#!/bin/bash
# printf demo

PI=3.14159265358979
DecimalConstant=31373
Message1="¾È³çµé ÇϽŰ¡,"
Message2="Áö±¸ÀÎ ¿©·¯ºÐ."

echo

printf "Pi¸¦ ¼Ò¼öÁ¡ ÀÌÇÏ 2 ÀÚ¸®¸¸ Ç¥½Ã = %1.2f" $PI
echo
printf "Pi¸¦ ¼Ò¼öÁ¡ ÀÌÇÏ 9 ÀÚ¸®¸¸ Ç¥½Ã = %1.9f" $PI  # ¹Ý¿Ã¸²ÀÌ Àß µÆÁÒ?

printf "\n"                                  # ¶óÀÎÇǵ带 ÂïÀ½.
                                             # 'echo'¿Í ¶È°°À½.

printf "»ó¼ö = \t%d\n" $DecimalConstant  # ÅÇÀÌ µé¾î°¬ÁÒ(\t)

printf "%s %s \n" $Message1 $Message2

echo

# ==========================================#
# C ÇÔ¼öÀÎ 'sprintf'¸¦ ½Ã¹Ä·¹À̼Ç.
# Çü½ÄÈ­µÈ ¹®ÀÚ¿­·Î º¯¼ö¸¦ ·Îµù.

echo 

Pi12=$(printf "%1.12f" $PI)
echo "Pi¸¦ ¼Ò¼öÁ¡ 12 ÀÚ¸®¸¸ Ç¥½Ã = $Pi12"

Msg=`printf "%s %s \n" $Message1 $Message2`
echo $Msg; echo $Msg

# ÀÌ·¸°Ô Çϸé, 'sprintf' ÇÔ¼ö´Â Bash¿¡¼­ ·ÎµùÇÒ ¼ö ÀÖ´Â ¸ðµâ·Î
# Á¢±ÙÀÌ °¡´ÉÇØ ÁöÁö¸¸, À̽ļºÀÌ ÀÖ´Â ±¸ÇöÀº ¾Æ´Õ´Ï´Ù.

exit 0