RVM Installation - ruby-on-rails-3

I am trying to install rvm on ubuntu 11.10.
I have installed it using following command through curl.
curl -L get.rvm.io | bash -s stable --auto-dotfiles
On terminal it specifies that rvm has been installed properly and I have checked .rvm directory has been created properly in my home directory and in .rvm directory version file is present but when I write rvm -v on terminal it gives following msg
~$ rvm -v
The program 'rvm' is currently not installed. You can install it by typing: sudo apt-get install ruby-rvm
Please help.

Did you add the PATH to your .bashrc file?
[[ -s "$HOME/.rvm/src/rvm/scripts/rvm" ]] && . "$HOME/.rvm/src/rvm/scripts/rvm"
After you added it, reload it:
source ~/.bashrc
EDIT: this is not recommended way of RVM, rvm does shell file initialization, if you need force this process run rvm get head --auto-dotfiles

Related

Why is brew install redis not working for mac M1?

I have to install redis, but it is not working to install redis anymore using brew. Getting the following error when trying to install this way:
Warning: No available formula with the name "redis".
==> Searching for similarly named formulae and casks...
==> Casks
another-redis-desktop-manager ✔ redis-pro
jpadilla-redis redisinsight
medis
To install another-redis-desktop-manager ✔, run:
brew install --cask another-redis-desktop-manager ✔
Tried the command brew install --cask another-redis-desktop-manager.
This also didn't work.
Actually found the answer. Basically the reason for the failure in installation was because the core homebrew packages were not correctly configured.
Identified the issue with brew doctor
The solution was
rm -rf "/opt/homebrew/Library/Taps/homebrew/homebrew-core"
brew tap homebrew/core
ARM Homebrew must be installed in the /opt/homebrew directory. Earlier, you need to manually create directories and run commands. However, you do not need to manually run commands to use the latest scripts.
Direct execution:
/bin/bash -c "$(curl -fsSL https://gitee.com/ineo6/homebrew-install/raw/master/install.sh)"
PS: terminal type Run the echo $SHELL command. The command output is as follows:
/bin/bash => bash => .bash_profile
/bin/zsh => zsh => .zprofile
If you encounter invalid environment variables, you are advised to check the terminal type before setting the correct environment variables.
Starting with macOS Catalina(10.15.x), Macs use zsh as the default Shell, using.zprofile, so the corresponding command:
echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.zprofile
eval "$(/opt/homebrew/bin/brew shellenv)"
If you have macOS Mojave or later and have not configured zsh yourself, use.bash_profile:
echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.bash_profile
eval "$(/opt/homebrew/bin/brew shellenv)"
Hope this can help you

npm install error `not foundram Files/nodejs/npm: 3: /mnt/c/Program Files/nodejs/npm:`

