阅读:非法选项-d [英] read: Illegal option -d

问题描述

这是我脚本中令人讨厌的部分:

Here is the offending part of my script:

read -d '' TEXT <<'EOF'
Some Multiline
text that
I would like
in 
a 
var
EOF

echo "$TEXT" > ~/some/file.txt

和错误:

read: 175: Illegal option -d

我在所有地方都使用这个读-d，它工作正常.不知道为什么现在不开心.我在Ubuntu 10.10上运行脚本

I use this read -d all over the place and it works fine. Not sure why its not happy now. I'm running the script on Ubuntu 10.10

修正?解决方法?

推荐答案

如果运行sh，然后尝试执行该命令，则会得到:

If you run sh and then try that command, you get:

read: 1: Illegal option -d

如果您仍在bash中进行此操作，则效果很好.

If you do it while still in bash, it works fine.

因此，我推断您的脚本 not 在bash下运行.

I therefore deduce that your script is not running under bash.

确保您的脚本以以下行开头:

Make sure that your script begins with the line:

#!/usr/bin/env bash

(或等效名称)，以便正确的shell运行脚本.

(or equivalent) so that the correct shell is running the script.

或者，如果您不能执行此操作(因为该脚本不是bash脚本)，则请注意-d是bash功能，并且可能在其他Shell中不可用.在这种情况下，您将需要寻找另一种方法.

Alternatively, if you cannot do that (because the script is not a bash one), just be aware that -d is a bash feature and may not be available in other shells. In that case, you will need to find another way.

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