Unity

i have logs folder , log files owned root , need them owned www-data . i'm writing script check if owned www-data = writable user. #!/bin/bash rootfiles=$(ls -la /tmp/logs/ | grep root | sed -e 's/\s*$//') if [[ ! -z "$rootfiles" ]]; exit 1 fi exit 0 this works fine, if assume there'll no file contains word root in it's name, , that's not root www-data . how make more robust? you can use find find out: find /tmp/logs -not -user www-data but, to change owner of files, can use recursive chown : chown -r /tmp/logs/* www-data

here code 1 website need make multiple ip's in same try , catch package javaapplication1; import java.net.inetaddress; import java.net.unknownhostexception; public class javaapplication1 { public static void main(string[] args) { try { inetaddress[] addresses = inetaddress.getallbyname("google.com"); (inetaddress address : addresses) { system.out.println(address); } } catch (unknownhostexception ex) { system.out.println("could not find"); } } } make list of facebook,google , yahoo iterate on list , use inetaddress.getallbyname(list.get(index)) arraylist<string> list = new arraylist<>(); list.add("facebook");// can add more urls (string ip : list) { try { inetaddress[] addresses = inetaddress.getallbyname(ip); (inetaddress address : addresses) { ...

i want create own safe connection voip app. now looking key exchange seems more tricky encrypting/decrypting. are there better approaches diffie-hellman in practice ? i understand concept of diffie-hellman think needs right values safe since natural numbers guessed. how can values using python, , safe key guessing? please me background informations / inspiring. diffie-hellman key exchange, called exponential key exchange, method of digital encryption uses numbers raised specific powers produce decryption keys on basis of components never directly transmitted, making task of would-be code breaker mathematically overwhelming. the serious limitation of diffie-hellman in basic or "pure" form lack of authentication. communications using diffie-hellman vulnerable man in middle attacks. ideally, diffie-hellman should used in conjunction recognized authentication method such digital signatures verify identities of users on public communications medium. more l...

i've got rails application inherited previous coder. generates sortable tables , has helper function sortable sortable ends this link_to title, link, { :class => css_class, :"data-direction" => direction, :"data-sort" => column, :"data-page" => params[:page].to_i.zero? ? 1 : params[:page].to_i, :"data-title" => params[:title], :"data-search-id" => params[:search_id], :title => "sort `#{title}` #{direction}"} link conatins fields :sort , :direction when try create sortable table written controller i'm getting error (no route matches {:sort=>:company_name, :direction=>:asc, :controller=>"company"}) don't understand how code working on other controllers , fields controller , action

i have small script in php set at jobs exec() . php can execute exec() , @ jobs added queue, because see them on @ queue list. echo "/usr/local/ffmpeg1.1/bin/ffmpeg -i '/data/html/admin.domain.com/httpdocs/raw/gym/gym_part_1.avi' -c:v libx264 -vsync 2 -strict -2 /data/html/domain.com/httpdocs/videos/galleries/gym_part_1.mp4" | @ +2 minutes this doesn't work. gets queued doesn't work. if i run on bash works perfectly user i'm logged in or apache user - adding sudo -u apache before at . echo "/usr/local/ffmpeg1.1/bin/ffmpeg -i '/data/html/admin.domain.com/httpdocs/raw/gym/gym_part_1.avi' -c:v libx264 -vsync 2 -strict -2 /data/html/domain.com/httpdocs/videos/galleries/gym_part_1.mp4" | sudo -u apache @ +2 minutes linux , @ version linux linux web1.com 2.6.18-400.1.1.el5 #1 smp thu dec 18 00:59:53 est 2014 x86_64 x86_64 x86_64 gnu/linux at at version 3.1.8

can introduce alias partial specialization? mean that: template <class t, class v> class a{ }; typedef template <class t> a<t, int> mypartialspecializa<t>; int main(){ } demo but doesn't work. standard that? you need alias template this template <class t, class v> class a{ }; template <class t> using mypartialspecializa = a<t, int>; int main() { mypartialspecializa<double> a; }

i'm requesting json data 2 servers. okhttp doesn't cache responses first server, responses second server caching properly. response first server, cache not working reason: <--- http 200 cache-control: public, max-age=2230 content-type: application/json; charset=utf-8 expires: sat, 28 mar 2015 11:34:13 gmt last-modified: sat, 28 mar 2015 10:34:13 gmt vary: * server: microsoft-iis/7.5 x-aspnet-version: 4.0.30319 x-powered-by: asp.net access-control-allow-origin: * date: sat, 28 mar 2015 10:57:01 gmt content-length: 1381 okhttp-selected-protocol: http/1.1 okhttp-sent-millis: 1427540192625 okhttp-received-millis: 1427540192940 <--- end http (1381-byte body) response first server when device offline: ---> http cache-control: public, only-if-cached, max-stale=2419200 ---> end http (no body) <--- http 504 <--- end http (0-byte body) response second server, cache works: <--- http 200 content-type: application/json; charset=utf-8 date: sat, 28 mar 20...