I have installed Ubuntu Bash on Windows. I already have nodejs and npm on my windows machine at C:\Program Files\nodejs. In the bash shell in Windows, I am running a script which uses npm install command. The script is giving following error
: not foundram Files/nodejs/npm: 3: /mnt/c/Program Files/nodejs/npm:
: not foundram Files/nodejs/npm: 5: /mnt/c/Program Files/nodejs/npm:
/mnt/c/Program Files/nodejs/npm: 6: /mnt/c/Program Files/nodejs/npm: Syntax error: word unexpected (expecting "in")
Note: Before following the steps below, first try to restart your shell.
You can install Node.js and NPM with your Windows PowerShell as well, so if you've done that it won't work properly for your Subsystem. That means you have to install it twice (Powershell and Subsystem) or decide on one thing.
If the preceding text, has not helped you, this is how to solve the problem:
Remove your current installations
sudo apt-get --purge remove node
("sudo apt autoremove node" if console is asking for it)
sudo apt-get --purge remove nodejs
Install node the right way.
This is for version 14 (view current LTS version):
curl -fsSL https://deb.nodesource.com/setup_14.x | sudo -E bash -
sudo apt-get install -y nodejs
Then install build tools so you can install add-ons for npm later
sudo apt-get install -y build-essential
Now you can type in
npm -v
node -v
Same thing: nodejs -v
to check whether Node.js and NPM are installed correctly. If it shows nothing, restart the shell.
If it still shows the same error, restart the WSL/ PC or try with sudo npm -v
Here are two links that may also help you.
https://nodejs.org/en/download/package-manager/#debian-and-ubuntu-based-linux-distributions
https://github.com/nodesource/distributions/blob/master/README.md#debinstall
Also, take a look at the Node Version Manager (NVM). With it, you can easily switch back and forth between versions.
The solution provided by phucanhapril on May 24, 2017 in this thread worked for me.
To summarise, edit ~/.profile and change your PATH to this:
PATH="$HOME/bin:$HOME/.local/bin:/usr/bin:$PATH"
(By default it does not include /usr/bin)
Then run:
source ~/.profile
I am not quite sure why npm doesn't work properly in the first place, or why /usr/bin isn't in PATH by default, but the solution worked for me.
I had the same problem to solve I installed "NVM" in my Subsystem
Follow these steps and see if it will solve for you:
sudo apt-get update
sudo apt-get install build-essential libssl-dev
curl -sL https://raw.githubusercontent.com/creationix/nvm/v0.31.0/install.sh -o install_nvm.sh
bash install_nvm.sh
source ~/.profile
nvm install 11.13.0
You can try sudo npm install it was a solution in my particular case.
Linux command for install nodejs and npm
sudo apt-get install nodejs
sudo apt-get install npm
Set path in linux
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
reference
https://github.com/microsoft/WSL/issues/3882
curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
sudo apt-get install -y nodejs
this is enough, if you still face the problem
node installation needs restart, close you ubuntu window and start again it will solve your problem :)
I had the same problem. This is what I did.
Step 1. Type node -v and npm -v commands in Windows PowerShell and check if node and npm are properly installed
Step 2. Add this to the ~/.zshrc or ~/.bashrc file
export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
Step 3. Type source ~/.zshrc and/or source ~/.bashrc
Step 4. Type node -v and npm -v commands in bash or zsh shells and the correct versions should now appear
On Visual Studio -> Tools -> Options -> Projects and Solutions -> Web Package Management -> make sure $(PATH) is above all the rest.
As long it is not located at the top of the list VS will try to use VS tools instead of npm.
You should also refer windows to the current npm version by following this screenshot, after try npm --version.
Changing npm path:
I had this issue in both Debian and Ubuntu (though in Ubuntu the nvm command did work) when I was running Windows 10 version 1703. Then when I upgraded to version 1903 the problem disappeared.
I had the same error and it may seem silly, but I fixed it by simply typing exit in the console and opening it again.
I received this error when I modified my "~/.bashrc" file to shorten up the bash directory.
At first I had:
if [ "$color_prompt" = yes ]; then
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u\[\033[00m\]:\[\033[01;34m\]\W\[\033[00m\]\$ '
else
PS1='${debian_chroot:+($debian_chroot)}\u\h:\W\$'
fi
....But then could not run any node operation. I rolled it back and the error stopped happening.
After some troubleshooting, I was able to fix the error by adding ~ before the $ on PS1='${debian_chroot:+($debian_chroot)}\u\h:\W\~$
I just read through many threads trying to do this. There is complete documentation for setting up node, nvm, and npm in wsl, here: https://learn.microsoft.com/en-us/windows/nodejs/setup-on-wsl2
If you already installed node and npm using the following commands,
sudo apt-get install nodejs
sudo apt-get install npm
NPM will not work. You must first uninstall them using:
sudo apt-get remove nodejs
sudo apt-get remove npm
Follow the guide to completely uninstalling here: How can I completely uninstall nodejs, npm and node in Ubuntu
Then reinstall from the windows guide referenced above.
The windows guide has many other useful resources.
The Tldr to install(from Microsoft Docs):
sudo apt-get install curl
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.37.2/install.sh | bash
nvm install --lts
I had identical output to that in the question. It occurs because Ubuntu on WSL adds Windows paths to the bash shell, but of course the Windows executables do not work in bash.
I installed nvm, and from there installed node into bash. NVM works out all the paths so it works.

PHP Fatal error: Class 'Phalcon\Script\Color' not found

I'm running Ubuntu Server 12.10 and have installed phalcon like this
sudo apt-get install php5-dev php5-mysql gcc git-core
git clone git://github.com/phalcon/cphalcon.git
cd cphalcon/build
sudo ./install
then I've added
extension=/usr/lib/php5/20100525/phalcon.so
to php.ini which located in /etc/php5/apache2/php.ini and restarted apache2. If I execute
<?php print_r(get_loaded_extensions()); ?>
I can see that the phalcon extension is loaded. Then I've installed phalcon-devtools like that
git clone git://github.com/phalcon/phalcon-devtools.git
cd phalcon-devtools
sudo ./phalcon.sh
and restarted apache2. No errors were shown during that operations, but when I'm trying to execute
phalcon commands
I get an error like this
PHP Fatal error: Class 'Phalcon\Script\Color' not found in /home/user/phalcon-devtools/phalcon.php on line 84
What I'm doing wrong?
So the problem was in php.ini for CLI, which is located in /etc/php5/cli/, after I added extension=/usr/lib/php5/20100525/phalcon.so there, I was able to use Devtools. Thanks to #NikolaosDimopoulos
Official documentation is a bit confusing so try this:
I think this is a problem of extension not loaded
After successfully compile steps:
sudo apt-get install php5-dev php5-mysql gcc git-core
git clone git https://github.com/Phalcon/cphalcon.git
cphalcon cd/build
sudo ./install
Create a new file called "30-phalcon.ini"
and within it call the extension Phalcon with this single line:
extension=phalcon.so
save the file and copy the folder "/etc/php5/apache2/conf.d /" and "/etc/php5/cli/conf.d/"
restart the server: sudo service apache2 restart
While the devtools do this:
sudo git clone https://github.com/phalcon/phalcon-devtools /var/www/devtools
then create a symbolic link to run via terminal:
1: sudo ln -s /var/www/devtools/phalcon.php /usr/bin/phalcon
2: sudo chmod ugo+x /usr/bin/phalcon
3: type "phalcon" in the terminal and see if it's work.
it should work now: D
I always install the devtools from the PEAR channel
pear channel-discover pear.phalconphp.com
pear install phalcon/Devtools
You might get an error that the Devtools are not in stable mode but (as of the time of this writing) you can use this command:
pear install phalcon/Devtools-0.5.0
Source

