{"id":1442,"date":"2015-09-16T13:05:41","date_gmt":"2015-09-16T18:05:41","guid":{"rendered":"http:\/\/jungwon.kim\/blog\/?p=1442"},"modified":"2015-09-16T13:05:41","modified_gmt":"2015-09-16T18:05:41","slug":"whats-the-best-way-to-check-that-environment-variables-are-set-in-unix-shellscript","status":"publish","type":"post","link":"https:\/\/blog.jungwon.kim\/?p=1442","title":{"rendered":"What&#8217;s the best way to check that environment variables are set in Unix shellscript"},"content":{"rendered":"<p><a href=\"http:\/\/stackoverflow.com\/questions\/307503\/whats-the-best-way-to-check-that-environment-variables-are-set-in-unix-shellscr\">http:\/\/stackoverflow.com\/questions\/307503\/whats-the-best-way-to-check-that-environment-variables-are-set-in-unix-shellscr<\/a><\/p>\n<pre class=\"lang-sh prettyprint prettyprinted\"><code><span class=\"pun\">[<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">z <\/span><span class=\"str\">\"$STATE\"<\/span> <span class=\"pun\">]<\/span> <span class=\"pun\">&amp;&amp;<\/span><span class=\"pln\"> echo <\/span><span class=\"str\">\"Need to set STATE\"<\/span> <span class=\"pun\">&amp;&amp;<\/span><span class=\"pln\"> exit <\/span><span class=\"lit\">1<\/span><span class=\"pun\">;<\/span><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>http:\/\/stackoverflow.com\/questions\/307503\/whats-the-best-way-to-check-that-environment-variables-are-set-in-unix-shellscr [ -z &#8220;$STATE&#8221; ] &amp;&amp; echo &#8220;Need to set STATE&#8221; &amp;&amp; exit 1;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-1442","post","type-post","status-publish","format-standard","hentry","category-cs"],"_links":{"self":[{"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=\/wp\/v2\/posts\/1442","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1442"}],"version-history":[{"count":0,"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=\/wp\/v2\/posts\/1442\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1442"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1442"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}