小编kjb*_*ley的帖子

搜索已经读入文件的数组(lines_ary [@]),我试图在文本中找到一个版本号.我在这里寻找Release,所以我可以找到下面的版本号.

在执行以下循环时,有没有办法在bash脚本中访问数组中的下一个元素？

for i in ${lines_ary[@]}; do
 if [ $i == "Release:" ] ; then
  echo ${i+1}
 fi
done

这只打印出'1',而不是'4.4'.

我最近擦了我的电脑(OS-Mac OS X 10.6.8),我正在重新安装我的所有开发工具.我再次安装了RVM; 但是,它不会让我安装Ruby 1.9.3.

到目前为止,我尝试过:

• rvm install 1.9.3
• rvm install 1.9.3-p194
• rvm install 1.9.3-p448
• rvm install 1.9.3 --with-gcc=clang

全部返回相同的命令行错误:

Searching for binary rubies, this might take some time.

No binary rubies available for: osx/10.6/x86_64/ruby-1.9.3-p448.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
Checking requirements for osx.

Warning: port definitions are more than two weeks old, consider using selfupdate

Certificates in '/opt/local/etc/openssl/cert.pem' already are up to date.

Requirements installation successful.

Installing Ruby …