Previous: Command Files, Up: Sequences   [Contents][Index]


15.4 À©¸æ¤µ¤ì¤¿½ÐÎϤòÆÀ¤ë¤¿¤á¤Î¥³¥Þ¥ó¥É

¥³¥Þ¥ó¥É¡¦¥Õ¥¡¥¤¥ë¤ä¥æ¡¼¥¶ÄêµÁ¥³¥Þ¥ó¥É¤Î¼Â¹ÔÃæ¤Ë¤Ï¡¢ Ä̾ï¤ÎGDB¤Î½ÐÎϤÏÍ޻ߤµ¤ì¤Þ¤¹¡£ Í£°ì½ÐÎϤµ¤ì¤ë¤Î¤Ï¡¢ ÄêµÁÆâ¤Î¥³¥Þ¥ó¥É¤¬ÌÀ¼¨Åª¤Ëɽ¼¨¤¹¤ë¥á¥Ã¥»¡¼¥¸¤À¤±¤Ç¤¹¡£ ¤³¤³¤Ç¤Ï¡¢ ¥æ¡¼¥¶¤¬´õ˾¤¹¤ë¤È¤ª¤ê¤Î½ÐÎϤòÀ¸À®¤¹¤ë¤Î¤ËÌò¤ËΩ¤Ä¡¢ 3¤Ä¤Î¥³¥Þ¥ó¥É¤Ë¤Ä¤¤¤ÆÀâÌÀ¤·¤Þ¤¹¡£

echo text

text¤òɽ¼¨¤·¤Þ¤¹¡£ Ä̾ï¤Ïɽ¼¨¤µ¤ì¤Ê¤¤Ê¸»ú¤â¡¢ C¤Î¥¨¥¹¥±¡¼¥×¡¦¥·¡¼¥±¥ó¥¹¤ò»È¤¦¤³¤È¤Çtext¤ÎÃæ¤Ë´Þ¤á¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£ Î㤨¤Ð¡¢ ²þ¹Ô¥³¡¼¥É¤òɽ¼¨¤¹¤ë¤Ë¤Ï‘\n’¤ò»È¤¤¤Þ¤¹¡£ ÌÀ¼¨Åª¤Ë»ØÄꤷ¤Ê¤¤¸Â¤ê¡¢ ²þ¹Ô¥³¡¼¥É¤Ïɽ¼¨¤µ¤ì¤Þ¤»¤ó¡£ ɸ½àŪ¤ÊC¤Î¥¨¥¹¥±¡¼¥×¡¦¥·¡¼¥±¥ó¥¹¤Ë²Ã¤¨¤Æ¡¢ ¥Ð¥Ã¥¯¥¹¥é¥Ã¥·¥å¤Î¸å¤í¤Ë¶õÇò¤òÃÖ¤¯¤³¤È¤Ç¡¢ ¶õÇò¤¬É½¤ï¤µ¤ì¤Þ¤¹¡£ ¤³¤ì¤Ï¡¢ ÀèÆ¬¤äËöÈø¤Ë¶õÇò¤Î¤¢¤ëʸ»úÎó¤òɽ¼¨¤¹¤ë¤Î¤ËÊØÍø¤Ç¤¹¡£ ¤È¤¤¤¦¤Î¤Ï¡¢ ¤³¤¦¤·¤Ê¤¤¤È¡¢ °ú¿ô¤ÎÀèÆ¬¤äËöÈø¤Î¶õÇò¤Ïºï½ü¤µ¤ì¤ë¤«¤é¤Ç¤¹¡£ ‘ and foo = ’¤òɽ¼¨¤¹¤ë¤Ë¤Ï¡¢ ‘echo \ and foo = \ ’¤ò¼Â¹Ô¤·¤Æ¤¯¤À¤µ¤¤¡£

