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Questions tagged [ruby]

Ruby is a dynamic, reflective, general-purpose object-oriented programming language that combines syntax inspired by Perl with Smalltalk-like features.

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18 views

Why is checkinstall freezing when I try to run “make install” for Ruby 2.5.5?

I'm compiling Ruby 2.5.5 with jemalloc in a Docker container, and I'm trying to build a deb package with the checkinstall tool. Here is the Dockerfile and build script I'm using. Steps to reproduce: ...
1
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2answers
38 views

Choose an option from select in bash

I am trying to run gem uninstall bundler through a bash script. The issue occurs when I have multiple bundler versions installed. It prompts the number of versions, and last option is to uninstall all ...
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0answers
26 views

Easier way to run remote and monitor remote commands

I'm currently leveraging Ruby in a docker image to run some commands on my local Linux system via SSH and Tmux. However, this isn't feasible since I can't figure out a way to actually monitor the ...
0
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2answers
45 views

Ubuntu could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)

I'm trying to create a new user form my rails application. I already ran psql -p 5432 -h localhsot -U postgres and created a new user. Then I added the user with sudo adduser user_name and afterwards ...
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0answers
74 views

How does 'Open with' a custom executable in Linux work?

I have a file called foo.txt. I want to associate my own program with the mime-type .txt so that my program opens a terminal and shows the contents of foo.txt as standard output. I would prefer Ruby, ...
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0answers
50 views

Kali Linux error showing unmet dependencies

I'm getting the following error: The following packages have unmet dependencies: libwxgtk3.0-0v5 : Depends: libgtk2.0-0 (>= 2.24.0) but it is not going to be installed E: Error, ...
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1answer
71 views

Ruby on Rails Routing Error [closed]

I am running ruby on rails on an Ubuntu Droplet and I am encountering the following error when I navigate to my domain name: Routing Error uninitialized constant HomeController Rails.root: /home/...
4
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1answer
239 views

With gnu find, what is the difference between -print0 and -printf “%p\0”

In a terminal I can run... find . -type f -print0 ./testdir/testfile2.txt./testdir/testfile.txt And then... find . -type f -printf "%p\0" ./testdir/testfile2.txt./testdir/testfile.txt They both ...
3
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1answer
276 views

Remove multiple strings from file on command line, high performance [closed]

Is there an elegant, high-performance one-liner way to remove multiple complete strings from an input? I process large text files, e.g., 1 million lines in inputfile, and 100k matching strings in ...
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0answers
16 views

Execution of Embedded ruby code

I have ruby code written for user add in DB. User Add Code : `<h1>New User Group</h1> <%= f.label :name, 'Name:' %> <%= f.text_field :name, :class => '...
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0answers
229 views

Can't install ruby on rails MacOSX

While trying to install ruby on rails with sudo gem install rails I get the following error Building native extensions. This could take a while... ERROR: Error installing rails: ERROR: Failed ...
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1answer
223 views

Ruby on NixOS — FFI Gem installation failing when building native extensions

I am a Rubyist of many years. I cannot determine what's missing to prevent FFI from installing. Here is the error from the make.out file (gotta love that name): make[3]: *** [Makefile:1048: ...
1
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1answer
136 views

NixOS Ruby Development - Installing all needed devkit libraries and headers to build native extensions

I'm a Ruby developer thoroughly enjoying NixOS. I just need to know how to set up dependencies to build native dependencies on gems like FFI and Nokogiri. Currently I am getting this error: The ...
1
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0answers
165 views

Can't access gems after installing ruby and gems with ansible

I'm working on an Ansible script to install my standard working environment (Ruby on Rails). Ansible runs under sudo, and the gems that have been installed are only accessable under sudo too. If I ...
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0answers
788 views

RVM halting installation please read /usr/local/rvm/log/

While trying to install RVM when I came across a problem: Error running '__rvm_make -j2', please read /usr/local/rvm/log/1519159695_ruby-2.4.1/make.log There has been an error while running ...
0
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1answer
91 views

emerge install package with flag which not in ruby_targets

$ emerge --info | grep ruby ..... RUBY_TARGETS="ruby23" ...... And I run emerge with --newuse and --deep, it will ask me to add use flag with ruby22. These packages are not in @system. These ...
1
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1answer
144 views

sh script to run multiple files in multiple languages

Is it possible to have an sh script that would run a python file, run a command ruby file and run a ruby sonicPI file? What would this look like? Thank you! Adi
1
vote
1answer
30 views

Fastest way to determine if directory contents have changed since last time

I have a script that checks a directory using mdls* (to sort by added time) and them performs some operations. However, mdls is a bit slow so I’d like to run it only when absolutely necessary (i.e. ...
0
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1answer
59 views

where are codiad projects stored locally?