Upgrade native apache from 2.2.21 to 2.4.2 - Lion 10.7.4

As stated in the title, i have apache 2.2.21 running natively as part of my LAMP stack. I would like to upgrade apache to the latest version - 2.4.2. Is there a recommended or best practice to safely perform this operation without breaking stuff of loosing existing settings, etc?
Thank you for the time and direction.
I was able to install the latest version (2.4.2) using the steps below.
Install pcre (perl compatible regular-expression library) using fink (or what ever osx package manager you use)
$ fink install pcre
Install the latest (2.4.2 as of writing this) using the steps below
$ sudp apachectl stop
$ cd ~/Downloads/
$ curl -O http://mirror.uoregon.edu/apache//httpd/httpd-2.4.2.tar.gz
$ gzip -d httpd-2.4.2.tar.gz
$ tar xvf httpd-2.4.2.tar
$ cd httpd-2.4.2
$ ./configure
$ make
$ sudo make install
However, the new binaries got installed under /usr/local and doesn't seem to have overridden the default install locations on OSX lion. And I could not find a config.nice file to use as suggested by the apache upgrade documentation.
The original apache files httpd, apachectl and ab were located on /usr/sbin. Without having found any documentation to confirm this was the right thing to do, I went ahead and backed up the original files and sym-linked the new files from /usr/local/bin into /usr/sbin, as follows.
$ cd /usr/sbin
# backup the original files ...
$ sudo ln -s ../local/bin/ab ab
$ sudo ln -s ../local/bin/apachectl apachectl
$ sudo ln -s ../local/bin/httpd httpd
This seems to have worked, although it would be nice to get a confirmation from someone in the know.

rvm install ree complaining about readline on Ubuntu

I'm trying to install ree-1.8.7 on Ubuntu 11.10, but I get the following:
$ rvm install ree-1.8.7
$ ...
$ ERROR: Error running './installer -a $HOME/.rvm/rubies/ree-1.8.7-2011.03 --dont-install-useful-gems -c --with-readline-dir=$HOME/.rvm/usr', please read $HOME/.rvm/log/ree-1.8.7-2011.03/install.log
$ ERROR: There has been an error while trying to run the ree installer. Halting installation.
If I check the install.log file as suggested, it says that:
GNU Readline development headers... not found
...
Please run apt-get install libreadline5-dev as root
That didn't work because the package is no longer available, so I finally found out about using libreadline from a rvm package. So I install it and run the install again:
$ rvm pkg install readline
$ rvm install ree-1.8.7 -C --with-readline-dir=$rvm_path/usr
I still get the same error even if I run rvm remove ree beforehand.
I'm stuck, what can I do?
UPDATE: I'm still stuck, but I found something that might be useful for others with a similar issue even though it didn't work for me. From the RVM REE page:
NOTE: on any OS, if installation of REE fails and the output file reports missing readline-devel, zlib-devel, and openssl-devel headers AND you are sure that you have read the packages install instructions - or you are otherwise positive that you have the necessary packages installed in a known location - check your PATH environment variable to make sure something like "/usr/lib" is NOT present. See this REE issue for more information. If you don't want to change your PATH variable then this patch fixes the issue in REE 2010.02
I checked my path and all I had that contained /usr/lib was /usr/lib/lightdm/lightdm. My full $PATH is this: bash: /home/michel/.rvm/gems/ruby-1.9.3-p0/bin:/home/michel/.rvm/gems/ruby-1.9.3-p0#global/bin:/home/michel/.rvm/rubies/ruby-1.9.3-p0/bin:/home/michel/.rvm/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games: No such file or directory.
I finally got it working by running this line:
rvm install ree --with-readline-dir=$rvm_path/usr --with-iconv-dir=$rvm_path/usr --with-zlib-dir=$rvm_path/usr --with-openssl-dir=$rvm_path/usr
Running only rvm install ree --with-readline-dir=$rvm_path/usr didn't work, so maybe they all need to be run at the same time.
Note that I ran the following commands some time before succeeding:
rvm head update; rvm reload;
# remove any file from previous failed installations
rvm remove ree
# as suggested in a comment on the question
sudo apt-get install libreadline6-dev
I'm not sure if the libreadline6-dev was necessary, but maybe and it's worth a try if you're having trouble.