ubuntu-12.04

Install python-numpy in the Virtualenv environment

由 你。 提交于 2019-12-09 05:32:43
问题 I would like to install the python-numpy in the Virtualenv environment. My system is Ubuntu 12.04, and my python is 2.7.5. First I installed the Virtualenv by $ sudo apt-get install python-virtualenv And then set up an environment by $ mkdir myproject $ cd myproject $ virtualenv venv New python executable in venv/bin/python Installing distribute............done. Activated it by $ . venv/bin/activate Installed python-numpy in the environment by $ sudo apt-get install python-numpy However, I

How to remove (completely deleting) a file using C program without using remove system call?

由 人盡茶涼 提交于 2019-12-09 00:37:43
问题 I've been curious how rem in Linux works and trying to write my own C code that can delete a file but when I searched for the answer, I only got the programs that were using remove() system call. Is there any other way of doing it without using system call like writing your own code to do the job? I've accomplished copying file through C filing but can't find a solution to delete a file through C. 回答1: If you want to delete a file use the remove function. If you want to have a look behind the

Passing variables into awk from bash

由 北慕城南 提交于 2019-12-08 19:26:53
问题 I am writing a shell script file in which I have to print certain columns of a file. So I try to use awk. The column numbers are calculated in the script. Nprop is a variable in a for loop, that changes from 1 to 8. avg=1+3*$nprop awk -v a=$avg '{print $a " " $a+1 " " $a+2}' $filename5 >> neig5.dat I have tried the following also: awk -v a=$avg '{print $a " " $(a+1) " " $(a+2) }' $filename5 >> neig5.dat This results in printing the first three columns all the time. 回答1: avg=1+3*$nprop This

Rails App Error: Premature end of script headers

由 感情迁移 提交于 2019-12-08 17:40:13
问题 My setup: Ubuntu 12.04 LTS, Apache, Phusion Passenger, latest Ruby and Rails. When I visit my website, I get a 500 Internal Server Error. Error Logfiles: Premature end of script headers Does somebody know how to solve that problem? 回答1: If you have a database configured for production in your config/database.yml that doesn't exist on the server as you mentioned in the comments, that could be the source of your issue since it's failing to establish a database connection. Remove that connection

How to run tomcat 7 in ubuntu 12.04? [closed]

由 北战南征 提交于 2019-12-08 14:30:28
Closed. This question is off-topic . It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I am using Ubuntu 12.04 and new for this environment. I have generated my project as war file and put under webapps folder of tomcat 7. But, How to run Apache Tomcat in-order to get result?? I think this is the solution. Under the tomcat/bin folder there will be one file named startup.sh . double click it, then it will ask for prompt, give run. for stop the server use shutdown.sh . I hope this will help you. 来源：

Bug G-WAN and Amazon EC2 [closed]

由 久未见 提交于 2019-12-08 14:14:11
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I thought my mistake was Problems to start G-WAN but today, I made more testst and my real problem is this: When I launch an instance with type micro, G-WAN works fine but if i launch the same instance with type small, medium, etc... G-WAN explote!!! It shows me the errors of the before post. This is a posible

Reload beanstalkd configuration without restaring

由 我们两清 提交于 2019-12-08 09:45:45
问题 Is there a way to reload the beanstalkd config without actually restarting beanstalkd? When I use sudo service beanstalkd restart or sudo service beanstalkd force-reload it clears all the queues. (Yes, in the future I will run it in persistent mode) 来源： https://stackoverflow.com/questions/15944879/reload-beanstalkd-configuration-without-restaring

Eclipse shorcuts (F3/ctrl+click) not working for navigation

由 末鹿安然 提交于 2019-12-08 08:23:05
问题 Shortcut to access the declaration with the help of this shortcut is not working Installed version of Ubuntu is 12.04 and for Eclipse it is: Version: Juno Release Build id: 20120614-1722 It says:- The Resource is not on the include path of a JavaScript project It works with .jsp files but not with .js files ! 回答1: These shotcuts works well with this version installed. 来源： https://stackoverflow.com/questions/12212686/eclipse-shorcuts-f3-ctrlclick-not-working-for-navigation

Android Bluetooth Client and Server Won't Connect

由 ▼魔方 西西 提交于 2019-12-08 06:29:48
问题 I am currently trying to create an app that connects Google Glass(client) to my computer(python server). I would like to send simple strings. I have tried multiple ways but haven't had much luck. I am currently using some sample code I found. After running both, i get the message "In onResume() and an exception occurred during write: Socket Closed" on Glass, and my computer(HP Pavillion Dv6 running Ubuntu 12.04 with Bluetooth Dongle) completely freezes. One time the GUI itself crashed and I

mailer error in production only

由 依然范特西╮ 提交于 2019-12-08 06:27:57
问题 Setup: VPS with Ubuntu 12.04, Apache, PhusionPassenger, Rail 3.2.12, Postgresql I want to send a confirmation mail with my app. In development mode everything works fine, the user receives a mail but in production I get this error (log): Started POST "/newsletters" for 1XX.16X.30.XX at 2013-02-26 09:22:47 +0000 Processing by NewslettersController#create as HTML Parameters: {"utf8"=>"✓", "authenticity_token"=>"XXXXXXXXXXXXX=", "newsletter"=>{"name"=>"Test", "email"=>"test@example.com"},
订阅 ubuntu-12.04