In Firefox I installed codiad as: where is ruby_hello actually located? (When it asked for the absolute path, I wasn't able to put in /home/thufir/... because of permission, so just typed in "...
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2answers
719 views

Error installing Ruby on Rails (Arch Linux)

I'm currently having an issue when trying to install Ruby on Rails on my Arch Linux ARM system. But it's also not just rails that won't install, it's anything I try to install using gem. Here is some ...
3
votes
1answer
1k views

Gem install producing “OpenSSL” error

For at least a week now i have been trying to install Bettercap on my Raspberry PI using gem but whenever i type in: sudo gem install bettercap i receive an error message that says ERROR: While ...
1
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1answer
36 views

How to start gem ffaker in Debian?

I install ffaker but cannot find it in my PATH masi@masi:~$ sudo gem install ffaker Fetching: ffaker-2.6.0.gem (100%) Successfully installed ffaker-2.6.0 Parsing documentation for ffaker-2.6.0 ...
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1answer
262 views

Incompatible character encoding in Jenkins can't resolve

I am attempting to run a Cucumber (Ruby) Test Suite from Jenkins that tests whether or not 2-4 byte UTF-8 characters are valid names for groups. I have tried a number of solutions and have been ...
1
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2answers
2k views

unable to access my rails using Public IP of my Ubuntu server in a browser

I have a Ubuntu 16.04.1 LTS (GNU/Linux 4.4.0-63-generic x86_64) server and my public IP is something like 183.xx.xxx.xx (curl -4 icanhazip.com).I have started my rails app using the command: rails s -...
1
vote
1answer
153 views

How can I use ruby gem commands like bundler when ruby is installed by nix package manager?

I'm new to nix package manager. After installing nix into Ubuntu 16.04 LTS(Japanese translated version), I installed ruby with nix-env command. Then I did gem install bundler. That seemed to work ...
1
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1answer
139 views

Use RVM to point to custom Ruby path

I have my ruby-2.3.1 installed in /opt/rubies/ruby-2.3.1/bin/ruby, but by some problems with dependencies KDE downloads ruby-2.1 to /usr/bin/ruby and now my system uses that version. I've install RVM ...
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votes
1answer
34 views

How to install KDE without Ruby?

For a project I'm using Ruby 2.3.1, I'm using a CentOS7 OS with ruby 2.3.1 installed. When I run yum install kde-workspace it installs/downgrades to ruby 2.0.0.648-29.el7 which makes the application ...
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2answers
561 views

How to iterate over files using awk, bash, or ruby?

I have three markdown files on my machine: $ ls | grep md bar.md baz.md foo.md Each file has the given content: $ cat *md i am bar i am baz i am foo As an example, I'd like "loop over all the ...
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votes
1answer
1k views

ulimit value not changing for a process

We have a ruby application that started throwing lot of "unable to create new socket: Too many open files" errors recently I have updated "etc/security/limits.conf" as below root soft nofile ...
0
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3answers
67 views

using linux command and gnu software inside a ruby script

Can I use ls command or wget gnu software inside a Ruby script? Actually, can I use Ruby instead of Bash , and use all of Linux commands and Gnu Software ?
1
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1answer
504 views

What is the best way to update Ruby 2.x on Debian 7?

In fact, my goal is to install Capistrano. Currently it requires Ruby version 2.x and higher. But Ruby is available max 1.9.3 in Debian 7. So I was faced with dilemma, which is written in the title of ...
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0answers
94 views

mysql.so: undefined symbol: vio_blocking

I'm trying to set up a Rails 2.2.2 installation (for an old app that I maintain) in a new Linux Mint 18 install. I've installed mysql (5.7.16-0ubuntu0.16.04.1 (Ubuntu)) and, using RVM, have installed ...
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1answer
735 views

Ruby version issues

I have been practising setting up a production environment with puppet, and now I'm setting up everything to accommodate HTTP requests with Apache. Since Puppet runs on Ruby, I also need Passenger ...
0
votes
1answer
631 views

Permission error when creating backup on gitlab omnibus installation

I am using gitlab version 7.10.4 and I am trying to upgrade the installation. But I am getting this when I tried to create back up gitlab-rake gitlab:backup:create Errno::EPERM: Operation not ...
1
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1answer
292 views

