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ShellScriptã«é–¢ã™ã‚‹DNPPã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (8)

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DNPP 2011/11/29
Linux

ShellScript
ãƒªãƒ³ã‚¯
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DNPP 2011/11/29
Linux

ShellScript
ãƒªãƒ³ã‚¯
UNIX & Linux ã‚³ãƒžãƒ³ãƒ‰ãƒ»ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆ ãƒªãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹
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DNPP 2011/11/29
Linux

ShellScript
ãƒªãƒ³ã‚¯
ã‚·ã‚°ãƒŠãƒ«ã¨ trap ã‚³ãƒžãƒ³ãƒ‰ | UNIX & Linux ã‚³ãƒžãƒ³ãƒ‰ãƒ»ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆ ãƒªãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹
ã‚·ã‚°ãƒŠãƒ«ã¨ trap ã‚³ãƒžãƒ³ãƒ‰ ã‚·ã‚°ãƒŠãƒ« ã‚·ã‚°ãƒŠãƒ«ã¨ã¯ï¼Ÿ ã‚·ã‚°ãƒŠãƒ«ã¨ã¯ã€å®Ÿè¡Œä¸ã®ãƒ—ãƒã‚»ã‚¹ã«å¯¾ã—ã¦ã€ã•ã¾ã–ã¾ãªã‚¤ãƒ™ãƒ³ãƒˆã‚’é€šçŸ¥ã™ã‚‹ãŸã‚ã«é€å‡ºã•ã‚Œã‚‹ã‚‚ã®ã§ã‚ã‚‹ã€‚ ã‚ˆãä½¿ç”¨ã•ã‚Œã‚‹ã€ãƒ—ãƒã‚»ã‚¹ã‚’çµ‚äº†ã™ã‚‹ãŸã‚ã®ã‚·ã‚°ãƒŠãƒ«ã§ã‚ã‚‹ SIGTERM ã‚„ SIGKILL ãªã©ã®ã»ã‹ã«ã‚‚ã€æ•°åç¨®é¡žã®ã‚·ã‚°ãƒŠãƒ«ãŒå˜åœ¨ã™ã‚‹ã€‚ ä½¿ç”¨å¯èƒ½ãªã‚·ã‚°ãƒŠãƒ«ã®ä¸€è¦§ã¯ã€ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã‹ã‚‰ kill -l ã‚’å®Ÿè¡Œã™ã‚‹ã“ã¨ã§å‚ç…§å¯èƒ½ã§ã‚ã‚‹ã€‚ $ kill -l 1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL 5) SIGTRAP 6) SIGABRT 7) SIGBUS 8) SIGFPE 9) SIGKILL 10) SIGUSR1 11) SIGSEGV 12) SIGUSR2 13) SIGPIPE 14) SIGALRM 15) SIGTERM 17) SIGCHLD 18) SIGCONT 19)
DNPP 2011/11/29
Linux

ShellScript

trap
ãƒªãƒ³ã‚¯
Linuxä¸Šã§ã‚·ã‚§ãƒ«ãŒå®Ÿè¡Œã•ã‚Œã‚‹ä»•çµ„ã¿ã‚’ï¼Œä½“ç³»çš„ã«ç†è§£ã—ã‚ˆã†ã€€ï¼ˆbash ä¸ç´šè€…ã¸ã®é“ï¼‰ - ä¸»ã«è¨€èªžã¨ã‚·ã‚¹ãƒ†ãƒ é–‹ç™ºã«é–¢ã—ã¦
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DNPP 2011/11/29
Linux

