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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
 <META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
 <TITLE>BASH Programming - Introduction HOW-TO: ¤½¤Î¾¤Î¥¹¥¯¥ê¥×¥È</TITLE>
 <LINK HREF="Bash-Prog-Intro-HOWTO-11.html" REL=next>
 <LINK HREF="Bash-Prog-Intro-HOWTO-9.html" REL=previous>
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</HEAD>
<BODY>
<A HREF="Bash-Prog-Intro-HOWTO-11.html">¼¡¤Î¥Ú¡¼¥¸</A>
<A HREF="Bash-Prog-Intro-HOWTO-9.html">Á°¤Î¥Ú¡¼¥¸</A>
<A HREF="Bash-Prog-Intro-HOWTO.html#toc10">Ìܼ¡¤Ø</A>
<HR>
<H2><A NAME="s10">10. ¤½¤Î¾¤Î¥¹¥¯¥ê¥×¥È</A>     </H2>

<H2><A NAME="ss10.1">10.1 read ¤ò»È¤Ã¤Æ¥æ¡¼¥¶¤ÎÆþÎϤòÆɤ߹þ¤à</A>
</H2>

<P>¥æ¡¼¥¶¤Ë²¿¤é¤«¤ÎÆþÎϤòÂ¥¤·¤¿¤¤¤È»×¤¦¾ì¹ç¤¬¤è¤¯¤¢¤ë¤â¤Î¤Ç¤¹¡£¤½¤ì¤ò¼Â¸½¤¹¤ëÊý
Ë¡¤Ï¤¤¤¯¤Ä¤«Â¸ºß¤·¤Þ¤¹¤¬¡¢°Ê²¼¤Ï¤½¤ì¤é¤Î¤¦¤Á¤Î¤Ò¤È¤Ä¤Ç¤¹¡£
<P>
<BLOCKQUOTE><CODE>
<PRE>
        #!/bin/bash
        echo Please, enter your name
        read NAME
        echo "Hi $NAME!"
        
</PRE>
</CODE></BLOCKQUOTE>
<P>
<P>¾åµ­¤ÎÊÑ·Á¤È¤·¤Æ¡¢<CODE>read</CODE> ¤ò»È¤Ã¤ÆÊ£¿ô¤ÎÃͤò¼õ¤±¼è¤ë¤³¤È¤â¤Ç¤­¤Þ¤¹¡£
¼¡¤ÎÎãÂê¤Ï¤½¤ì¤òÌÀ¤é¤«¤Ë¤¹¤ë¤â¤Î¤Ç¤¹¡£
<P>
<BLOCKQUOTE><CODE>
<PRE>
        #!/bin/bash
        echo Please, enter your firstname and lastname
        read FN LN 
        echo "Hi! $LN, $FN !"
        
</PRE>
</CODE></BLOCKQUOTE>
<P>
<P>    
<H2><A NAME="ss10.2">10.2 ¿ôÃͤÎɾ²Á</A>
</H2>

<P>¥³¥Þ¥ó¥É¥é¥¤¥ó(¤¢¤ë¤¤¤Ï¥·¥§¥ë)¤Ç¡¢¼¡¤Î¤è¤¦¤ËÂǤäƤߤƤ¯¤À¤µ¤¤¡£
<P>
<BLOCKQUOTE><CODE>
<PRE>
        $ echo 1 + 1
        
</PRE>
</CODE></BLOCKQUOTE>
<P><CODE>2</CODE> ¤¬½ÐÎϤµ¤ì¤ë¤È´üÂÔ¤·¤Æ¤¤¤¿¤Ê¤é¡¢¤¬¤Ã¤«¤ê¤·¤¿¤³¤È¤Ç¤·¤ç¤¦¡£
<CODE>bash</CODE> ¤Ë¿ôÃͤò·×»»¤µ¤»¤¿¤¤¤È¤­¤Ï¡¢¤É¤¦¤·¤¿¤é¤¤¤¤¤Î¤Ç¤·¤ç¤¦¡©
²ò·èºö¤Ï¼¡¤Î¤è¤¦¤Ë¤¹¤ë¤³¤È¤Ç¤¹¡£
<BLOCKQUOTE><CODE>
<PRE>
        $ echo $((1 + 1))
        
</PRE>
</CODE></BLOCKQUOTE>
<P>
<P>¾åµ­¤Ç¤Ï¡¢¤è¤ê¥í¥¸¥«¥ë¤Ê½ÐÎϤ¬¤Ê¤µ¤ì¤¿¤³¤È¤È»×¤¤¤Þ¤¹¡£¤³¤ì¤Ï¿ô¼°¤òɾ²Á¤·¤¿
¤È¤¤¤¦¤³¤È¤Ç¤¹¡£¤Þ¤¿¡¢¼¡¤Î¤è¤¦¤Êɽ¸½¤Ç¤âƱ¤¸¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£
<P>
<BLOCKQUOTE><CODE>
<PRE>
        $ echo $[ 1 + 1 ]
        
