ghci configuration file

Question

I'm using ghci 6.8.2 on Ubuntu. Does ghci use a configuration file where we can do some initial setup?. E.g.: :set prompt "ghci> ".

score 75 · Accepted Answer · answered Oct 19 '10 at 12:06

75

Have you tried adding :set prompt "ghci> " to ~/.ghci?

answered Oct 19 '10 at 12:06

hvr

Sorry for such a basic question, but I can't understand: What is the full name of the .ghci file? And where exactly to put that file? I tried putting this file in the neighbourhood of a haskell code file, but the ghci didn't seem to read that .ghci file. – awllower Feb 26 '15 at 05:14
In Windows, you put the file in your user directory. E.g. `C:\Users\YourUsername\`. – MasterMastic Apr 02 '15 at 08:09

score 47 · Answer 2 · edited Jun 29 '20 at 19:14

47

Having applied @hvr's answer I got the following warning:

*** WARNING: ~/.ghci is writable by someone else, IGNORING!

The solution is chmod g-w ~/.ghci.

edited Jun 29 '20 at 19:14

schuelermine

answered Jul 14 '13 at 03:05

sjakobi

score 1 · Answer 3 · answered Nov 01 '18 at 22:00

1

In my ~/.ghci configuration file. I have the following line:

:set prompt "\ESC[0;34m\STX%s\n\ESC[1;31m\STXλ> \ESC[m\STX"

And here is how my ghci prompt looks like:

In that config file, I temporarily commented out :set +m.

answered Nov 01 '18 at 22:00

daparic

That nice lambda doesn't work for me in ghci, while it does work in my terminal :/ – xeruf Mar 04 '21 at 16:40
adding it to `~/.ghci` did absolutely nothing for me - GHCi says `Loaded GHCi configuration from /home//.ghci` but the prompt didn't change :/ – xeruf Mar 04 '21 at 16:51

score 0 · Answer 4 · edited Jun 12 '20 at 04:54

0

In @truthadjustr's answer the prelude comes every time you run any command.

:set prompt "\ESC[1;31m\STXλ> \ESC[m\STX"

This command solves the problem.

edited Jun 12 '20 at 04:54

Ryan M

answered Jun 12 '20 at 03:51

Abhinav

that was his goal - to still show the packages - a feature, not a bug – xeruf Mar 04 '21 at 17:07

4 Answers4