Redirecting stderr of a Ruby script not working as expected

I have a command that I think is outputting to stderr because when I redirect stdout to /dev/null I still get output printed to the screen. However, when I redirect stderr to /dev/null I also get ...
0
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1answer
203 views

Error installing the rmagick gem in Ruby 1.8.6 rvm - “checking for InitializeMagick() in -lMagick… no”

I have an old Rails app I maintain which uses Ruby 1.8.6. I'm trying to get a new install of Linux Mint 18 up and running so I can develop for the app. I managed to install the same (almost) version ...
1
vote
1answer
285 views

Service Start Issue Systemd

I have configured a dradis.service file in /lib/systemd/system, it is called dradis.service. And it is its content: [Unit] Description=Dradis web application [Install] WantedBy=multi-user.target [...
3
votes
1answer
464 views

Is there man command for bundle?

There is a command bundle in ruby. I want use man command or similar function for bundle. Does it exist? If there is it, I want to know how to look for separated command like bundle gem. I can see ...
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votes
3answers
1k views

Kali linux : unable to “make” airdrop-ng / lorcon / pylorcon2

here is what I'm trying to do cd lorcon ./configure --libdir=/usr/lib make make install cd pylorcon2 python setup.py build python setup.py install cd ../ruby-lorcon/ ruby extconf.rb make make ...
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0answers
517 views

Howto upgrade ruby on a Ubuntu 14.04.2 (Trusty) on a Raspberry Pi 2 (armhf architecture)

I need to install json via # gem install json --no-rdoc --no-ri but I get as result ERROR: Error installing json: json requires Ruby version ~> 2.0. I use Ubuntu Trusty (this image) and ...
2
votes
0answers
469 views

x64_mingw not a valid platform - Rails 5

Bluehost Shared Server ruby -v 2.2.2 rails -v 5.0.0.1 gem -v 2.4.5 ~/.bashrc export HPATH=$HOME export GEM_HOME=$HPATH/ruby/gems export GEM_PATH=$GEM_HOME:/lib64/ruby/gems/1.9.3 export GEM_CACHE=$...
2
votes
0answers
251 views

Metasploit ruby “bad interpreter: Permission denied”

When I'm typing in my terminal msfconsole I got something like this: bash: /usr/bin/msfconsole: /usr/share/metasploit-framework/ruby: bad interpreter: Permission denied ls -l /usr/share/metasploit-...
1
vote
1answer
531 views

Proxychains DNS error but not with ping

I'm having a weird issue with proxychains. I set up the DNS server to be 8.8.8.8 (Google), and I have a valid proxy in the configuration. When I ping google using proxychains, it pings normally. But ...
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3answers
3k views

Unable to install libyaml-devel libffi-devel in CentOS

I am trying to install latest of ruby through RVM. I could not install install as it requires libyaml-devel and libffi-dev. When ever i try to install them i get error that no package found [root@dev ...
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0answers
68 views

SSL error with rvm and ruby 2.2.2

I am getting the below error while doing a api call from one app to another: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed We are using using rvm ...
3
votes
2answers
1k views

Can you tell if a file has been renamed?

Many tools out there for syncing files aren't quite right for syncing you're home directory. Because of this, and to learn Ruby, I've been working on my own sync tool. An issue I've encountered, ...
1
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0answers
101 views

Sudden problem with a rack/passenger ruby app: “Connection closed”

I have a Ruby 1.8.7 app which runs under Phusion Passenger and Nginx, for one of my clients, on an Ubuntu VPS. It's been ticking away happily for years, but yesterday ran out of log space (sending me ...
2
votes
1answer
612 views

How can I launch irb from a bash script, execute some commands, then pass the irb session to the console?

I am creating a ruby gem and to speed my testing I wrote a script to build and install my gem, then to open irb for me to manually poke around. How can I run the following ruby commands before ...
1
vote
2answers
4k views

CentOS: How to install libyaml-devel from source?

I'm trying to install RVM in a CentOS server which for some weird reason I do not have access to internet. One of its dependencies is the library libyaml-devel. I already installed the libyaml ...
0
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2answers
3k views

Error installing nokogiri: ERROR: Failed to build gem native extensions

I can build my rails application on my mac On my Ubuntu machine when I bundle I get errors with a bunch of gems including nokogiri, version 1.6.7.2 Error installing nokogiri: ERROR: Failed to build ...