如何在mac上安裝ruby環(huán)境:
對于新入門的開發(fā)者,如何安裝 Ruby和Ruby Gems 的運行環(huán)境可能會是個問題,本頁主要介紹如何用一條靠譜的路子快速安裝 Ruby 開發(fā)環(huán)境成艘。此安裝方法同樣適用于產(chǎn)品環(huán)境洞渤!
通過命令行查看ruby版本信息:
??? ruby -v
命令行運行程序:
方法1.
???? ruby -e 'print "hello ruby"'
-e 表示將后面的一行作為ruby程序
??? print 是ruby的一個內(nèi)置函數(shù)
方法2.交互編譯環(huán)境
??? irb (命令行輸入后橙凳,會進入到編譯環(huán)境)
???? print "hello ruby" (執(zhí)行print命令)
方法3: 執(zhí)行文件
??? ruby xxx.rb
step1:
which pod: 查看pod命令所在路徑,比如為/usr/local/bin/pod丘损,然后執(zhí)行 rm -rf /usr/local/bin/pod 將pod命令移除
step2:
執(zhí)行gem list | grep cocoapods ?查看所有與cocoapods相關的已安裝的組件,然后挨個卸載
我這里的執(zhí)行結果是:
cocoapods-core (0.39.0)
cocoapods-downloader (0.9.3)
cocoapods-plugins (0.4.2)
cocoapods-search (0.1.0)
cocoapods-stats (0.6.2)
cocoapods-trunk (0.6.4)
cocoapods-try (0.5.1)
然后我就挨個執(zhí)行:
gem uninstall cocoapods-core
gem uninstall cocoapods-downloader
gem uninstall cocoapods-plugins
gem uninstall cocoapods-search
gem uninstall cocoapods-stats
gem uninstall cocoapods-trunk
gem uninstall cocoapods-try
step3: 重新安裝pod
執(zhí)行sudo gem install cocoapods奕筐, 提示出錯:While executing gem ... (Errno::EPERM) ? ? Operation not permitted - /usr/bin/pod
在命令中指定安裝到/usr/bin/pods下即可正常安裝成功:
sudo gem install -n /usr/local/bin ?cocoapods
安裝成功舱痘,
step4: 查看新安裝的pod版本:
pod --version
0.39.0