{"provider_url":"https://hatena.blog","description":"\u30e9\u30f3\u30ad\u30f3\u30b0\u53c2\u52a0\u4e2dLinux\u30e9\u30f3\u30ad\u30f3\u30b0\u53c2\u52a0\u4e2d\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0bash\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u5c55\u958b\u3067\u3001\u5909\u6570\u304c\u672a\u5b9a\u7fa9\u306e\u3068\u304d\u306b\u30a8\u30e9\u30fc\u306b\u3067\u304d\u308b #!/bin/bash a=${1:?} echo \"a=$a\" $ ./test.sh ./test.sh: \u884c 3: 1: \u30d1\u30e9\u30e1\u30fc\u30bf\u304c null \u307e\u305f\u306f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u305b\u3093 $ ./test.sh unko a=unko","width":"100%","height":"190","url":"https://iww.hateblo.jp/entry/20251119/parameter","type":"rich","published":"2025-11-19 00:00:00","version":"1.0","title":"bash\u3067\u3001\u5f15\u6570\u304c\u7121\u3044\u3068\u304d\u306b\u30a8\u30e9\u30fc\u306b\u3059\u308b","provider_name":"Hatena Blog","categories":["Linux","bash"],"image_url":"https://cdn.user.blog.st-hatena.com/default_entry_og_image/42132/1685946694840016","author_url":"https://blog.hatena.ne.jp/iww/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fiww.hateblo.jp%2Fentry%2F20251119%2Fparameter\" title=\"bash\u3067\u3001\u5f15\u6570\u304c\u7121\u3044\u3068\u304d\u306b\u30a8\u30e9\u30fc\u306b\u3059\u308b - \u63ee\u767a\u6027\u306e\u30e1\u30e2\uff12\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"iww","blog_url":"https://iww.hateblo.jp/","blog_title":"\u63ee\u767a\u6027\u306e\u30e1\u30e2\uff12"}