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shellã«é–¢ã™ã‚‹diary193ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (8)

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diary193 2017/06/13
linux

shell
ãƒªãƒ³ã‚¯
bashã§jqã‚’ä½¿ã£ã¦JSONã®é…åˆ—ã‚’ãƒ«ãƒ¼ãƒ—ã•ã›ã‚‹ - Qiita
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diary193 2015/08/28
å˜ç´”ã ã‘ã©ä»Šæ—¥çŸ¥ã£ã¦æ„Ÿå‹•ã—ãŸ

javascript

jq

shell
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ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆã®ä¸ã§1è¡Œãšã¤å¤‰æ•°ã‚’åˆ†å‰²ã™ã‚‹éš›ã«ã¯ã€cutã¨ã‹awkã¨ã‹ä½™è¨ˆãªãƒ—ãƒã‚»ã‚¹ã‚’èµ·å‹•ã›ãšsetã‚’ä½¿ã£ã¦åˆ†å‰²ã—ãŸæ–¹ãŒåŠ¹çŽ‡çš„ - åŒå…å·¥å ´æ—¥èªŒ
ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆã®ä¸ã§ã€ã‚¹ãƒšãƒ¼ã‚¹åŒºåˆ‡ã‚Šã‚‚ã—ãã¯ã‚¿ãƒ–åŒºåˆ‡ã‚Šã®ãƒ¬ã‚³ãƒ¼ãƒ‰ã‚’æ‰±ã†ã“ã¨ãŒã‚ˆãã‚ã‚‹ã¨æ€ã„ã¾ã™ã€‚ ãŸã¨ãˆã°ã€å‰å›žã®ã‚¨ãƒ³ãƒˆãƒªã€ŒAWS CLIã¨jqã‚’ä½¿ã£ã¦ã€AWSã®ELBãƒœãƒªãƒ¥ãƒ¼ãƒ ãŒã‚¢ã‚¿ãƒƒãƒã•ã‚Œã¦ã„ã‚‹EC2ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹åã‚’å‡ºåŠ›ã™ã‚‹ãƒ¯ãƒ³ãƒ©ã‚¤ãƒŠãƒ¼ã‚’æ›¸ã„ãŸ - åŒå…å·¥å ´æ—¥èªŒã€ã®ã‚¹ã‚¯ãƒªãƒ—ãƒˆã®å‡ºåŠ›ã¯ä»¥ä¸‹ã®ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ i-ec56a9f5 vol-07d00601 servername i-ec56a9f5 vol-8f550991 servername ã“ã®ã‚ˆã†ãªãƒ¬ã‚³ãƒ¼ãƒ‰ã®ç‰¹å®šã®åˆ—ã‚’å–ã‚Šå‡ºã—ã¦ã€å‡¦ç†ã™ã‚‹éš›ã«ã©ã†ã™ã‚‹ã®ãŒåŠ¹çŽ‡çš„ã‹ã€ã¨ã„ã†ã®ãŒã“ã®ã‚¨ãƒ³ãƒˆãƒªã®ãŠé¡Œã§ã™ã€‚ éžå¸¸ã«å¤ã„è©±é¡Œãªã®ã§ã€æ˜”ã‹ã‚‰ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆã‚’æ›¸ã„ã¦ã„ã‚‹äººã«ã¯è‡ªæ˜Žãªè©±ã§ã¯ã‚ã‚Šã¾ã™ãŒã€æœ€è¿‘ã€ã‚·ã‚§ãƒ«ã®æ¨™æº–æ©Ÿèƒ½ã®è©±ã‚’èžãæ©Ÿä¼šãŒãªãã€å¤±ã‚ã‚Œã¤ã¤ã‚ã‚‹æŠ€è¡“ã«ãªã£ã¦ãã¦ã„ã‚‹æ°—ãŒã—ã¦ã„ã‚‹ã®ã§ã€æ”¹ã‚ã¦ç¢ºèªã¨ã„ã†ã“ã¨ã§ã€‚ ä¾‹ã¨ã—ã¦æŒ™ã’ãŸãƒ¬ã‚³ãƒ¼ãƒ‰ã‹ã‚‰
diary193 2015/01/26
linux

