UNIXç³»ã®OSã¯ãæ¨æºã§å«ã¾ããå¤æ§ãªãã¼ã«ã«ãã£ã¦å¼·åãªã³ãã³ãã©ã¤ã³ç°å¢ãå®ç¾ãã¦ãã¾ããä¾ãã° ããæååãå«ããã¡ã¤ã«ãããã®åºç¾ç®æã¨ã¨ãã«ãªã¹ãã¢ãããã ã¨ãã£ãã¿ã¹ã¯ãéæãããã¨ãã¯ã以ä¸ã®ããã«findã¨grepãä½µç¨ããã°åºæ¥ã¾ãã find DIR -name "FILE" -exec grep -IHn STRING {} \; ããããæ¯è¼çããçºçããã¿ã¹ã¯ã®å²ã«ã³ãã³ããè¤éãªã®ã§ãããman findãman grepããç¾½ç®ã«ãªãã¾ããããã§ãããç´æçã«ä½¿ããã³ãã³ããã·ã§ã«é¢æ°ã¨ãã¦æ¸ãã¦ã¿ã¾ããã function search() { dir=. file=* case $# in 0) echo usage: search STRING [DIR [FILE]] ;; 1) string=$1 ;; 2) string=$1 dir=$2 ;
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