Ubuntu shell does not show the current path

In my Ubuntu 12.04, the prompt always show the following only (no matter what path I’m in):

-bash-4.2#

I guessed it is because .bashrc or .bash_profile is configured incorrectly.

My .bashrc is as follow:

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
[ -z "$PS1" ] && return

# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth

# append to the history file, don't overwrite it
shopt -s histappend

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000

# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize

# If set, the pattern "**" used in a pathname expansion context will
# match all files and zero or more directories and subdirectories.
#shopt -s globstar

# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
    xterm-color) color_prompt=yes;;
esac

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
    # We have color support; assume it's compliant with Ecma-48
    # (ISO/IEC-6429). (Lack of such support is extremely rare, and such
    # a case would tend to support setf rather than setaf.)
    color_prompt=yes
    else
    color_prompt=
    fi
fi

if [ "$color_prompt" = yes ]; then
    PS1='${debian_chroot:+($debian_chroot)}[33[01;32m]<a href="https://getridbug.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d2a792">[email protected]</a>h[33[00m]:[33[01;34m]w[33[00m]$ '
else
    PS1='${debian_chroot:+($debian_chroot)}<a href="https://getridbug.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="423702">[email protected]</a>h:w$ '
fi
unset color_prompt force_color_prompt

# If this is an xterm set the title to <a href="https://getridbug.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="3c494f594e7c54534f48">[email protected]</a>:dir
case "$TERM" in
xterm*|rxvt*)
    PS1="[e]0;${debian_chroot:+($debian_chroot)}<a href="https://getridbug.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="671227">[email protected]</a>h: wa]$PS1"
    ;;
*)
    ;;
esac

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
    #alias dir='dir --color=auto'
    #alias vdir='vdir --color=auto'

    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi

# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'

# Add an "alert" alias for long running commands.  Use like so:
#   sleep 10; alert
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '''s/^s*[0-9]+s*//;s/[;&|]s*alert$//''')"'

# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.

if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if [ -f /etc/bash_completion ] && ! shopt -oq posix; then
    . /etc/bash_completion
fi

and my .bash_profile is as follow:

JAVA_HOME=$(readlink -f /usr/bin/javac | sed "s:/bin/javac::")

How do I restore the default settings (to show the current directory) in my shell?

UPDATE: Here is the output of bash -x:

http://pastebin.com/HT4xncGw (way too long to paste here)

Contents hide

Answers:

Method 1

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

This is normally specified in the file /etc/bash.bashrc on Ubuntu systems. The environment variable $PS1 sets the values of the shell prompt. This is Ubuntu’s default prompt:

PS1='${debian_chroot:+($debian_chroot)}<a href="https://getridbug.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="6f1a2f">[email protected]</a>h:w$ '

Copy that line in your /etc/bash.bashrc (maybe it is already there, but commented). However, after that, open a new bash process and your prompt should be set again.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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