</PRE>
</CODE></BLOCKQUOTE>
<P>
<P>ʬ¿ô¤ä¤¢¤ë¤¤¤Ï¤â¤Ã¤ÈÊ£»¨¤Ê¿ô³ØŪ½èÍý¤¬É¬Íפˤʤ俾ì¹ç¡¢¤¢¤ë¤¤¤Ï¿ô¼°¤ÇÍ·¤Ó
¤¿¤¤¤È¤­¤Ê¤É¤Ï¡¢¿ô¼°É¾²Á¤Î¤¿¤á¤Î <CODE>bc</CODE> ¤È¤¤¤¦¥³¥Þ¥ó¥É¤¬»È¤¨¤Þ¤¹¡£
¥³¥Þ¥ó¥É¥×¥í¥ó¥×¥È¾å¤Ç "<CODE>echo $[3/4]</CODE>" ¤È¼Â¹Ô¤·¤Æ¤â¡¢<CODE>bash</CODE> ¤Ï
À°¿ô¤Ç¤·¤«Åú¤¨¤òÊÖ¤»¤Ê¤¤¤Î¤Ç¡¢·ë²Ì¤Ï <CODE>0</CODE> ¤È¤Ê¤ê¤Þ¤¹¡£
¤·¤«¤·¡¢"<CODE>echo 3/4 | bc -l</CODE>" ¤È¼Â¹Ô¤¹¤ì¤Ð¡¢<CODE>0.75</CODE> ¤È¤¤¤¦Àµ¤·¤¤Åú
¤¨¤¬Ê֤äƤ­¤Þ¤¹¡£
<P>
<P>
<P>
<A NAME="finding_bash"></A> <H2><A NAME="ss10.3">10.3 bash ¤òõ¤¹ </A>
</H2>

<P>Mike ¤«¤é¤Î¥á¥Ã¥»¡¼¥¸¤ò·ÇºÜ¤·¤Þ¤¹¡£(¼Õ¼­¤ò¸«¤Æ¤¯¤À¤µ¤¤) 
<P>
<P>¤¢¤Ê¤¿¤Ï¤¤¤Ä¤â <CODE>#!/bin/bash</CODE> ¤È¤¤¤¦¤Î¤ò»È¤Ã¤Æ¤¤¤Þ¤¹¤¬¡¢<CODE>bash</CODE> 
¤¬¤É¤³¤Ë¤¢¤ë¤Î¤«Ãµ¤¹ÊýË¡¤òÎ㼨¤·¤¿¤Û¤¦¤¬¤¤¤¤¤È»×¤¤¤Þ¤¹¡£"<CODE>bash</CODE> ¤ò¤½¤Î
¾ì½ê¤ËÃÖ¤¤¤Æ¤·¤Þ¤¨¤Ð¤¤¤¤¤Î¤Ç¤¹¤¬¡¢¤¹¤Ù¤Æ¤Î¥Þ¥·¥ó¤¬¤½¤ì¤ò¤·¤Æ¤¤¤ë¤ï¤±¤Ç¤Ï¤¢¤ê
¤Þ¤»¤ó¡£¥ë¡¼¥È¥Ç¥£¥ì¥¯¥È¥ê¤«¤é¡¢'<CODE>find ./ -name bash</CODE>' ¤ò¼Â¹Ô¤¹¤ì¤ÐÄÌ
¾ï¤Ïõ¤·½Ð¤»¤ë¤Ï¤º¤Ç¤¹¡£
<P>
<P>¥Á¥§¥Ã¥¯¤¹¤Ù¤­¤Ê¤Î¤Ï¡¢¼¡¤Î¤è¤¦¤Ê¾ì½ê¤Ç¤·¤ç¤¦¡£
<BLOCKQUOTE><CODE>
<PRE>
        ls -l /bin/bash
        ls -l /sbin/bash
        ls -l /usr/lodal/bin/bash
        ls -l /usr/bin/bash
        ls -l /usr/sbin/bash
        ls -l /usr/local/sbin/bash
        
