我正在开发一个在Ubuntu盒子上安装新的跨平台DNX运行时的脚本。我正在编写整个安装的脚本，以便在配置机器后无人值守地运行。
以下是该脚本的相关部分：
#!/bin/bash
admin_username=$1
wget -q https://raw.githubusercontent.com/aspnet/Home/dev/dnvminstall.sh -P /home/${admin_username}/dnvm
bash /home/${admin_username}/dnvm/dnvminstall.sh
source /home/${admin_username}/dnvm/dnvm.sh
dnvm ## <-- Error: post_deployment.sh: 34: post_deployment.sh: dnvm: not found
配置完成后，脚本将在计算机上以root用户身份执行。 ${admin_username}正确传递 - /home/${admin_username}/dnvm/dnvm.sh执行dnvminstall.sh后文件系统上确实存在dnvm。
问题是dnvm.sh命令是在post_deployment.sh文件中定义的，但在获取文件后在调用脚本（bash /home/${admin_username}/dnvm/dnvm.sh）中不可用。
从我读过的内容 - 如果我会使用source - 它会在子shell中运行该脚本，而不是暴露内部的任何函数。但是使用2016/05/18 07:19:33 Downloading DNVM installation script ...
2016/05/18 07:19:33 Running installation script ...
2016/05/18 07:19:33 Downloading dnvm as script to '/home/serveradmin/dnvm'
2016/05/18 07:19:33
2016/05/18 07:19:33 Appending source string to /home/serveradmin/.profile
2016/05/18 07:19:33 Type 'source /home/serveradmin/dnvm/dnvm.sh' to start using dnvm
2016/05/18 07:19:33 Sourcing DNVM commands ...
2016/05/18 07:19:33 Downloading coreclr DNX runtime ...
2016/05/18 07:19:33
2016/05/18 07:19:33 ---errout---
Extracting templates from packages: 100%
2016/05/18 07:19:33 + source /home/serveradmin/dnvm/dnvm.sh
2016/05/18 07:19:33 post_deployment.sh: 33: post_deployment.sh: source: not found
2016/05/18 07:19:33 + dnvm
2016/05/18 07:19:33 post_deployment.sh: 34: post_deployment.sh: dnvm: not found
应该，对吧？
更新
脚本的执行痕迹：
...
echo "Sourcing DNVM commands ..."
set -x
source /home/${admin_username}/dnvm/dnvm.sh
dnvm
...
有实际来源：
source那么 - 似乎找不到命令 mLinearLayout.setDrawingCacheEnabled(true);
mLinearLayout.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
mLinearLayout.layout(0, 0, 642, 400);
mLinearLayout.buildDrawingCache(true);
mBitmapLayoutPreview = Bitmap.createBitmap(mLinearLayout.getDrawingCache());
mLinearLayout.setDrawingCacheEnabled(false); //lose transparency
ByteArrayOutputStream stream = new ByteArrayOutputStream();
mBitmapLayoutPreview.compress(Bitmap.CompressFormat.PNG, 100 , stream);
Canvas canvas = new Canvas(mBitmapLayoutPreview);
canvas.drawColor(Color.TRANSPARENT);
final Paint paint = new Paint();
paint.setAlpha(0);
canvas.drawBitmap(mBitmapLayoutPreview, 0, 0, paint);
Image myImg = Image.getInstance(stream.toByteArray()); //is only partially transparent
。这使得这个问题与this question on StackOverflow重复。但是 - 我还没有解决方案，因为我需要使用Ubuntu 14.04（目前只支持DNX版本）。