bash cp：目标不是目录
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Cp: target is not a directory
提问by Archeg
I have a bash script with this line:
我有一个带有这一行的 bash 脚本：
cp -R /usr/lib/gcc/x86_64-linux-gnu/$GCC_VERSION/* /app/.apt/usr/lib/gcc/x86_64-linux-gnu/$GCC_VERSION
Full script: https://github.com/virtualstaticvoid/heroku-buildpack-r/blob/cedar-14/bin/compile
完整脚本：https: //github.com/virtualstaticvoid/heroku-buildpack-r/blob/cedar-14/bin/compile
Unfortunately it fails with cp: target ‘/app/.apt/usr/lib/gcc/x86_64-linux-gnu/4.8' is not a directory
不幸的是它失败了 cp: target ‘/app/.apt/usr/lib/gcc/x86_64-linux-gnu/4.8' is not a directory
Any tips what could be wrong? Unfortunately I do not have much experience with bash.
任何提示可能是错误的？不幸的是，我对 bash 没有太多经验。
Previously this script was running alone and it was working. Now I had to add some apt-get installbefore it, and it started to fail so I am trying to fix it.
以前这个脚本是单独运行的，并且可以正常工作。现在我不得不apt-get install在它之前添加一些，它开始失败，所以我试图修复它。
回答by Joda
There is no directory with the name 4.8...Thats your problem :)
没有名称为 4.8 的目录......那是你的问题:)
Run this before your cp command:
在你的 cp 命令之前运行这个：
mkdir -p /app/.apt/usr/lib/gcc/x86_64-linux-gnu/$GCC_VERSION
It creates all directories in the given path!
它会在给定路径中创建所有目录！
回答by Drako
This should work, add /at the end of cpcommand to make it clear for it that its dir:
这应该有效，/在cp命令末尾添加以明确其目录：
mkdir -p /app/.apt
cp -R $BUILD_DIR/.apt/* /app/.apt/
