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5.1 ¥¿¥¤¥à¥¹¥¿¥ó¥×¤ÎÍøÍÑ

¥¿¥¤¥à¥¹¥¿¥ó¥×¤ÎÍøÍѤÏñ½ã¤Ç¤¹¡¥ÊÔ½¸Æü»þ¤òÊݤĤ¿¤á¡¤¥À¥¦¥ó¥í¡¼¥É¤·¤¿¤¤ ¥Õ¥¡¥¤¥ë¤ËÂФ·°Ê²¼¤Î¤è¤¦¤Ë¤·¤Þ¤¹¡¥

wget -S http://www.gnu.ai.mit.edu/

ñ½ã¤Ëls -l¤¹¤ë¤È¡¤¥í¡¼¥«¥ë¥Õ¥¡¥¤¥ë¤Î¥¿¥¤¥à¥¹¥¿¥ó¥×¤¬¡¤¥µ¡¼¥Ð¤« ¤éÊÖ¤µ¤ì¤ë¤è¤¦¤ÊLast-Modified¤Î¥¹¥Æ¡¼¥¿¥¹¤ÈƱ¤¸¤Ë¤Ê¤ê¤Þ¤¹¡¥¥¿¥¤ ¥à¥¹¥¿¥ó¥×¾ðÊó¤Ï¡¤¸«¤ÆÊ¬¤«¤ë¤è¤¦¤Ë¡¤¤¿¤È¤¨‘-N’¤¬¤Ê¤¤¾ì¹ç¤Ç¤â(¾¯¤¯ ¤È¤âHTTP¤ËÂФ·)¥í¡¼¥«¥ë¤Ë°Ý»ý¤µ¤ì¤Þ¤¹¡¥

¿ôÆü¸å¡¤Wget¤Ë¥ê¥â¡¼¥È¥Õ¥¡¥¤¥ë¤¬ÊѲ½¤·¤¿¤«¤É¤¦¤«Ä´ºº¤µ¤»¡¤ÊѲ½¤·¤¿¾ì¹ç ¥À¥¦¥ó¥í¡¼¥É¤·¤¿¤¤¾ì¹ç¤â¤¢¤ê¤Þ¤¹¡¥

wget -N http://www.gnu.ai.mit.edu/

Wget¤Ï¥µ¡¼¥Ð¤ËºÇ¸å¤ËÊÔ½¸¤·¤¿ÆüÉÕ¤ò¿Ò¤Í¤Þ¤¹¡¥¥í¡¼¥«¥ë¥Õ¥¡¥¤¥ë¤¬¥µ¡¼¥Ð¤È Ʊ¤¸¥¿¥¤¥à¥¹¥¿¥ó¥×¡¤¤Þ¤¿¤Ï¤è¤ê¿·¤·¤¤¾ì¹ç¡¤¥ê¥â¡¼¥È¥Õ¥¡¥¤¥ë¤ÏºÆ¼èÆÀ¤µ¤ì ¤Þ¤»¤ó¡¥¤·¤«¤·¡¤¥ê¥â¡¼¥È¥Õ¥¡¥¤¥ë¤¬¤è¤êºÇ¿·¤Î¾ì¹ç¡¤Wget¤Ï¼èÆÀ½èÍý¤ò¹Ô¤¤ ¤Þ¤¹¡¥

FTP¤Ç¤âƱ¤¸¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹¡¥Î㤨¤Ð°Ê²¼¤Î¤è¤¦¤Ë¤·¤Þ¤¹¡¥

wget "ftp://ftp.ifi.uio.no/pub/emacs/gnus/*"

(URL¤Î¼þ¤ê¤Î°úÍÑÉä¤Ç¡¤¥·¥§¥ë¤¬‘*’¤òŸ³«¤¹¤ë¤³¤È¤ò˸¤²¤Þ¤¹¡¥)

¥À¥¦¥ó¥í¡¼¥É¸å¤Ë¥í¡¼¥«¥ë¥Ç¥£¥ì¥¯¥È¥ê¤ò¥ê¥¹¥Èɽ¼¨¤¹¤ë¤È¡¤¥ê¥â¡¼¥È¥µ¡¼¥Ð ¤Î¤â¤Î¤È°ìÃפ¹¤ë¥¿¥¤¥à¥¹¥¿¥ó¥×¤òɽ¼¨¤·¤Þ¤¹¡¥‘-N’¤Ç¥³¥Þ¥ó¥É¤òºÆÈ¯¹Ô ¤¹¤ë¤³¤È¤Ç¡¤Wget¤Ï¡¤Á°²ó¥À¥¦¥ó¥í¡¼¥É¤·¤Æ¤«¤éÊÔ½¸¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¤Î ¤ßºÆ¤Ó²ó¼ý¤·¤Þ¤¹¡¥

Ëè½µ¡¤GNU¥¢¡¼¥«¥¤¥Ö¤ò¥ß¥é¡¼¤·¤¿¤¤¾ì¹ç¡¤Ëè½µ°Ê²¼¤Î¥³¥Þ¥ó¥É¤òÆþÎϤ¹¤ë¤Ç¤·¤ç ¤¦¡¥

wget --timestamping -r ftp://ftp.gnu.org/pub/gnu/

¥¿¥¤¥à¥¹¥¿¥ó¥×¤Ï¡¤¥µ¡¼¥Ð¤¬¥¿¥¤¥à¥¹¥¿¥ó¥×¤òÍ¿¤¨¤ë¥Õ¥¡¥¤¥ë¤ËÂФ·¤Æ¤Î¤ßư ºî¤·¤Þ¤¹¡¥HTTP¤ËÂФ·¤Æ¤Ï¡¤¤³¤ì¤ÏLast-Modified¥Ø¥Ã¥À¤Ë°Í¸¤· ¤Þ¤¹¡¥FTP¤ËÂФ·¤Æ¤Ï¡¤¤³¤ì¤ÏWget¤¬¥Ñ¡¼¥¹²Äǽ¤Ê½ñ¼°¤Î¡¤ÆüÉÕ¤òÍѤ¤¤¿ ¥Ç¥£¥ì¥¯¥È¥ê¥ê¥¹¥È¤ÇÆÀ¤é¤ì¤ë¤â¤Î¤Ë°Í¸¤·¤Þ¤¹(see FTP Time-Stamping Internals).