After shorten my .bashrc PS1 TERMINAL display name; 1 small issue occur

bpsim · 10 June 2022 17:41

Hi, I’m newbie here and this is my first post to join community.

I tried to keep my terminal minimal, so I delete username@hostname; and keep only folder name.

The .bashrc PS1 setting is '\[\033[01;32m\][\033[01;37m\]\W\[\033[01;32m\]]\$\[\033[00m\] '

The issue I am experiencing is after I typing long command and execute.
The next time if I press keyboard up two times to show previous command; there is.
There must have 9 chars of previous command persist on terminal and it can’t be erase.

I’m not allowed to include images in this post; please check my google album’s images.
photos.app.goo.gl/XrQEjpAY2WPu3vvY8

As example: this is what I typing for last few command (including the last long command).

After execute, I press keyboard up 2 times or few times to retrieve command history.
This is what it show in my terminal. ( The first 9 chars of previous command persist)

Hoping I clearly state my question; English is not my mother tongue.

dmt · 10 June 2022 19:51

Welcome.

Try this:

PS1='\[\033[01;37m\]\W\[\033[01;32m\]]\$\[\033[0m\] '

bpsim · 11 June 2022 00:00

Hi, thank you for reply.
However the code not success; issue remains same.

dmt · 11 June 2022 08:28

It works for me. Have you tried sourcing the file or restarting the shell?

source ~/.bashrc

However I did make a mistake by removing the start, this should be better.

PS1='\[\033[01;32m\][\[\033[01;37m\]\W\[\033[01;32m\]]\$\[\033[0m\] '

bpsim · 12 June 2022 15:49

Strange. Maybe I look into wrong section.
This PS1 line should be fine.

Here I include my whole .bashrc

I can see there is one line mention
printf " %-9s" "${seq0:-(default)}"

Will it be the source of the problem?
I’m not sure how to modify at this point.

#
# ~/.bashrc
#

[[ $- != *i* ]] && return

colors() {
	local fgc bgc vals seq0

	printf "Color escapes are %s\n" '\e[${value};...;${value}m'
	printf "Values 30..37 are \e[33mforeground colors\e[m\n"
	printf "Values 40..47 are \e[43mbackground colors\e[m\n"
	printf "Value  1 gives a  \e[1mbold-faced look\e[m\n\n"

	# foreground colors
	for fgc in {30..37}; do
		# background colors
		for bgc in {40..47}; do
			fgc=${fgc#37} # white
			bgc=${bgc#40} # black

			vals="${fgc:+$fgc;}${bgc}"
			vals=${vals%%;}

			seq0="${vals:+\e[${vals}m}"
			printf "  %-9s" "${seq0:-(default)}"
			printf " ${seq0}TEXT\e[m"
			printf " \e[${vals:+${vals+$vals;}}1mBOLD\e[m"
		done
		echo; echo
	done
}

[ -r /usr/share/bash-completion/bash_completion ] && . /usr/share/bash-completion/bash_completion

# Change the window title of X terminals
case ${TERM} in
	xterm*|rxvt*|Eterm*|aterm|kterm|gnome*|interix|konsole*)
		PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/\~}\007"'
		;;
	screen*)
		PROMPT_COMMAND='echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/\~}\033\\"'
		;;
esac

use_color=true

# Set colorful PS1 only on colorful terminals.
# dircolors --print-database uses its own built-in database
# instead of using /etc/DIR_COLORS.  Try to use the external file
# first to take advantage of user additions.  Use internal bash
# globbing instead of external grep binary.
safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
match_lhs=""
[[ -f ~/.dir_colors   ]] && match_lhs="${match_lhs}$(<~/.dir_colors)"
[[ -f /etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</etc/DIR_COLORS)"
[[ -z ${match_lhs}    ]] \
	&& type -P dircolors >/dev/null \
	&& match_lhs=$(dircolors --print-database)
[[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true

if ${use_color} ; then
	# Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
	if type -P dircolors >/dev/null ; then
		if [[ -f ~/.dir_colors ]] ; then
			eval $(dircolors -b ~/.dir_colors)
		elif [[ -f /etc/DIR_COLORS ]] ; then
			eval $(dircolors -b /etc/DIR_COLORS)
		fi
	fi

	if [[ ${EUID} == 0 ]] ; then
		PS1='\[\033[01;31m\][\[\033[01;36m\]\W\[\033[01;31m\]]\$\[\033[00m\] '
	else
		PS1='\[\033[01;32m\][\033[01;37m\]\W\[\033[01;32m\]]\$\[\033[00m\] '
	fi

