Re: how to workaroun 'nl' being added to input-line after 49 characters....

[Dennis Williamson]

On Sun, Feb 13, 2011 at 3:50 PM, Linda Walsh <bash@tlinx.org> wrote:
> I'm having a problem, I think,  due to my setting the prompt in
> 'root' mode, to a different color.  This results in me being able to
> enter only 49 characters on the input line before it wraps to the next
> line.
>
> I add an open and close sequence to the normal prompt (which has no
> weird problems with changing the input line length):
>
>
>   #specific to linux console compat emulations
>   _CRed="$(echo -en "\033[31m")"  #Red
>   _CRST="$(echo -en "\033[0m")"   #Reset
>   _CBLD="$(echo -en "\033[1m")"   #Bold
>   export _prompt_open=""
>   export _prompt_close=">"
>   [[ $UID -eq 0 ]] && {
>       _prompt_open="$_CBLD$_CRed"
>       _prompt_close="#$_CRST"
>   }
>   export PS1='${_prompt_open}$(spwd "$PWD")${_prompt_close} ';
>
> Is there some easy way to tell bash either to not keep track of what it
> thinks is the screen width (and just allow it to wrap, if that's possible),
> or to reset bash's idea of where it thinks it is on the line?
>
> Thanks!
> Linda
>
>
>
>

Here's another way to do it:

#specific to linux console compat emulations
_CRed='\[\033[31m\]'  #Red
_CRST='\[\033[0m\]'  #Reset
_CBLD='\[\033[1m\]'  #Bold
export _prompt_open=""
export _prompt_close=">"
[[ $UID -eq 0 ]] && {
    _prompt_open="$_CBLD$_CRed"
    _prompt_close="#$_CRST"
}
export PS1="${_prompt_open}$(spwd "$PWD")${_prompt_close} "

Note the simplification of the variable assignments and the change in
quotes in the final command. Also, it's probably not necessary to do
any of those exports.