리눅스 명령어가 갑자기 잘못되었어요 ㅡㅡ;;;

# /etc/skel/.bashrc:
# $Header: /home/cvsroot/gentoo-src/rc-scripts/etc/skel/.bashrc,v 1.8 2003/02/28 15:45:35 azarah Exp $

# This file is sourced by all *interactive* bash shells on startup. This
# file *should generate no output* or it will break the scp and rcp commands.

# colors for ls, etc.
eval `dircolors -b /etc/DIR_COLORS`
alias d="ls --color"
alias ls="ls --color=auto -F"
alias ll="ls --color -l"
export LANG=ko_KR.eucKR
export GTK_IM_MODULE=hangul3f

export PS1='\[\033[01;32m\]\u@\h \[\033[01;34m\]\W \$ \[\033[00m\]'
# Change the window title of X terminals
case $TERM in
xterm*|rxvt|Eterm|eterm)
PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\007"'
;;
screen)
PROMPT_COMMAND='echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\033\\"'
;;
esac

##uncomment the following to activate bash-completion:
#[ -f /etc/profile.d/bash-completion ] && source /etc/profile.d/bash-completion