ShellScript
ãƒªãƒ³ã‚¯
Debianã§ã®èµ·å‹•å‡¦ç†(init)ã¨ãƒ©ãƒ³ãƒ¬ãƒ™ãƒ«(rc.d)ã®åˆ¶å¾¡
Debianã¯RedHatç³»Linuxã¨ã¯èµ·å‹•æ™‚ã®RunLevelã®æŒ¯ã‚Šæ–¹ãŒç•°ãªã‚Šã¾ã™ã€‚ ã“ã‚Œã¯ã€/etc/inittabã‚’è¦‹ã‚Œã°ä¸€ç›®çžç„¶ã§ã™ã€‚Debianã§ã¯ã€ã¾ãšã€/etc/rcS.då†…ã‚’å®Ÿè¡Œã—ã€ãã“ã‹ã‚‰æŒ‡å®šã•ã‚ŒãŸãƒ‡ãƒ•ã‚©ãƒ«ãƒˆãƒ©ãƒ³ãƒ¬ãƒ™ãƒ«ã®rc*.dã‚’å®Ÿè¡Œã—ã¾ã™ã€‚ ãªãŠã€RedHatç³»Linuxã§ã¯ã€ä»¥ä¸‹ã®ã‚ˆã†ãªRunLevelã®å‰²å½“ã‚’ã—ã¦ã‚ã‚Šã¾ã™ã€‚ init0 = åœæ¢ init1 = ã‚·ãƒ³ã‚°ãƒ«ãƒ¦ãƒ¼ã‚¶ãƒ¼ãƒ¢ãƒ¼ãƒ‰ init2 = NFSã‚’ä½¿ç”¨ã—ãªã„ãƒ†ã‚ã‚¹ãƒˆãƒã‚°ã‚¤ãƒ³ãƒ¢ãƒ¼ãƒ‰(ãƒžãƒ«ãƒãƒ¦ãƒ¼ã‚¶ãƒ¼ãƒ¢ãƒ¼ãƒ‰) init3 = ãƒ†ã‚ã‚¹ãƒˆãƒã‚°ã‚¤ãƒ³ãƒ¢ãƒ¼ãƒ‰(ãƒžãƒ«ãƒãƒ¦ãƒ¼ã‚¶ãƒ¼ãƒ¢ãƒ¼ãƒ‰) init4 = æœªä½¿ç”¨ init5 = GUIãƒã‚°ã‚¤ãƒ³ãƒ¢ãƒ¼ãƒ‰(ãƒžãƒ«ãƒãƒ¦ãƒ¼ã‚¶ãƒ¼ãƒ¢ãƒ¼ãƒ‰) init6 = å†èµ·å‹• Debianã§ã¯ã€ init0 = åœæ¢ init1 = ã‚·ãƒ³ã‚°ãƒ«ãƒ¦ãƒ¼ã‚¶ãƒ¼ãƒ¢ãƒ¼ãƒ‰ init2 = ãƒžãƒ«
DNPP 2011/11/29
update-rc.d

Linux

Daemon

ShellScript
ãƒªãƒ³ã‚¯
ãƒ•ãƒ«ãƒ‡ã‚¸ãƒƒãƒˆæœ‰é™ä¼šç¤¾ï½œã‚µãƒ¼ãƒé‹å–¶Tipsï½œã‚ˆãä½¿ã†Linuxã‚³ãƒžãƒ³ãƒ‰ï½œã‚µãƒ¼ãƒãƒ¼é‹å–¶ä¸Šå¿…è¦ãªã‚³ãƒžãƒ³ãƒ‰
update-rc.d - ã‚µãƒ¼ãƒãƒ¼é‹å–¶ä¸Šå¿…è¦ãªã‚³ãƒžãƒ³ãƒ‰ ãƒ©ãƒ³ãƒ¬ãƒ™ãƒ«ã«åˆã‚ã›ã¦è‡ªå‹•èµ·å‹•åŠã³åœæ¢ã•ã›ã‚‹è¨å®šã‚’è¡Œã† (squeezeä»¥é™ã®ä½¿ç”¨ã¯æŽ¨å¥¨ã•ã‚Œã¦ã„ãªã„ã€‚ï¼‰ã€€â†’ç¾åœ¨ã¯insservã‚³ãƒžãƒ³ãƒ‰ã‚’æŽ¨å¥¨ â– ã‚ˆãä½¿ã†å½¢ï¼ˆä¾‹ï¼‰ â€»apacheã‚’ãƒ©ãƒ³ãƒ¬ãƒ™ãƒ«ã«åˆã‚ã›ã¦è‡ªå‹•èµ·å‹•åŠã³åœæ¢ã•ã›ã‚‹è¨å®šã‚’è¡Œã†ã€‚ # update-rc.d apache defaults Adding system startup for /etc/init.d/apache ... /etc/rc0.d/K20apache -> ../init.d/apache /etc/rc1.d/K20apache -> ../init.d/apache /etc/rc6.d/K20apache -> ../init.d/apache /etc/rc2.d/S20apache -> ../init.d/apache /etc/rc3.d/
DNPP 2011/11/29
update-rc.d

