.bashrc: syntax error: unexpected end of file - bash

Question

I didn't know how to solve this error.
bash: /home/dery/.bashrc: line 168: syntax error: unexpected end of file
Here is my .bashrc:
case $- in
*i*) ;;
*) return;;
esac
HISTCONTROL=ignoreboth
shopt -s histappend
HISTSIZE=1000
HISTFILESIZE=2000
shopt -s checkwinsize
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
debian_chroot=$(cat /etc/debian_chroot)
fi
case "$TERM" in
xterm-color) color_prompt=yes;;
esac
if [ -n "$force_color_prompt" ]; then
if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
color_prompt=yes
else
color_prompt=
fi
fi
if [ "$color_prompt" = yes ]; then
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u#\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
PS1='${debian_chroot:+($debian_chroot)}\u#\h:\w\$ '
fi
unset color_prompt force_color_prompt
if [ -x /usr/bin/dircolors ]; then
test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
alias ls='ls --color=auto'
alias grep='grep --color=auto'
alias fgrep='fgrep --color=auto'
alias egrep='egrep --color=auto'
fi
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'
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$//'\'')"'
if [ -f ~/.bash_aliases ]; then
. ~/.bash_aliases
fi
if ! shopt -oq posix; then
if [ -f /usr/share/bash-completion/bash_completion ]; then
. /usr/share/bash-completion/bash_completion
elif [ -f /etc/bash_completion ]; then
. /etc/bash_completion
fi
fi
case "$TERM" in
xterm*|rxvt*)
PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\$(print_title)\a\]$PS1"
__el_LAST_EXECUTED_COMMAND=""
print_title ()
{
__el_FIRSTPART=""
__el_SECONDPART=""
if [ "$PWD" == "$HOME" ]; then
__el_FIRSTPART=$(gettext --domain="pantheon-files" "Home")
else
if [ "$PWD" == "/" ]; then
__el_FIRSTPART="/"
else
__el_FIRSTPART="${PWD##*/}"
fi
fi
if [[ "$__el_LAST_EXECUTED_COMMAND" == "" ]]; then
echo "$__el_FIRSTPART"
return
fi
#trim the command to the first segment and strip sudo
if [[ "$__el_LAST_EXECUTED_COMMAND" == sudo* ]]; then
__el_SECONDPART="${__el_LAST_EXECUTED_COMMAND:5}"
__el_SECONDPART="${__el_SECONDPART%% *}"
else
__el_SECONDPART="${__el_LAST_EXECUTED_COMMAND%% *}"
fi
printf "%s: %s" "$__el_FIRSTPART" "$__el_SECONDPART"
}
put_title()
{
__el_LAST_EXECUTED_COMMAND="${BASH_COMMAND}"
printf "\033]0;%s\007" "$1"
}
# Show the currently running command in the terminal title:
# http://www.davidpashley.com/articles/xterm-titles-with-bash.html
update_tab_command()
{
# catch blacklisted commands and nested escapes
case "$BASH_COMMAND" in
*\033]0*|update_*|echo*|printf*|clear*|cd*)
__el_LAST_EXECUTED_COMMAND=""
;;
*)
put_title "${BASH_COMMAND}"
;;
esac
}
preexec_functions+=(update_tab_command)
;;
*)
;;

Answer 1

You forgot to close your case at the end of the script with esac. This leaves an unterminated case, causing Bash to reach the end of the file looking for one, triggering this error.