i have a small script that takes the time in seconds(this is a very long number like 615.232145457577) and i convert it to minutes or hours by dividing by 60 or 3600 respectively. I would like to be able to get the result with maybe upto to 2 decimal values.
If i do echo "613.568787987975 / 3600" |bc -l
this gives: .17043577444110416666
How can i just get .17
snappy title to grab attention. maybe not stupid, but bleeding difficult to use, talk about a non-obvious, non-intuitive interface; I want to enter a hex value, and have the calculator convert that to decimal. So, I use the pull-down, choose 'hexadecimal', enter the hex value, then change the pull down to 'decimal', expecting to see the decimal (base 10) value. What do I see? The display just adds the hexadecimal base to the end of the hex value I just wrote! Where's my decimal (base 10) number damn it? I can't for the life of me work it out.
View 4 Replies View RelatedCan anyone specify the methods how to add decimal numbers in Linux
View 5 Replies View RelatedCode:
#!/bin/bash
echo 'obase=2;10'|bc
[code]...
I get this:
0000000 1202 0 0 0 0 0 0 0
0000020 141 89 63 89 141 0 0 0
[code]....
How to go from decimal to numerical values?
I just noticed there doesn't seem to be a decimal point button on the calculator (gcalctool 5.32.0) when it is in programming mode. I'm using Fedora 14 (32-bit).
View 4 Replies View RelatedI have a script that creates a textfile with ip addresses and ports, but the ports are in hex format so they need to be converted.
Currently I have this code:
Code:
I'd like to have the second column in decimal instead of hex, like this:
Code:
Is there any way to do that with awk, preferably in a oneliner? Would printf be an option?
I have a script in the works that reads an MP3 file and gets the track length. Trouble is, it gives me the total seconds, like this:
Sample Track.mp3 = 225.55 seconds
What I'd like to have is that 225.55 converted into minutes:seconds format (in this case, 3:45). How can I do this?
I just need to perform a simple operation of subtracting two numbers - that aren't whole numbers, i.e 200.56 - 67.24attempting to use expr i merely get "expr: non-numeric argument"
View 3 Replies View RelatedI'm writing an if statement where a variable is a number such as 14.05 (this is actually a temperature) and I want to compare it to a predefined value, sample code below:
Code:
I have all sorts of errors regardless of how I do this (double quotes, square brackets). The best idea I've had is stripping off the decimal place so it's a 4 digit number (e.g warning=1503 and DEV_TMP=1405) however this seems a little unnescessary and I'm sure there's an easier way of achieving the same thing.
How would I rename all files with a leading decimal point recursivley? I some how got all my music files to have a decimal point.I tried the below and got a " sed argument to long".[CODE]find /media/MUSIC -type f -name "*.wma" | xargs -0 sed -i 's/.(.*)/1/'[CODE]
Another question, can i just use -type f with out -name ? I am sure that all the files got the decimal point added as the first character.
My Ubuntu system is occasionally becoming very sluggish. I'm running many things simultaneously and it's very difficult to tell which program is the culprit.
I suspect that the sluggishness is due to disk activity since the CPU usage is consistently under 50% on each of the 4 cores of the CPU, and over 30% of the 6GB of RAM are free.
Is there a tool that can show me in real time the number of disk IO operations per second and the amount of data read/written per second? Can all this info be broken down and displayed per process?
I want to write a shell script, so that at 9AM every morning a general will be sent automatically to my network users E-Mail ID. My users are as follows: akhtaruzzaman@a[URL], ariful.[URL] etc.
Below is my little effort:
# !/bin/bash
userlist=`cut -f 1 -d : /etc/passwd`
mail -s "mailbackup" << END
keep mailbackup in another drive daily for security purpose
I'm using my Linux (SLES 10) server as a File Server at this point. I need to set File Permissions to nested folders differently to different groups. For example:
homesharedengineering* should be read only for groupA
homesharedengineeringadmin should be read & write for groupB Plus read only for groupA
homesharedengineeringautocad should be read & write for groupC Plus read only for groupA
I've been using Webmin and Putty to set permissions but Putty only allows me the Default Group, it won't allow me to set several groups on the same directory. Webmin seems to allow me to add multiple groups (Webmin --> Others --> File Manager --> Info & ACL tab will provide extended abilities) but when I add multiple groups, they don't seem to take effect? I'm wondering if my setup at the 'Share' level or at the hierarchy of my folder structure (unix based) needs to be set specifically?
