问题描述
当我写一个简单的脚本,并通过它来runhaskell,它工作正常,但不是当我添加家当,并尝试直接执行它。脚本是这样的:
When I write a simple script and pass it to runhaskell, it works fine, but not when I add a shebang and try executing it directly. The script is this:
#!/usr/local/bin/runhaskell
import Data.List (intercalate)
main :: IO ()
main = putStrLn $ intercalate " " $ map show [1..10]
如果我尝试 $ runhaskell count.hs
Bash打印 1 2 3 4 5 6 7 8 9 10
作为预期,但如果我尝试 ./ count.hs
我收到以下错误:
If I try $ runhaskell count.hs
bash prints 1 2 3 4 5 6 7 8 9 10
as expected, but if I try ./count.hs
I get the following error:
./count.hs: line 3: syntax error near unexpected token `('
./count.hs: line 3: `import Data.List (intercalate)'
时对原产于bash或runhaskell这个错误?如何解决呢?
Is this error originating in bash or runhaskell? And how do I fix it?
推荐答案
请尝试使用:
#!/usr/bin/env runhaskell
...
请注意:这与OSX功能/问题,即家当间preters都要求是二进制文件。见Shebang指向脚本(也有家当)被有效地忽略了解更多详情。
Note: this is a feature/issue with OSX where shebang interpreters are required to be binaries. See Shebang pointing to script (also having shebang) is effectively ignored for more details.
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