{"id":9400,"date":"2014-05-27T13:53:58","date_gmt":"2014-05-27T13:53:58","guid":{"rendered":"https:\/\/www.techopedia.com\/definition\/lions-book\/"},"modified":"2014-05-27T13:53:58","modified_gmt":"2014-05-27T13:53:58","slug":"lions-book","status":"publish","type":"definition","link":"https:\/\/www.techopedia.com\/definition\/20420\/lions-book","title":{"rendered":"Lions Book"},"content":{"rendered":"<h2><span id=\"what_does_lions_book_mean\">What Does Lions Book Mean?<\/span><\/h2>\n<p>The Lions book is a tech slang term for the volume &quot;Source Code and Commentary on UNIX Level 6&quot; written by John Lions in 1976. During the late 1970s, this volume was an exclusive type of reference for analysis of UNIX.<\/p>\n<h2><span id=\"techopedia_explains_lions_book\">Techopedia Explains Lions Book<\/span><\/h2>\n<p> As UNIX has developed over several decades, many students have researched the design of this kernel-based operating system that delves into key ideas about computing, including the use of program threads and interactivity between programs. UNIX is a high-level technology that is mainly the province of knowledgeable developers or engineers, and not generally used by end-user consumers. \n<\/p>\n<p>From the time that UNIX was developed by AT&amp;T Bell Labs, the &quot;Lions book&quot; was the sole resource for some of the code and functionality documentation around UNIX. That means it was extensively studied by those trying to learn this operating system and its use. Since then, the book has been reprinted as a guide to UNIX source code.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does Lions Book Mean? The Lions book is a tech slang term for the volume &quot;Source Code and Commentary on UNIX Level 6&quot; written by John Lions in 1976. During the late 1970s, this volume was an exclusive type of reference for analysis of UNIX. Techopedia Explains Lions Book As UNIX has developed over [&hellip;]<\/p>\n","protected":false},"author":7813,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_lmt_disableupdate":"","_lmt_disable":"","om_disable_all_campaigns":false,"footnotes":""},"definitioncat":[230],"class_list":["post-9400","definition","type-definition","status-publish","format-standard","hentry","definitioncat-privacy-and-compliance"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.2 (Yoast SEO v24.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is the Lions Book? - Definition from Techopedia<\/title>\n<meta name=\"description\" content=\"This definition explains the meaning of Lions Book and why it matters.\" \/>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lions Book\" \/>\n<meta property=\"og:description\" content=\"This definition explains the meaning of Lions Book and why it matters.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.techopedia.com\/definition\/20420\/lions-book\" \/>\n<meta property=\"og:site_name\" content=\"Techopedia\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/techopedia\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@techopedia\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/20420\/lions-book#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/20420\/lions-book\"},\"author\":{\"name\":\"Margaret Rouse\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5\"},\"headline\":\"Lions Book\",\"datePublished\":\"2014-05-27T13:53:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/20420\/lions-book\"},\"wordCount\":172,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.techopedia.com\/#organization\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.techopedia.com\/definition\/20420\/lions-book#respond\"]}],\"articleSection\":\"\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/20420\/lions-book\",\"url\":\"https:\/\/www.techopedia.com\/definition\/20420\/lions-book\",\"name\":\"What is the Lions Book? 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