VIM: disabling the cursor/arrow keys, but only for navigation

Question

inoremap       
inoremap     
inoremap     
inoremap    
noremap             


        

Answer 1

The code you have posted should not disable history navigation in command line mode, are you sure you don't have cnoremap <Up> <Nop> or noremap! <Up> <Nop> somewhere? Try verbose cmap <Up> it should show you whether <Up> key is redefined for command line mode.

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If when saying «command bar» you meant command-line window, you could try the following:

nnoremap <expr> <Up> ((bufname("%") is# "[Command Line]")?("\<Up>"):(""))