 100gb file on the server with 72+72gb disk's? ...
3
votes
2answers
549 views

Extract Data between comma

I have an output file which contains different numbers seperated by commas. But the issue is I do not know the number of commas. I would in turn like this data to be grep on another file. For ...
3
votes
2answers
1k views

AWK : Converting Row Formated Data into Columnar

I have a dataset as such: Name: Jim Bean Vice: Dice ID: AFDSDFDSFDSFASFA LoginTime: 12343314 Name: Bob Dylon Vice: Trumpets ID: AFD232SFDSFASFA LoginTime: 12343314 ...
1
vote
1answer
130 views

What happens to data copied after undoing fdisk?

Suppose I have some drive with a single partition. For some reason I decide to repartition it, using fdisk. I create multiple partitions, then write the partition table, then exit fdisk. At this ...
3
votes
2answers
7k views

xmllint display values of more than 1 attributes in single execution

I am using xmllint to parse xml file which has several tags and each tag has several attributes. Sample structure as shown below: <root> <child attr1="abc" attr2="def" attr3="ghi" /> ...
4
votes
1answer
164 views

od emulation for directories

I was wondering why od(1) used to work in UNIX but doesn't work in GNU/Linux. There is a nice answer on serverfault. The next question is, are you aware of any tools that can emulate od behavior to ...