shell
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ä½¿ã„ã‚„ã™ã„ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆã‚’æ›¸ã
ã§ãã‚Œã°ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆãªã‚“ã¦æ›¸ããŸããªã„ã‚“ã ã‘ã©ï¼Œã¾ã ã¾ã æ›¸ãæ©Ÿä¼šã¯å¤šã„ï¼Žã‚·ã‚§ãƒ«èŠ¸ã‚„ãƒ¯ãƒ³ãƒ©ã‚¤ãƒŠãƒ¼ã®ã‚ˆã†ãªå‡ã£ãŸã“ã¨ã§ã¯ãªãï¼Œä»–ã®ã²ã¨ãŒä½¿ã„ã‚„ã™ã„ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆã‚’æ›¸ããŸã‚ã«è‡ªåˆ†ãŒå®Ÿè·µã—ã¦ã„ã‚‹ã“ã¨ã‚’ã¾ã¨ã‚ã¦ãŠãï¼Ž ãƒ˜ãƒ«ãƒ—ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ æ›¸ã„ã¦ã‚‹ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆãŒä½¿ã„æ¨ã¦ã§ã¯ãªãä½•åº¦ã‚‚ä½¿ã†ã‚‚ã®ã§ã‚ã‚‹å ´åˆã¯ï¼Œæœ¬ä½“ã‚’æ›¸ãå§‹ã‚ã‚‹å‰ã«ï¼Œãã®ã‚¹ã‚¯ãƒªãƒ—ãƒˆã®ä½¿ã„æ–¹ã‚’è¡¨ç¤ºã™ã‚‹usageé–¢æ•°ã‚’æ›¸ã„ã¦ã—ã¾ã†ï¼Ž ã“ã‚Œã‚’æ›¸ã„ã¦ãŠãã¨ï¼Œå¾Œã€…ãƒãƒ¼ãƒ ã¸å…±æœ‰ãŒã—ã‚„ã™ããªã‚‹ï¼Žã¨ã‚Šã‚ãˆãšusageè¦‹ã¦ãã ã•ã„ã¨è¨€ãˆã‚‹ï¼Žã¾ãŸï¼Œã‚ã‚‰ã‹ã˜ã‚æ›¸ãã“ã¨ã§ï¼Œå˜ãªã‚‹ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆã§ã‚ã£ã¦ã‚‚è‡ªåˆ†ã®ä¸ã§å‹•ä½œã‚’æ•´ç†ã—ã¦ã‹ã‚‰æ›¸ãå§‹ã‚ã‚‹ã“ã¨ãŒã§ãã‚‹ï¼Žé–¢æ•°ã¨ã—ã¦æ›¸ãã®ã¯ï¼Œusageã‚’è¡¨ç¤ºã—ã¦ã‚ã’ã‚‹ã¨ã‚ˆã„å ´é¢ãŒã„ãã¤ã‹ã‚ã‚Šï¼Œä½¿ã„å›žã™ã“ã¨ãŒã§ãã‚‹ãŸã‚ï¼Ž ä»¥ä¸‹ã®ã‚ˆã†ã«æ›¸ãï¼Ž function usage { cat <<EOF $(basename ${0})
diary193 2014/05/22
shell

