{"id":29680,"date":"2023-01-10T01:51:16","date_gmt":"2023-01-09T20:21:16","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-awk-printf-with-variable\/"},"modified":"2023-01-10T01:51:16","modified_gmt":"2023-01-09T20:21:16","slug":"solved-awk-printf-with-variable","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-awk-printf-with-variable\/","title":{"rendered":"[Solved] awk printf with variable"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-17647769\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"17647769\" data-parentid=\"17647622\" data-score=\"3\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>Note that <code>foo=4\/3<\/code> sets <code>foo<\/code> to the string <code>4\/3<\/code>.  When that is printed via <code>%f<\/code>, &#8216;4\/3&#8217; is treated as <code>4<\/code>; when that is printed with <code>%s<\/code>, it is printed as <code>4\/3<\/code>.  If you want to evaluate the expression, you need it evaluated inside the script.<\/p>\n<p>For example:<\/p>\n<pre><code>awk 'END {printf \"%f\\n\", foonum\/fooden }' foonum=4 fooden=3 \/dev\/null\n<\/code><\/pre>\n<p>Note that <code>bash<\/code> does not do floating point arithmetic.  Thus this produces 1 as the output:<\/p>\n<pre><code>awk 'END {printf \"%s\\n\", foo }' foo=$((4\/3)) \/dev\/null\n<\/code><\/pre>\n<p>Maybe you want to use <code>bc<\/code>:<\/p>\n<pre><code>$ bc -l &lt;&lt;&lt; \"4\/3\"\n1.33333333333333333333\n$\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">0<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved awk printf with variable <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] Note that foo=4\/3 sets foo to the string 4\/3. When that is printed via %f, &#8216;4\/3&#8217; is treated as 4; when that is printed with %s, it is printed as 4\/3. If you want to evaluate the expression, you need it evaluated inside the script. For example: awk &#8216;END {printf &#8220;%f\\n&#8221;, foonum\/fooden }&#8217; foonum=4 &#8230; <a title=\"[Solved] awk printf with variable\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-awk-printf-with-variable\/\" aria-label=\"More on [Solved] awk printf with variable\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[445,1042],"class_list":["post-29680","post","type-post","status-publish","format-standard","hentry","category-solved","tag-awk","tag-bash"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>[Solved] awk printf with variable - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-awk-printf-with-variable\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] awk printf with variable - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Note that foo=4\/3 sets foo to the string 4\/3. When that is printed via %f, &#8216;4\/3&#8217; is treated as 4; when that is printed with %s, it is printed as 4\/3. If you want to evaluate the expression, you need it evaluated inside the script. For example: awk &#039;END {printf &quot;%fn&quot;, foonum\/fooden }&#039; foonum=4 ... 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When that is printed via %f, &#8216;4\/3&#8217; is treated as 4; when that is printed with %s, it is printed as 4\/3. If you want to evaluate the expression, you need it evaluated inside the script. For example: awk 'END {printf \"%fn\", foonum\/fooden }' foonum=4 ... 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