#!/bin/bash


area[11]=23
area[13]=37
area[51]=UFOs

# ¹è¿­ ¸â¹öµéÀº ÀÎÁ¢ÇØ Àְųª ¿¬¼ÓÀûÀÌÁö ¾Ê¾Æµµ µË´Ï´Ù.

# ¸î¸î ¸â¹ö¸¦ ÃʱâÈ­ µÇÁö ¾ÊÀº ä ³öµÖµµ µË´Ï´Ù. 
# ¹è¿­ Áß°£ÀÌ ºñ¾î À־ ±¦Âú½À´Ï´Ù.


echo -n "area[11] = "
echo ${area[11]}    #  {Áß°ýÈ£}°¡ ÇÊ¿ä

echo -n "area[13] = "
echo ${area[13]}

echo "area[51]ÀÇ °ªÀº ${area[51]} ÀÔ´Ï´Ù."

# ÃʱâÈ­ ¾È µÈ ¹è¿­ º¯¼ö´Â ºó Ä­À¸·Î ÂïÈü´Ï´Ù.
echo -n "area[43] = "
echo ${area[43]}
echo "(area[43]Àº ÇÒ´çµÇÁö ¾Ê¾Ò½À´Ï´Ù)"

echo

# µÎ ¹è¿­ º¯¼öÀÇ ÇÕÀ» ¼¼ ¹ø° ¹è¿­ º¯¼ö¿¡ ÇÒ´çÇÕ´Ï´Ù.
area[5]=`expr ${area[11]} + ${area[13]}`
echo "area[5] = area[11] + area[13]"
echo -n "area[5] = "
echo ${area[5]}

area[6]=`expr ${area[11]} + ${area[51]}`
echo "area[6] = area[11] + area[51]"
echo -n "area[6] = "
echo ${area[6]}
# ¹®ÀÚ¿­¿¡ Á¤¼ö¸¦ ´õÇÏ´Â °ÍÀÌ Çã¿ëµÇÁö ¾Ê±â ¶§¹®¿¡ µ¿ÀÛÇÏÁö ¾Ê½À´Ï´Ù.

echo; echo; echo

# -----------------------------------------------------------------
# ´Ù¸¥ ¹è¿­ÀÎ "area2"¸¦ º¾½Ã´Ù.
# ¹è¿­ º¯¼ö¿¡ °ªÀ» ÇÒ´çÇÏ´Â ´Ù¸¥ ¹æ¹ýÀ» º¸¿©ÁÝ´Ï´Ù...
# array_name=( XXX YYY ZZZ ... )

area2=( zero one two three four )

echo -n "area2[0] = "
echo ${area2[0]}
# ¾ÆÇÏ, ¹è¿­ À妽º°¡ 0ºÎÅÍ ½ÃÀÛÇϴ±º¿ä(¹è¿­ÀÇ Ã¹¹ø° ¿ä¼Ò´Â [0]ÀÌÁö [1]ÀÌ ¾Æ´Õ´Ï´Ù).

echo -n "area2[1] = "
echo ${area2[1]}    # [1]Àº ¹è¿­ÀÇ µÎ¹ø° ¿ä¼ÒÀÔ´Ï´Ù.
# -----------------------------------------------------------------

echo; echo; echo

# -----------------------------------------------
# ¶Ç ´Ù¸¥ ¹è¿­ "area3".
# ¹è¿­ º¯¼ö¿¡ °ªÀ» ÇÒ´çÇÏ´Â ¶Ç ´Ù¸¥ ¹æ¹ý...
# array_name=([xx]=XXX [yy]=YYY ...)

area3=([17]=seventeen [24]=twenty-four)

echo -n "area3[17] = "
echo ${area3[17]}

echo -n "area3[24] = "
echo ${area3[24]}
# -----------------------------------------------

exit 0