Linux

Daemon

ShellScript
ãƒªãƒ³ã‚¯
init.d ã‚¹ã‚¯ãƒªãƒ—ãƒˆã‚’æ›¸ã“ã†
ç§ãŒ 1997 å¹´é ƒã« Slackware ã‹ã‚‰ Debian ã«ã‚„ã£ã¦æ¥ãŸã¨ãã€ æ‚©ã‚“ã ã“ã¨ã®ã²ã¨ã¤ãŒèµ·å‹•ã‚¹ã‚¯ãƒªãƒ—ãƒˆã§ã—ãŸã€‚ Slackware ã§ã¯ rc.local ã¨ã„ã†ãƒ•ã‚¡ã‚¤ãƒ«ã«èµ·å‹•ã‚³ãƒžãƒ³ãƒ‰åˆ—ã‚’ ã¹ãŸæ›¸ãã™ã‚Œã°ã‚ˆã‹ã£ãŸã®ã§ã™ãŒã€ Debian ã§ã¯ start, stop, restart ãªã©ã®å¼•ãæ•°ã‚’ã¨ã£ã¦ã€ ã²ã¨ã¤ã®ã‚¹ã‚¯ãƒªãƒ—ãƒˆã§èµ·å‹•ãƒ»åœæ¢ãƒ»è¨å®šå¤‰æ›´ãªã©ã‚’è¡Œã„ã¾ã™ã€‚ ã“ã®ãŸã‚èµ°ã£ã¦ã„ã‚‹ãƒ‡ãƒ¼ãƒ¢ãƒ³ãƒ—ãƒã‚»ã‚¹ã‚’æ•ã¾ãˆã‚‹ãŸã‚ã« start-stop-daemon ã¨ã„ã†ç‹¬è‡ªã‚³ãƒžãƒ³ãƒ‰ãŒå¤šç”¨ã•ã‚Œã‚‹ã“ã¨ã«ãªã‚Šã¾ã™ãŒã€ ã“ã‚Œã¯ä½¿ã„æ–¹ã«å¤šå°‘ã®ã‚³ãƒ„ãŒã‚ã‚Šã¾ã™ã€‚ ã“ã®æ–‡æ›¸ã§ã¯ã€ã“ã‚Œã¾ã§ã«è‡ªå‰ã®èµ·å‹•ã‚¹ã‚¯ãƒªãƒ—ãƒˆã‚’æ›¸ã„ãŸçµŒé¨“ã‹ã‚‰ã€ ãã®ã¸ã‚“ã®ãƒã‚¤ãƒ³ãƒˆã‚’ã„ãã¤ã‹æ›¸ã„ã¦ãŠã“ã†ã¨æ€ã„ã¾ã™ã€‚ ãŸã ã¾ã‚ã€ ã‚·ãƒ£ãƒƒãƒˆãƒ€ã‚¦ãƒ³ã«æ°—ã‚’ä½¿ã‚ãªãã¦ã„ã„ ã„ã–ã¨ãªã£ãŸã‚‰ã‚¹ãƒ¼ãƒ‘ãƒ¼ãƒ¦ãƒ¼ã‚¶æ¨©é™ã§ãƒ¢ã‚²ã‚Œã°ã„ã„ ã¨ã„ã†å ´åˆã‚‚çµæ§‹å¤šã„ã¨æ€ã†
DNPP 2011/11/29
start-stop-daemon

Linux

Daemon

ShellScript
ãƒªãƒ³ã‚¯
1