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2.11 ¥ª¥Ú¥ì¡¼¥¿¤Î¼ç¤Ê¤â¤Î¤òÁȤ߹ç¤ï¤»¤ë

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( expr )

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! expr
-not expr

expr¤¬µ¶¤Î¾ì¹ç¤Ï¿¿¤Ç¤¹¡¥

expr1 expr2
expr1 -a expr2
expr1 -and expr2

And(ÏÀÍýÀÑ)¤Ç¤¹¡¥expr1¤¬µ¶¤Î¾ì¹ç¡¤expr2¤Ïɾ²Á¤µ¤ì¤Þ¤»¤ó¡¥

expr1 -o expr2
expr1 -or expr2

Or(ÏÀÍýÏÂ)¤Ç¤¹¡¥expr1¤¬¿¿¤Î¾ì¹ç¡¤expr2¤Ïɾ²Á¤µ¤ì¤Þ¤»¤ó¡¥

expr1 , expr2

¥ê¥¹¥È¤Ç¤¹¡¥expr1¤Èexpr2¤Ï¡¤¾ï¤Ëɾ²Á¤µ¤ì¤Þ¤¹¡¥expr2¤¬ ¿¿¤Î¾ì¹ç¤Ï¿¿¤Ç¤¹¡¥expr1¤ÎÃͤÏÊü´þ¤µ¤ì¤Þ¤¹¡¥¤³¤Î¥ª¥Ú¥ì¡¼¥¿¤Ç¡¤°ì²ó ¤Î½èÍý¤Ç¡¤Â¾¤Î½èÍý¤¬À®¸ù¤·¤¿¤«¤É¤¦¤«¤Ë°Í¸¤»¤º¡¤Ê£¿ô¤ÎÆÈΩ¤·¤¿½èÍý¤ò¹Ô ¤Ê¤¦¤³¤È¤¬¤Ç¤­¤Þ¤¹¡¥Æó¤Ä¤Î½èÍýexpr1¤Èexpr2¤Ï¡¤¾ï¤Ë´°Á´¤ËÆÈ Ω¤È¤¤¤¦¤ï¤±¤Ç¤Ï¤Ê¤¯¡¤¤½¤ì¤Ïexpr1¤Ë¥Õ¥¡¥¤¥ë¤òÊÔ½¤¤·¤¿¤êºï½ü¤·¤¿¤ê ¤¹¤ëÉûºîÍѤ¬¤¢¤ë²ÄǽÀ­¤¬¤¢¤ê¡¤¤Þ¤¿¡¤expr2¤Ë±Æ¶Á¤¹¤ë‘-prune’ ¤ò»ÈÍѤ·¤Æ¤¤¤ë²ÄǽÀ­¤â¤¢¤ë¤¿¤á¤Ç¤¹¡¥

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Test: -true

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Test: -false

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