Kshrc custom prompt will not work


 
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# 1  
Old 10-27-2019
Kshrc custom prompt will not work

So Yesterday I switched from Solus Linux to Fedora Linux 30, but I forgot to backup some of my dotfiles including kshrc. I am fairly new to Korn shell and do not know it well, but through memory I was able to at least get this. I did use code from several different source to recreate it. The only problem is that my prompt does not change. When I was on Solus Linux I used the korn shell source from github and now I am using Korn Shell from the copr latest ksh repo for Fedora. If anyone could help me out with my config that would be great.
The way the prompt should look like is: zoomer@fedora:[/u/l/bin]:$
Code:
## Arrow Key Functions
set -o emacs
alias __A=$(print '\0020') # ^P = up = previous command
alias __B=$(print '\0016') # ^N = down = next command
alias __C=$(print '\0006') # ^F = right = forward a character
alias __D=$(print '\0002') # ^B = left = back a character
alias __H=$(print '\0001') # ^A = home = beginning of line

## Collapsed Directory
_collapsed_pwd() {
  echo $(pwd | perl -pe '
   BEGIN {
      binmode STDIN,  ":encoding(UTF-8)";
      binmode STDOUT, ":encoding(UTF-8)";
   }; s|^$ENV{HOME}|~|g; s|/([^/.])[^/]*(?=/)|/$1|g; s|/\.([^/])[^/]*(?=/)|/.$1|g
')
}

## Reset to normal: \033[0m
NORM="\033[0m"

## Colors:
BLACK="\033[0;30m"
GRAY="\033[1;30m"
RED="\033[0;31m"
LRED="\033[1;31m"
GREEN="\033[0;32m"
LGREEN="\033[1;32m"
YELLOW="\033[0;33m"
LYELLOW="\033[1;33m"
BLUE="\033[0;34m"
LBLUE="\033[1;34m"
PURPLE="\033[0;35m"
PINK="\033[1;35m"
CYAN="\033[0;36m"
LCYAN="\033[1;36m"
LGRAY="\033[0;37m"
WHITE="\033[1;37m"

## Backgrounds
BLACKB="\033[0;40m"
REDB="\033[0;41m"
GREENB="\033[0;42m"
YELLOWB="\033[0;43m"
BLUEB="\033[0;44m"
PURPLEB="\033[0;45m"
CYANB="\033[0;46m"
GREYB="\033[0;47m"

## Attributes:
UNDERLINE="\033[4m"
BOLD="\033[1m"
INVERT="\033[7m"

## Cursor movements
CUR_UP="\033[1A"
CUR_DN="\033[1B"
CUR_LEFT="\033[1D"
CUR_RIGHT="\033[1C"

## Start of display (top left)
SOD="\033[1;1f"

PS1="$(echo "${GREEN}${USER}${NORM}@${HOSTNAME}:[${GREEN}$(_collapsed_pwd)${NORM}:$")"

# 2  
Old 10-27-2019
Try -e on your echo command and escape the $( from _collapsed_pwd like this:

Code:
PS1="$(echo -e "${GREEN}${USER}${NORM}@${HOSTNAME}:[${GREEN}\$(_collapsed_pwd)${NORM}]:$")"

This User Gave Thanks to Chubler_XL For This Post:
# 3  
Old 10-28-2019
In ksh93 you can have:
Code:
PS1=$(printf "${GREEN}%s${NORM}@%s:${GREEN}%s${NORM}:$ " '$USER' '$HOSTNAME' '$(_collapsed_pwd)')

The ${USER} ${HOSTNAME} and $(_collapsed_pwd) are in 'ticks' for late evaluation.
Most complicated is the late invocation of the function (I had ran some tests: it only works in ksh93 not ksh88).
BTW there is an echo too many, resulting in double evaluation. Should be
Code:
_collapsed_pwd() {
  pwd | perl -pe '
   BEGIN {
      binmode STDIN,  ":encoding(UTF-8)";
      binmode STDOUT, ":encoding(UTF-8)";
   }; s|^$ENV{HOME}|~|g; s|/([^/.])[^/]*(?=/)|/$1|g; s|/\.([^/])[^/]*(?=/)|/.$1|g
'
}


Last edited by MadeInGermany; 10-28-2019 at 09:30 AM.. Reason: consolidated into one printf command
This User Gave Thanks to MadeInGermany For This Post:
# 4  
Old 10-28-2019
So I tried what both of you said and it still does not do anything. I looked and I am running KSH 2020.0.0 Stable, which is the latest release. I tried to compile KSH93u and KSH93v from the ast github but both failed due to lack of nmake. Every time I run ksh the prompt is still $.
# 5  
Old 10-28-2019
Does
Code:
 . $HOME/.kshrc

work?
# 6  
Old 10-28-2019
Yes it does work. Is there any way I can make it run on startup of ksh?
# 7  
Old 10-28-2019
Hmm, I suggest to consult the man page.
Code:
man ksh

And /search for ENV
What does it say?
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