bash 阅读：非法选项 -d
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read: Illegal option -d
提问by mikewilliamson
Here is the offending part of my script:
这是我的脚本中令人反感的部分：
read -d '' TEXT <<'EOF'
Some Multiline
text that
I would like
in
a
var
EOF
echo "$TEXT" > ~/some/file.txt
and the error:
和错误：
read: 175: Illegal option -d
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
我到处都使用这个 read -d 并且它工作正常。不知道为什么现在不开心。我在 Ubuntu 10.10 上运行脚本
Fixes? Workarounds?
修复？解决方法？
回答by paxdiablo
If you run shand then try that command, you get:
如果您运行sh然后尝试该命令，您将得到：
read: 1: Illegal option -d
If you do it while still in bash, it works fine.
如果您还在 中执行此操作bash，则效果很好。
I therefore deduce that your script is notrunning under bash.
因此，我推断您的脚本没有在bash.
Make sure that your script begins with the line:
确保您的脚本以以下行开头：
#!/usr/bin/env bash
(or equivalent) so that the correct shell is running the script.
（或等效的）以便正确的 shell 运行脚本。
Alternatively, if you cannot do that (because the script is not a bashone), just be aware that -dis a bashfeature and may not be available in other shells. In that case, you will need to find another way.
或者，如果您不能这样做（因为脚本不是bash一个），请注意这-d是一项bash功能，可能在其他 shell 中不可用。在这种情况下，您将需要找到另一种方法。
回答by hobbs
The -doption to readis a feature unique to bash, not part of the POSIX standard (which only specifies -rand -poptions to read). When you run your script with shon Ubuntu, it's getting run with dash, which is a POSIX shell, and not bash. If you want the script to run under bash then you should run it with bash, or give it a #!/bin/bashshebang. Otherwise, it should be expected to run under any POSIX sh.
该-d选项read是一种功能独特的来砸，而不是POSIX标准的一部分（这仅指定-r和-p选项read）。当你sh在 Ubuntu 上运行你的脚本时，它会用 dash 运行，它是一个 POSIX shell，而不是 bash。如果您希望脚本在 bash 下运行，那么您应该使用 bash 运行它，或者给它一个#!/bin/bashshebang。否则，它应该可以在任何 POSIX sh 下运行。