	alias ls='ls --color=auto'
	alias grep='grep --colour=auto'
	alias egrep='egrep --colour=auto'
	alias fgrep='fgrep --colour=auto'
else
	if [[ ${EUID} == 0 ]] ; then
		# show root@ when we don't have colors
		PS1='\u@\h \W \$ '
	else
		PS1='\u@\h \w \$ '
	fi
fi

unset use_color safe_term match_lhs sh

alias cp="cp -i"                          # confirm before overwriting something
alias df='df -h'                          # human-readable sizes
alias free='free -m'                      # show sizes in MB
alias np='nano -w PKGBUILD'
alias more=less

xhost +local:root > /dev/null 2>&1

# Bash won't get SIGWINCH if another process is in the foreground.
# Enable checkwinsize so that bash will check the terminal size when
# it regains control.  #65623
# http://cnswww.cns.cwru.edu/~chet/bash/FAQ (E11)
shopt -s checkwinsize

shopt -s expand_aliases

# export QT_SELECT=4

# Enable history appending instead of overwriting.  #139609
shopt -s histappend

#
# # ex - archive extractor
# # usage: ex <file>
ex ()
{
  if [ -f $1 ] ; then
    case $1 in
      *.tar.bz2)   tar xjf $1   ;;
      *.tar.gz)    tar xzf $1   ;;
      *.bz2)       bunzip2 $1   ;;
      *.rar)       unrar x $1     ;;
      *.gz)        gunzip $1    ;;
      *.tar)       tar xf $1    ;;
      *.tbz2)      tar xjf $1   ;;
      *.tgz)       tar xzf $1   ;;
      *.zip)       unzip $1     ;;
      *.Z)         uncompress $1;;
      *.7z)        7z x $1      ;;
      *)           echo "'$1' cannot be extracted via ex()" ;;
    esac
  else
    echo "'$1' is not a valid file"
  fi
}

PATH=$PATH:.

bpsim · 12 June 2022 17:20

Or is it possible for me to have your .bashrc file?
Will it break my Manjaro system or Terminal if I replace it instead?

dmt · 12 June 2022 17:29

You only changed the root prompt, the second one needs to be modified too.

PS1='\[\033[01;32m\][\[\033[01;37m\]\W\[\033[01;32m\]]\$\[\033[0m\] '

You can have my .bashrc if you want, but it’s roughly the same, any customization is likely pretty specific to me. Best to customise your own really. I’ll happily try to help if you run into any more problems or want advice.

bpsim · 12 June 2022 18:37

Same issue.
I think at this point, I need your .bashrc to get it replace.
Then I will try to analyze what’s wrong with mine…

dmt · 12 June 2022 18:45

Try this first, it’s yours but I’ve edited and tested it.

#
# ~/.bashrc
#

[[ $- != *i* ]] && return

colors() {
	local fgc bgc vals seq0

	printf "Color escapes are %s\n" '\e[${value};...;${value}m'
	printf "Values 30..37 are \e[33mforeground colors\e[m\n"
	printf "Values 40..47 are \e[43mbackground colors\e[m\n"
	printf "Value  1 gives a  \e[1mbold-faced look\e[m\n\n"

	# foreground colors
	for fgc in {30..37}; do
		# background colors
		for bgc in {40..47}; do
			fgc=${fgc#37} # white
			bgc=${bgc#40} # black

			vals="${fgc:+$fgc;}${bgc}"
			vals=${vals%%;}

			seq0="${vals:+\e[${vals}m}"
			printf "  %-9s" "${seq0:-(default)}"
			printf " ${seq0}TEXT\e[m"
			printf " \e[${vals:+${vals+$vals;}}1mBOLD\e[m"
		done
		echo; echo
	done
}

[ -r /usr/share/bash-completion/bash_completion ] && . /usr/share/bash-completion/bash_completion

# Change the window title of X terminals
case ${TERM} in
	xterm*|rxvt*|Eterm*|aterm|kterm|gnome*|interix|konsole*)
		PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/\~}\007"'
		;;
	screen*)
		PROMPT_COMMAND='echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/\~}\033\\"'
		;;
esac

use_color=true

# Set colorful PS1 only on colorful terminals.
# dircolors --print-database uses its own built-in database
# instead of using /etc/DIR_COLORS.  Try to use the external file
# first to take advantage of user additions.  Use internal bash
# globbing instead of external grep binary.
safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
match_lhs=""
[[ -f ~/.dir_colors   ]] && match_lhs="${match_lhs}$(<~/.dir_colors)"
[[ -f /etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</etc/DIR_COLORS)"
[[ -z ${match_lhs}    ]] \
	&& type -P dircolors >/dev/null \
	&& match_lhs=$(dircolors --print-database)
[[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true

