Å×½ºÆ®¹®¿¡ À־Â, [[ ]] °¡ [ ] º¸´Ù´Â ´õ Àû´çÇÒ ¼öµµ ÀÖ½À´Ï´Ù. ºñ½ÁÇÏ°Ô, »ê¼ú ¿¬»ê¿¡ À־µ (( ))¸¦ ¾²´Â°ÍÀÌ ´õ ³ªÀ» ¼öµµ ÀÖ½À´Ï´Ù.
a=8 # ´ÙÀ½¿¡ ³ª¿À´Â ºñ±³ ¿¬»êÀº ¸ðµÎ ¶È°°½À´Ï´Ù. test "$a" -lt 16 && echo "yes, $a < 16" # "and list" /bin/test "$a" -lt 16 && echo "yes, $a < 16" [ "$a" -lt 16 ] && echo "yes, $a < 16" [[ $a -lt 16 ]] && echo "yes, $a < 16" # [[ ]] ¿Í (( )) ¾È¿¡ µé¾î ÀÖ´Â (( a < 16 )) && echo "yes, $a < 16" # º¯¼ö´Â Äõ¿ìÆ®ÇØ ÁÙ ÇÊ¿ä°¡ ¾ø½À´Ï´Ù. city="New York" # ¸¶Âù°¡Áö·Î, ´ÙÀ½¿¡ ³ª¿À´Â ºñ±³ ¿¬»êµµ ¸ðµÎ °°Àº °Ì´Ï´Ù. test "$city" \< Paris && echo "Paris°¡ $city º¸´Ù ´õ Ä¿¿ä." # ¾Æ½ºÅ° ¼ø¼¿¡¼ ´õ Ä¿¿ä. /bin/test "$city" \< Paris && echo "Paris°¡ $city º¸´Ù ´õ Ä¿¿ä." [ "$city" \< Paris ] && echo "Paris°¡ $city º¸´Ù ´õ Ä¿¿ä." [[ $city < Paris ]] && echo "Paris°¡ $city º¸´Ù ´õ Ä¿¿ä." # $city ¸¦ Äõ¿ìÆ® ¾È ÇØÁ൵ µË´Ï´Ù. # Thank you, S.C. |