The result of the last command is bound to the variable it.
You can
writeFile "filename.txt" $ show it
or
writefile "filename.txt" $ show $ <statement>
Question
I have a Haskell function which returns quite a large output. (In fact, beyond the console's buffer size.) Is there any way GHCI output can be automatically saved to an external txt file rather than simply displayed?
Solution
The result of the last command is bound to the variable it.
You can
writeFile "filename.txt" $ show it
or
writefile "filename.txt" $ show $ <statement>