programming
ãƒªãƒ³ã‚¯
UNIX FAQ LIST #3.8
Subject: Why doesn't redirecting a loop work as intended? (Bourne shell) Date: Thu Mar 18 17:16:55 EST 1993 3.8) ãªãœãƒ«ãƒ¼ãƒ—ã®å‡ºåŠ›ã‚’ãƒªãƒ€ã‚¤ãƒ¬ã‚¯ãƒˆã—ã¦ã‚‚æ€ã„ã©ã†ã‚Šå‹•ã‹ãªã„ã®ã‹ (B-shell)ã€‚ æ¬¡ã®ã‚ˆã†ãªä¾‹ã§è€ƒãˆã¦ã¿ã¾ã™ã€‚ foo=bar while read line do # do something with $line foo=bl etch done < /etc/passwd echo "foo is now: $foo" å¤šãã® Bourne ã‚·ã‚§ãƒ«ã®å®Ÿè£…ã§ã¯ã€``foo=bl etch'' ã¨ã—ãŸã®ã« ``foo is now: bar'' ã¨å‡ºåŠ›ã•ã‚Œã¦ã—ã¾ã„ã¾ã™ã€‚ãªãœã§ã—ã‚‡ã†ã€‚ã“ã‚Œã¯ä»¥ä¸‹ã® ã‚ˆã†ãªã€ã‚ã¾ã‚Šæ–‡æ›¸åŒ–ã•ã‚Œã¦ã„ã¾ã›ã‚“ãŒã€æ´ä»£ã®Bourneã‚·ã‚§ãƒ«ã®ä»•æ§˜ã®ã›ã„
diary193 2012/12/01
ã„ã¤ã‚‚å¿˜ã‚Œã¦ã—ã¾ã†ã®ã§ã€Œãªãœãƒ«ãƒ¼ãƒ—ã®å‡ºåŠ›ã‚’ãƒªãƒ€ã‚¤ãƒ¬ã‚¯ãƒˆã—ã¦ã‚‚æ€ã„ã©ã†ã‚Šå‹•ã‹ãªã„ã®ã‹ã€

shell
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Writing Robust Bash Shell Scripts - David Pashley.com
Many people hack together shell scripts quickly to do simple tasks, but these soon take on a life of their own. Unfortunately shell scripts are full of subtle effects which result in scripts failing in unusual ways. Itâ€™s possible to write scripts which minimise these probl ems. In this article, I explain several techniques for writing robust bash scripts. How often have you written a script that br
diary193 2012/02/29
set -o ã‚„ find -print0 ãªã© bash ã‚„ linux é™å®šã®è©±é¡Œã‚‚ã‚ã‚‹ã‘ã© critical-section ã®ã‚³ãƒ¼ãƒ‰ã¯å‚è€ƒã«ãªã‚‹ã€‚ãã¡ã‚“ã¨trapæ›¸ã„ã¦ãŠã‘ã°å®‰å¿ƒã—ã¦killã§ãã‚‹ã®ã§ç²¾ç¥žçš„ã«ã‚‚ã‚ˆã‚ã—ã„

shell
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UNIX & Linux ã‚³ãƒžãƒ³ãƒ‰ãƒ»ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆ ãƒªãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹
ã‚µãƒ¼ãƒ“ã‚¹çµ‚äº†ã®ãŠçŸ¥ã‚‰ã› ã„ã¤ã‚‚Yahoo! JAPANã®ã‚µãƒ¼ãƒ“ã‚¹ã‚’ã”åˆ©ç”¨ã„ãŸã ãèª ã«ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã™ã€‚ ãŠå®¢æ§˜ãŒã‚¢ã‚¯ã‚»ã‚¹ã•ã‚ŒãŸã‚µãƒ¼ãƒ“ã‚¹ã¯æœ¬æ—¥ã¾ã§ã«ã‚µãƒ¼ãƒ“ã‚¹ã‚’çµ‚äº†ã„ãŸã—ã¾ã—ãŸã€‚ ä»Šå¾Œã¨ã‚‚Yahoo! JAPANã®ã‚µãƒ¼ãƒ“ã‚¹ã‚’ã”æ„›é¡§ãã ã•ã„ã¾ã™ã‚ˆã†ã€ã‚ˆã‚ã—ããŠé¡˜ã„ã„ãŸã—ã¾ã™ã€‚
diary193 2010/07/28
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unix

shell

reference
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ã‚·ã‚§ãƒ«ã‚¹ã‚¯ãƒªãƒ—ãƒˆã®åŸºæœ¬ãƒ†ã‚¯ãƒ‹ãƒƒã‚¯ã‚’ç›—ã‚ï¼ï¼šCodeZine
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diary193 2006/05/24
shell
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