if ${use_color} ; then
	# Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
	if type -P dircolors >/dev/null ; then
		if [[ -f ~/.dir_colors ]] ; then
			eval $(dircolors -b ~/.dir_colors)
		elif [[ -f /etc/DIR_COLORS ]] ; then
			eval $(dircolors -b /etc/DIR_COLORS)
		fi
	fi

	if [[ ${EUID} == 0 ]] ; then
		PS1='\[\033[01;31m\][\[\033[01;36m\]\W\[\033[01;31m\]]\$\[\033[00m\] '
	else
		PS1='\[\033[01;32m\][\[\033[01;37m\]\W\[\033[01;32m\]]\$\[\033[00m\] '
	fi

	alias ls='ls --color=auto'
	alias grep='grep --colour=auto'
	alias egrep='egrep --colour=auto'
	alias fgrep='fgrep --colour=auto'
else
	if [[ ${EUID} == 0 ]] ; then
		# show root@ when we don't have colors
		PS1='\u@\h \W \$ '
	else
		PS1='\u@\h \w \$ '
	fi
fi

unset use_color safe_term match_lhs sh

alias cp="cp -i"                          # confirm before overwriting something
alias df='df -h'                          # human-readable sizes
alias free='free -m'                      # show sizes in MB
alias np='nano -w PKGBUILD'
alias more=less

xhost +local:root > /dev/null 2>&1

# Bash won't get SIGWINCH if another process is in the foreground.
# Enable checkwinsize so that bash will check the terminal size when
# it regains control.  #65623
# http://cnswww.cns.cwru.edu/~chet/bash/FAQ (E11)
shopt -s checkwinsize

shopt -s expand_aliases

# export QT_SELECT=4

# Enable history appending instead of overwriting.  #139609
shopt -s histappend

#
# # ex - archive extractor
# # usage: ex <file>
ex ()
{
  if [ -f $1 ] ; then
    case $1 in
      *.tar.bz2)   tar xjf $1   ;;
      *.tar.gz)    tar xzf $1   ;;
      *.bz2)       bunzip2 $1   ;;
      *.rar)       unrar x $1     ;;
      *.gz)        gunzip $1    ;;
      *.tar)       tar xf $1    ;;
      *.tbz2)      tar xjf $1   ;;
      *.tgz)       tar xzf $1   ;;
      *.zip)       unzip $1     ;;
      *.Z)         uncompress $1;;
      *.7z)        7z x $1      ;;
      *)           echo "'$1' cannot be extracted via ex()" ;;
    esac
  else
    echo "'$1' is not a valid file"
  fi
}

PATH=$PATH:.

Mine, I've removed most of my edits so it should work for you now.

#
# ~/.bashrc
#

[[ $- != *i* ]] && return

colors() {
	local fgc bgc vals seq0

	printf "Color escapes are %s\n" '\e[${value};...;${value}m'
	printf "Values 30..37 are \e[33mforeground colors\e[m\n"
	printf "Values 40..47 are \e[43mbackground colors\e[m\n"
	printf "Value  1 gives a  \e[1mbold-faced look\e[m\n\n"

	# foreground colors
	for fgc in {30..37}; do
		# background colors
		for bgc in {40..47}; do
			fgc=${fgc#37} # white
			bgc=${bgc#40} # black

			vals="${fgc:+$fgc;}${bgc}"
			vals=${vals%%;}

			seq0="${vals:+\e[${vals}m}"
			printf "  %-9s" "${seq0:-(default)}"
			printf " ${seq0}TEXT\e[m"
			printf " \e[${vals:+${vals+$vals;}}1mBOLD\e[m"
		done
		echo; echo
	done
}

[ -r /usr/share/bash-completion/bash_completion ] && . /usr/share/bash-completion/bash_completion

# Change the window title of X terminals
case ${TERM} in
	xterm*|rxvt*|Eterm*|aterm|kterm|gnome*|interix|konsole*)
		PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/\~}\007"'
		;;
	screen*)
		PROMPT_COMMAND='echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/\~}\033\\"'
		;;
esac

use_color=true

# Set colorful PS1 only on colorful terminals.
# dircolors --print-database uses its own built-in database
# instead of using /etc/DIR_COLORS.  Try to use the external file
# first to take advantage of user additions.  Use internal bash
# globbing instead of external grep binary.
safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
match_lhs=""
[[ -f ~/.dir_colors   ]] && match_lhs="${match_lhs}$(<~/.dir_colors)"

[[ -f /etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</etc/DIR_COLORS)"

[[ -z ${match_lhs}    ]] \
	&& type -P dircolors >/dev/null \
	&& match_lhs=$(dircolors --print-database)