C¤ÈƱÍÍ¡¢ text¤ÎËöÈø¤Ë¥Ð¥Ã¥¯¥¹¥é¥Ã¥·¥å¤òÃÖ¤¯¤³¤È¤Ç¡¢ ¥³¥Þ¥ó¥É¤ò¼¡¤Î¹Ô°Ê¹ß¤Ë·Ñ³¤¹¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£ Î㤨¤Ð¡¢

echo This is some text\n\
which is continued\n\
onto several lines.\n

¤Ï

echo This is some text\n
echo which is continued\n
echo onto several lines.\n

¤ÈƱ¤¸½ÐÎϤò¤â¤¿¤é¤·¤Þ¤¹¡£

output expression

expression¤ÎÃͤòɽ¼¨¤·¡¢ ¤½¤ì°Ê³°¤Ë¤Ï²¿¤âɽ¼¨¤·¤Þ¤»¤ó¡£ ²þ¹Ô¥³¡¼¥É¤â¡¢ ‘$nn = ’¤âɽ¼¨¤µ¤ì¤Þ¤»¤ó¡£ expression¤ÎÃͤÏÃÍ¥Ò¥¹¥È¥ê¤Ë¤ÏÆþ¤ê¤Þ¤»¤ó¡£ ¼°¤Î¾ÜºÙ¤Ë¤Ä¤¤¤Æ¤Ï¡¢ See Expressions¡£

output/fmt expression

expression¤ÎÃͤò¡¢ fmt¤Ç»ØÄꤵ¤ì¤ë¥Õ¥©¡¼¥Þ¥Ã¥È¤Çɽ¼¨¤·¤Þ¤¹¡£ print¥³¥Þ¥ó¥É¤ÈƱ¤¸¥Õ¥©¡¼¥Þ¥Ã¥È¤ò»ØÄꤹ¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£ ¾ÜºÙ¤Ë¤Ä¤¤¤Æ¤Ï¡¢ See Output formats¡£

printf string, expressions

string¤Ç»ØÄꤵ¤ì¤¿Ê¸»úÎó¤Ë¤·¤¿¤¬¤Ã¤Æexpressions¤ÎÃͤòɽ¼¨¤·¤Þ¤¹¡£ Ê£¿ô¤Îexpressions¤Ï¥«¥ó¥Þ¤Ç¶èÀÚ¤é¤ì¡¢ ¿ôÃͤ«¥Ý¥¤¥ó¥¿¤Î¤¤¤º¤ì¤«¤ò»ØÄê¤Ç¤­¤Þ¤¹¡£ ¤³¤ì¤é¤ÎÃͤϡ¢ ¥æ¡¼¥¶¡¦¥×¥í¥°¥é¥à¤«¤éC¤Î¥µ¥Ö¥ë¡¼¥Á¥ó

printf (string, expressions…);

¤ò¼Â¹Ô¤·¤¿¾ì¹ç¤ÈƱÍͤˡ¢ string¤Î»ØÄê¤Ë¤·¤¿¤¬¤Ã¤ÆÉ½¼¨¤µ¤ì¤Þ¤¹¡£

Î㤨¤Ð¡¢ ¼¡¤Î¤è¤¦¤Ë¤·¤Æ2¤Ä¤ÎÃͤò16¿Ê¿ô¤Çɽ¼¨¤¹¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£

printf "foo, bar-foo = 0x%x, 0x%x\n", foo, bar-foo

¥Õ¥©¡¼¥Þ¥Ã¥È¤ò»ØÄꤹ¤ëʸ»úÎó¤ÎÃæ¤Ç»È¤¨¤ë¥Ð¥Ã¥¯¥¹¥é¥Ã¥·¥å¡¦¥¨¥¹¥±¡¼¥×¡¦¥·¡¼¥±¥ó¥¹¤Ï¡¢ ¥Ð¥Ã¥¯¥¹¥é¥Ã¥·¥å¤È¤½¤ì¤Ë³¤¯Ã±°ìʸ»ú¤«¤é¹½À®¤µ¤ì¤ë´Êñ¤Ê¤â¤Î¤À¤±¤Ç¤¹¡£