</PRE>
</CODE></BLOCKQUOTE>
<P>(¤³¤ì°Ê³°¤Î¥Ç¥£¥ì¥¯¥È¥ê¤Ï¤¹¤°¤Ë»×¤¤É⤫¤Ó¤Þ¤»¤ó... ¥·¥¹¥Æ¥à¤¬°ã¤Ã¤Æ¤â¡¢
¤³¤ì¤Þ¤Ç¤Ï¤³¤ÎÃ椫¤é¸«¤Ä¤«¤ë¾ì¹ç¤¬¤Û¤È¤ó¤É¤Ç¤·¤¿¡£) 
¤½¤ì¤«¤é¡¢'<CODE>which bash</CODE>' ¤ò»È¤Ã¤Æ¤ß¤ë¤Î¤â¤¤¤¤¤È»×¤¤¤Þ¤¹¡£ 
<P>    
<H2><A NAME="ss10.4">10.4 ¥×¥í¥°¥é¥à¤ÎÌá¤êÃͤò³ÍÆÀ¤¹¤ëÊýË¡</A>
</H2>

<P><CODE>bash</CODE> ¤Ç¤Ï¡¢¥×¥í¥°¥é¥à¤ÎÌá¤êÃͤò <CODE>$?</CODE> ¤È¤¤¤¦Æüì¤ÊÊÑ¿ô¤ËÆþ¤ì¤Æ
¤ª¤¯¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£
°Ê²¼¤Ï¡¢¥×¥í¥°¥é¥à¤ÎÌá¤êÃͤò³ÍÆÀ¤¹¤ëÊýË¡¤ò½ñ¤¤¤¿¤â¤Î¤Ç¤¹¡£¤¿¤À¤·¡¢
<CODE>/dada</CODE> ¤È¤¤¤¦¥Ç¥£¥ì¥¯¥È¥ê¤Ï¼Âºß¤·¤Þ¤»¤ó¡£(¤³¤ì¤â Mike ¤«¤é¤ÎÄó°Æ¤ò
ºÜ¤»¤¿¤â¤Î¤Ç¤¹)
<P>
<BLOCKQUOTE><CODE>
<PRE>
        #!/bin/bash
        cd /dada &amp;> /dev/null
        echo rv: $?
        cd $(pwd) &amp;> /dev/null
        echo rv: $?
        
</PRE>
</CODE></BLOCKQUOTE>
<P>
<P>    
<H2><A NAME="ss10.5">10.5 ¥³¥Þ¥ó¥É½ÐÎϤò³ÍÆÀ¤¹¤ëÊýË¡ </A>
</H2>

<P>°Ê²¼¤Î´Êñ¤Ê¥¹¥¯¥ê¥×¥È¤Ï¡¢¤¹¤Ù¤Æ¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¾å¤òõ¤·¤ÆÁ´Éô¤Î¥Æ¡¼¥Ö¥ë¤ò
ɽ¼¨¤¹¤ë¤È¤¤¤¦¤â¤Î¤Ç¤¹( <CODE>MySQL</CODE> ¤¬¥¤¥ó¥¹¥È¡¼¥ë¤µ¤ì¤Æ¤¤¤ë¤³¤È¤¬Á°Äó¤Ç
¤¹)¡£
¤³¤ÎÃæ¤Î '<CODE>mysql</CODE>' ¤È¤¤¤¦¥³¥Þ¥ó¥ÉÉôʬ¤òÊѹ¹¤·¤Æ¡¢Í­¸ú¤Ê¥æ¡¼¥¶Ì¾¤È¥Ñ¥¹
¥ï¡¼¥É¤¬»È¤¨¤ë¤è¤¦¤Ë¤·¤Æ¤¯¤À¤µ¤¤¡£
<P>
<BLOCKQUOTE><CODE>
<PRE>
        #!/bin/bash
        DBS=`mysql -uroot  -e"show databases"`
        for b in $DBS ;
        do
                mysql -uroot -e"show tables from $b"
        done
        
</PRE>
</CODE></BLOCKQUOTE>
<P>
<P>
<H2><A NAME="ss10.6">10.6 Ê£¿ô¤Î¥½¡¼¥¹¥Õ¥¡¥¤¥ë</A>
</H2>

<P>¥³¥Þ¥ó¥É¥½¡¼¥¹¤È¤·¤ÆÊ£¿ô¤Î¥Õ¥¡¥¤¥ë¤ò»È¤¦¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£
<P>ºîÀ®Í½Äê( TO DO )
<P>
<P>
<P>
<HR>
<A HREF="Bash-Prog-Intro-HOWTO-11.html">¼¡¤Î¥Ú¡¼¥¸</A>
<A HREF="Bash-Prog-Intro-HOWTO-9.html">Á°¤Î¥Ú¡¼¥¸</A>
<A HREF="Bash-Prog-Intro-HOWTO.html#toc10">Ìܼ¡¤Ø</A>
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