I have Windows 7 on my Dell Xps laptop, and I want to install Ubuntu or Fedora as a dual-boot. Will that cause my system to slow down?
View 2 Replies View RelatedPackageKit is a system designed to make installing and updating software on your computer easier. The primary design goal is to unify all the software graphical tools used in different distributions, and use some of the latest technology like PolicyKit to make the process suck less.
View 1 Replies View RelatedII'm a front-end web developer, I've always developed on Windows with technologies like XHTML, CSS, Javascript and Flash, I've dabbled with PHP and MySQL. I am well used to Windows workflows and tools, from Photoshop to Notepad++, Filezilla and WAMP server stacks to After Effects, and a swathe more - but always on Windows.I'm at a point where I think I need to start seriously developing on a Linux box, specifically at the moment to create web apps based on Node.js, but compiling tools and programs has become a task I'm more frequently required to do.
My question? I need to get my hands on a user-friendly install of Linux, but which one? I need common interface developer tools (lists welcome) to replace... well as many tools I have on Windows as possible.I need to be readily connected to the internet, I need OS updates to not destroy my workflow by crashing the OS, as I've seen Ubuntu do to various friends. I want efficiency, I need to be able to customise what I need to in order to perform development tasks.I guess this could be a long list, but - I don't have practical working knowledge of the Linux OS, nor how it "compares" to Windows (excuse my faux pas). I'm obviously willing to learn, but I'm far, far more keen to just... continue interface development, just on Linux instead of Windows.
A friend of mine helped me set up a server which includes Squirrel Mail.It?s CentOS 5.3.I have a person who would like to access Squirrel Mail at remote sites.My questions is, I can create an account on the server which has KDE and the usual general applications and he would have the remote access Squirrel Mail but he doesn?t need nor does he want to access KDE or anything else on my server. He just want an account so he can use Squirrel Mail.
View 1 Replies View RelatedI have the impression that not that many people understand the scope and limitations of GNU General Public License. This is somehow my basic understanding of it. If I take a program covered under the GNU license, first of all I have the right to get the source code. Second, I can modify it at will. Third, I can redistribute it as will too but the new code will necessarily will have the same GNU license. This made me wonder how people actually can charge for software derived from Linux, for instance, Red Hat. Well, my impression is that they really make profit only out of services. In this thread [URL] I think I found a lot of confusion, even from a moderator (not intended to offend). Red Hat is based on Linux and it is necessarily covered under GNU. Somebody probably bought the program from RHE and can make it available at no cost.
Nevertheless, the moderator decided to warn the user. In this article [URL] it says the following:"Our training is not designed to promote vendor lock-in. Though these courses are based on Red Hat Enterprise Linux, the source code for [RHEL] is available to the community via the GPL [GNU General Public License]," said Red Hat spokewoman Leigh Day. This thread [URL] shows yet more confused people. Is there is a glitch in this type of license that prevents programs like RHEL to be redistributed for free? Why their license page doesn't mention GNU license? Or the problem is just that people get overwhelmed by this license and are afraid to be penalized and get paralyzed? By the way, RHEL is just the example. The key question is about the license!!
I need to allow certain users (who do not have root access) to be able to stop and start specific daemons
View 2 Replies View RelatedWhat is the general opinion of the Mandriva and Debian distros? Mainly asking what kind of user you consider the distro to be for (beginners, advanced, total newb, whatever), and whether you think they offer as much to an extremely experienced user as they would to a newb.Those are my two favorite distros, and I really like Mandriva a lot. I'm trying to pick one to stick with throughout, but I'm not really sure if Mandriva is too automated and Windows-user oriented like Ubuntu (I haven't really delved into the deeper aspects of Linux so I have zero experience in this area now). This might sound a little elitist but I don't want to be using Mandriva and just be automatically dismissed as a newb on first impression just because I'm using Mandriva (although admittedly I am a bit of a newb at the moment, I don't plan on staying one).
