ruby testCommand.rb hello world 使用exec一个头疼的事情就是没有办法知道shell命令执行成功还是失败。 system system和exec相似,但是system执行的命令不会是在当前进程,而是在一个新创建的进程。system会返回布尔值来表明命令执行结果是成功还是失败。 1 2 3 4 5 6 7 8 9 10 11 12
Run, debug, and test your application on the same operating system you deploy. Develop Linux-deployed applications using the Windows Subsystem for Linux. You can prepare the desired Ruby/Rails setup in a remote environment using Docker Compose, Vagrant box, or WSL. Then, you can add the remot...
Run, debug, and test your application on the same operating system you deploy. Develop Linux-deployed applications using the Windows Subsystem for Linux. You can prepare the desired Ruby/Rails setup in a remote environment using Docker Compose, Vagrant box, or WSL. Then, you can add the remot...
repo # if [enabled=0], input a command to use the repository [root@linuxprobe ~]# yum --enablerepo=epel install [Package] Ruby on Rails 4 安装Ruby 2.2,参考上面 安装依赖包(epel+SCLo) 代码语言:javascript 代码运行次数:0 运行 AI代码解释 [root@linuxprobe ~]# yum --enablerepo=epel,...
Hello all, Description I am having an issue where when I run 'ruby' or the 'gem' command for installing gems, after installing a ruby version via RVM, I repeatedly get the error: ruby: invalid option -: (-h will show valid options) (Runt...
request (or service) - time to process a request wait - time to start processing a queued request command - time to run a command solve - time to solve an optimization problemStatement TimeoutsFor many apps, the single most important thing to do (if you use a relational database)PostgreSQL...
To update to the latest version installed on your system, run `bundle update --bundler`. To install the missing version, run `gem install bundler:1.17.3` from /usr/local/lib/ruby/2.7.0/rubygems.rb:294:in `activate_bin_path' from /lobsters/.gem/ruby/2.7.0/bin/bundle:23:in `<main...
To find out which runtime configuration is being used, run ruby --version on the command line, or check the value of RUBY_DESCRIPTION or TruffleRuby.native? in Ruby code. Runtime configurations are further detailed in Deploying TruffleRuby....
-bash:rvm:commandnotfound 情况一:如果不存在rvm环境,先安装配置rvm环境; ① 期间可能会问你`sudo管理员`密码,以及自动通过`homebrew`安装依赖包; 等待一段时间后就可以成功安装好`rvm`。 $ curl -L https://get.rvm.io | bash -s stable 输出结果:(下载安装)(显示的 `` 代表一行空格) ...
user system total real seq 64.560736 0.001101 64.561837 ( 64.562194) par 66.422010 0.015999 66.438009 ( 16.685797) The result was measured on Ubuntu 20.04, Intel(R) Core(TM) i7-6700 (4 cores, 8 hardware threads). It shows that the parallel version is 3.87 times faster than the sequential ver...