#! /bin/bash
#
# ÇöÀç µð·ºÅ丮ÀÇ ¸ðµç ÆÄÀÏ À̸§À» ´Ù ¼Ò¹®ÀÚ·Î ¹Ù²Þ
#
# ¿ø·¡ John DuboisÀÇ ½ºÅ©¸³Æ®¸¦ Chet Ramey°¡ bash¿ëÀ¸·Î ¼öÁ¤ÇÑ °Í¿¡¼­ 
# ¿µ°¨À» ¾ò¾î º» ¹®¼­ÀÇ ÀúÀÚÀÎ Mendel Cooper°¡ »ó´çÈ÷ °£´ÜÇÏ°Ô ¼öÁ¤ÇßÀ½.


for filename in *                # ÇöÀç µð·ºÅ丮ÀÇ ¸ðµç ÆÄÀÏÀ» Ž»ö.
do
   fname=`basename $filename`
   n=`echo $fname | tr A-Z a-z`  # À̸§À» ¼Ò¹®ÀÚ·Î ¹Ù²Ù°í,
   if [ "$fname" != "$n" ]       # ¿ø·¡ ¼Ò¹®ÀÚ°¡ ¾Æ´Ñ ÆÄÀϸ¸ ¼Ò¹®ÀÚ·Î ¹Ù²Þ.
   then
     mv $fname $n
   fi  
done   

exit 0


# "exit" ¶§¹®¿¡ ´ÙÀ½ ÄÚµå´Â ½ÇÇàµÇÁö ¾Ê½À´Ï´Ù.
#--------------------------------------------#
# ÀÌ ºÎºÐÀ» ½ÇÇà½ÃÅ°·Á¸é À§ ½ºÅ©¸³Æ®¸¦ ¸ðµÎ Áö¿ì¼¼¿ä.

# À§ ½ºÅ©¸³Æ®´Â ÆÄÀÏÀ̸§¿¡ °ø¹éÀ̳ª ´º¶óÀÎÀÌ µé¾î ÀÖÀ» ¶§¿¡´Â Á¦´ë·Î µ¿ÀÛÇÏÁö ¾Ê½À´Ï´Ù.

# ±×·¡¼­ Stephane Chazelas °¡ ´ÙÀ½ ½ºÅ©¸³Æ®¸¦ Á¦¾ÈÇØ ÁÖ¾ú½À´Ï´Ù.


for filename in *    # "*"´Â "/"°¡ µé¾î ÀÖ´Â ÆÄÀÏÀº ¸®ÅÏÇÏÁö ¾Ê±â ¶§¹®¿¡
                     # basename À» ¾µ ÇÊ¿ä°¡ ¾ø½À´Ï´Ù.
do n=`echo "$filename/" | tr '[:upper:]' '[:lower:]'`
#                             POSIX ¹®Àڼ ǥ±â¹ý.
#                    ¸í·É¾î ġȯÀ» Çصµ ²¿¸®ºÎºÐ(trailing)ÀÇ ´º¶óÀÎÀÌ 
#                    Áö¿öÁöÁö ¾Ê±â ¶§¹®¿¡ / ¸¦ ºÙ¿´½À´Ï´Ù.
   # º¯¼ö ġȯ:
   n=${n%/}          # ÆÄÀÏÀ̸§¿¡¼­ ¾Æ±î ºÙÀÎ / ¸¦ Á¦°Å.
   [[ $filename == $n ]] || mv "$filename" "$n"
                     # ÆÄÀÏÀ̸§ÀÌ ÀÌ¹Ì ¼Ò¹®ÀÚÀÎÁö È®ÀÎ.
done

exit 0