View 4 Replies View RelatedIm trying to get a general understanding put simply.
View 6 Replies View RelatedFriends i am facing some issue with Linux i want to know how many kinds of file do we have in Linux and what are soft link and hard link mean and the difference. However i want to know also why do we use it in Linux
View 1 Replies View RelatedI have a computer on LAN running ssh. I can normally tunnel the GUI application usingssh computer-name -X program-nameBut I wam my full desktop to be running on a remote computer using ssh so that I can just use that computer remotely like a local desktop. For this I think I will need to run KDM (or GDM ) remotely, what configuration do I need to do to make this happen?
View 2 Replies View RelatedI'm wonder what the differences are, especially as it pertains to SharePoint. Why should I pick one over the other or does it matter? Also are there any Linux browser solutions for SharePoint, besides Wine + IE 6.
View 2 Replies View RelatedI have extra P4 PC (Dell Dimension 2400). And I would like to use this PC as NAS. What is the best way to make NAS from a PC.
View 3 Replies View Relatedtar cvf backup.tar -C / / # or tar cvf backup.tar /
produces an archive like etc/ and gives warnings
On the other hand produces an archive like
And gives no warnings. I got the last one from a Debian tutorial.
Which is best for a system backup, do they work exactly the same?
Is there no difference between tar -tvh producing
And tar -tvh producing
From an archive
At this dir /lib/modules/2.6.18-164.el5PAE/ have dir on the name build, if i use the command "DIR" i can see the it there but when i try to cd into this dir it's say " No such file or directory" i Need this dir cause i want to run vmware and it's the c header / kernel dir
View 6 Replies View RelatedI'm not sure to whom I should report certain bugs, to the program developers, or to the WM developers. More confusion if plugins are involved.Flash, in opera, behaves quite bad on openbox, but in fluxbox it's substantially better (usable). I don't know about KDE or GNOME. So, whose bug is it, openbox', opera's or flash's?Conversely, chrome's and chromium's flash will behave badly on fluxbox (and somewhat similarly to flash's problems on opera under openbox!), but almost perfectly on openbox, it will just "go crazy" sometimes playing videos, but all you need to do is to kill flash (just flash) and reload the page, or even open and close the part where flash would be shown (like individual items on google reader), and it will work normally again. This case isn't much of a problem of bug "ownership" because fluxbox is, sadly, discontinued, as far as I know.
The develpment version of gimp, 2.7, again, behaves somewhat strangely with openbox, regarding window management, while gimp 2.6 was normal as 2.7 is in fluxbox. Gimp's or openbox' bug?
At some point specific distributions may have something to do with the bugs too, I was forgetting that point.Would be interesting if there were a sort of "unified" bug report place, where developers from all the involved software could decide whose "fault" it is and exchange the bits of information they may have on how to solve it universally. I think that otherwise, bugs being solved more independently, could produce collateral bugs somewhere else, I guess. Like using an hypothetical fluxbox' fix for opera's flash problems on openbox culminating in the problems that chrome has with flash on fluxbox. But hopefully developers have something more or less organized to deal with this sort of contingencies, I can't be the first person to think of that, but still, I'd like to know whom to report the bugs to in this sort of situation. "Everyone" involved? Well, at least the main suspects I guess, as I hardly can track the cause of a problem to some obscure library that is at some point used by some program or WM.
I SSH into a server from my windows partition using putty. The connection requires a private key that is in my widows partition. This all works fine.
Now, How can I do same from my linux partition? Can I copy the key to my linux partition somewhere so I can connect from my linux partition as well? Or do I need to setup separate public/private key for my linux partition?