#!/bin/bash
# ¿À·¡µÈ ½Ã½ºÅÛ¿¡¼­´Â #!/bin/bash2 ¶ó°í ÇØ¾ß µË´Ï´Ù.

shopt -s expand_aliases
# ÀÌ ¿É¼ÇÀ» ²À ½á¾ß º°ÄªÀ» È®Àå½Ãų ¼ö ÀÖ½À´Ï´Ù.


# ¸ÕÀú Àç¹Ì·Î Çϳª Çغ¸ÁÒ.
alias Jesse_James='echo "\"Alias Jesse James\" was a 1959 comedy starring Bob Hope."'
Jesse_James

echo; echo; echo;

alias ll="ls -l"
# º°ÄªÀ» Á¤ÀÇÇÏ·Á¸é ÀÛÀºµû¿ÈÇ¥(')³ª Å«µû¿ÈÇ¥(") Áß Çϳª¸¦ ½á¾ß µË´Ï´Ù.

echo "º°ÄªÀÎ \"ll\" Çغ¸±â:"
ll /usr/X11R6/bin/mk*   #* Àß µË´Ï´Ù.

echo

directory=/usr/X11R6/bin/
prefix=mk*  # ¿ÍÀϵå Ä«µå°¡ ¹®Á¦¸¦ ÀÏÀ¸Å°´ÂÁö ÇÑ ¹ø º¾½Ã´Ù.
echo "Variables \"directory\" + \"prefix\" = $directory$prefix"
echo

alias lll="ls -l $directory$prefix"

echo "º°ÄªÀÎ \"lll\" Çغ¸±â:"
lll         # /usr/X11R6/bin ¿¡¼­ mk ·Î ½ÃÀÛÇÏ´Â ¸ðµç ÆÄÀϵéÀÇ ¸ðµç(long) Á¤º¸¸¦ º¸¿©ÁÝ´Ï´Ù.
# º°ÄªÀº ¿ÍÀϵå Ä«µå¸¦ Æ÷ÇÔÇÑ º¯¼öÀÇ ¿¬°áÀ» Àß Ã³¸®ÇÕ´Ï´Ù.




TRUE=1

echo

if [ TRUE ]
then
  alias rr="ls -l"
  echo "º°Äª \"rr\" À» if/then ¹® ¾È¿¡¼­ Çغ¸±â:"
  rr /usr/X11R6/bin/mk*   #* ¿¡·¯ ¸Þ¼¼Áö°¡ ³ª¿É´Ï´Ù!
  # º°ÄªÀº º¹ÇÕ¹® ¾È¿¡¼­ È®ÀåµÇÁö ¾Ê½À´Ï´Ù.
  echo "ÇÏÁö¸¸, ÀÌ¹Ì È®ÀåµÈ º°ÄªÀº ÀνÄÇÕ´Ï´Ù:"
  ll /usr/X11R6/bin/mk*
fi  

echo

count=0
while [ $count -lt 3 ]
do
  alias rrr="ls -l"
  echo "º°Äª \"rrr\" À» \"while\" ·çÇÁ¾È¿¡¼­ Çغ¸±â:"
  rrr /usr/X11R6/bin/mk*   #* ¿ª½Ã È®ÀåµÇÁö ¾Ê½À´Ï´Ù.
  let count+=1
done 

echo; echo

alias xyz="cat $1"   # º°Äª¿¡¼­ À§Ä¡ ¸Å°³º¯¼ö ½Ãµµ.
xyz                  # Bash ¹®¼­´Â ÀÌ·± ½Ãµµ¸¦ ÇÏÁö ¸»¶ó°í Á¦¾ÈÇÏ°í ÀÖ½À´Ï´Ù¸¸,
# ÀÌ ½ºÅ©¸³Æ®¿¡ ÆÄÀϸíÀ» Á༭ µ¹¸®¸é Á¦´ë·Î µÇ´Â°Íó·³ º¸ÀÔ´Ï´Ù.

exit 0