Bashã§stdout/stderr/exit codeã‚’ã‚ャプãƒãƒ£ - FolioscopeShell Script Advent Calendar 2015 7日目ã®è¨˜äº‹ã§ã™ã€‚ Bashã®ã¡ã‚‡ã£ã¨ã—ãŸTipsã§ã™ã€‚ Bashã«é™ã‚‰ãªã„ã‹ã‚‚知れã¾ã›ã‚“ãŒã€æ¤œè¨¼ç’°å¢ƒãŒBashã—ã‹ã‚ã‚Šã¾ã›ã‚“ã§ã—ãŸã€‚ å•é¡Œ Bash㧠$(command) ã¨æ›¸ãã¨ã€commandãŒã‚µãƒ–シェルã§å®Ÿè¡Œã•ã‚Œã€ stdout（標準出力）を変数ã«æ ¼ç´ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ï¼Ž hoge_value=$(echo 'hoge') # hoge_value => "hoge" ãŸã ã—stderr（標準エラー出力）ã¯ã‚ャプãƒãƒ£ã§ãã¾ã›ã‚“。 ã„ã¾ã€stdoutã¨stderrã¸å‡ºåŠ›ã—ã€100ã‚’è¿”ã™é–¢æ•°ãŒã‚ã‚‹ã¨ã—ã¾ã™ã€‚ out_err_and_exit() { echo "This is stdout" echo "This \\is \"tricky 'stdout" echo "This is stderr" >&2 ech
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