[[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true

if ${use_color} ; then
	# Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
	if type -P dircolors >/dev/null ; then
		if [[ -f ~/.dir_colors ]] ; then
			eval $(dircolors -b ~/.dir_colors)
		elif [[ -f /etc/DIR_COLORS ]] ; then
			eval $(dircolors -b /etc/DIR_COLORS)
		fi
	fi

	if [[ ${EUID} == 0 ]] ; then
		PS1='\[\033[01;31m\][\[\033[01;36m\]\W\[\033[01;31m\]]\$\[\033[0m\] '
	else
		PS1='\[\033[01;32m\][\[\033[01;37m\]\W\[\033[01;32m\]]\$\[\033[0m\] '
	fi

	alias ls='ls --color=auto'
	alias grep='grep --colour=auto'
	alias egrep='egrep --colour=auto'
	alias fgrep='fgrep --colour=auto'
else
	if [[ ${EUID} == 0 ]] ; then
		# show root@ when we don't have colors
		PS1='\u@\h \W \$ '
	else
		PS1='\u@\h \w \$ '
	fi
fi

unset use_color safe_term match_lhs sh

alias cp="cp -i"                          # confirm before overwriting something
alias df='df -h'                          # human-readable sizes
alias free='free -m'                      # show sizes in MB
alias np='nano -w PKGBUILD'
alias more=less


# Allows root to access X?
# Which is apparently not advisable
# Test wehether we need this sometime
#xhost +local:root > /dev/null 2>&1

complete -cf sudo

# Bash won't get SIGWINCH if another process is in the foreground.
# Enable checkwinsize so that bash will check the terminal size when
# it regains control.  #65623
# http://cnswww.cns.cwru.edu/~chet/bash/FAQ (E11)
shopt -s checkwinsize

shopt -s expand_aliases

# Enable history appending instead of overwriting.  #139609
#shopt -s histappend

#
# # ex - archive extractor
# # usage: ex <file>
extract ()
{
  if [ -f "$1" ] ; then
    case $1 in
      *.tar.bz2)   tar xjf "$1"   ;;
      *.tar.gz)    tar xzf "$1"   ;;
      *.bz2)       bunzip2 "$1"   ;;
      *.rar)       unrar x "$1"     ;;
      *.gz)        gunzip $1    ;;
      *.tar)       tar xf "$1"    ;;
      *.tbz2)      tar xjf "$1"   ;;
      *.tgz)       tar xzf "$1"   ;;
      *.zip)       unzip $1     ;;
      *.Z)         uncompress "$1";;
      *.7z)        7z x "$1"      ;;
      *.tar.zst)   tar -I zstd -xvf "$1" ;;
      *.zst)       unzstd "$1" ;;
      *)           echo "'$1' cannot be extracted via ex()" ;;
    esac
  else
    echo "'$1' is not a valid file"
  fi
}


alias lh="ls -d $@.*"
alias lhg="ls --group-directories-first -d $@.*"


export HISTSIZE=500
export HISTFILESIZE=500
export HISTCONTROL=ignoreboth
export EDITOR=nano
export GIT_EDITOR=nano

alias gitlog='git log --oneline --decorate --graph --all'
alias ls='ls --color=always'
alias chown='chown --no-dereference --preserve-root'
alias sudo='sudo '
alias yay='yay --batchinstall --sudoloop'

bpsim · 12 June 2022 19:34

I tried both. For now not 100% solved.
If I keyed in list of history command; and then I’m using up and down to find the old history.
At some point, it might show up.
Please check my google album; I just renew to new images with your code.
photos.app.goo.gl/XrQEjpAY2WPu3vvY8

dmt · 12 June 2022 20:29

Sorry I’m not sure what you mean.

So it’s partly solved?

Do you mean that there are mal-formed commands still in your history?

I’m going to eat, I’ll be back in an hour or two.

bpsim · 13 June 2022 03:32

I think I manage to get it work as what I want with this code.

PS1='\[\033[01;32m\][\[\033[00m\]\W\[\033[01;32m\]]\$\[\033[00m\] '

I google around; and there is one post explain it:
unix.stackexchange .com/questions/105958/terminal-prompt-not-wrapping-correctly

dmt · 13 June 2022 18:21

Did you remember to source ~/.bashrc or open a new terminal after editing your .bashrc?

Everything I posted works, so if the issue persists for you then something else is involved.

That post explains that one of the colour codes wasn’t fully enclosed, but we already fixed that.

Your new version is the same as mine but it resets the formatting for the directory, ie uses a different colour. If one works then both work.

Anyway I’m glad it’s working for you now.

bpsim · 14 June 2022 15:27

Thanks for your every reply.
Not sure why it’s not working before.
Maybe I didn’t restart bash correctly before.

Again, thanks for your help in this post.