{"id":1350,"date":"2012-10-31T16:34:40","date_gmt":"2012-10-31T16:34:40","guid":{"rendered":"http:\/\/blog.designed79.co.uk\/?p=1350"},"modified":"2012-10-31T16:36:51","modified_gmt":"2012-10-31T16:36:51","slug":"bash-check-a-variable","status":"publish","type":"post","link":"https:\/\/blog.designed79.co.uk\/?p=1350","title":{"rendered":"Bash check a variable is a number or text"},"content":{"rendered":"<div class=\"codecolorer-container text default\" style=\"overflow:auto;white-space:nowrap;\"><div class=\"text codecolorer\">#!\/bin\/bash<br \/>\n<br \/>\nvar=a<br \/>\n<br \/>\nif [ &quot;$var&quot; -eq &quot;$var&quot; ] 2&gt;\/dev\/null <br \/>\nthen<br \/>\n&nbsp; echo number<br \/>\nelse<br \/>\n&nbsp; echo not a number<br \/>\nfi<\/div><\/div>\n<p>Redirection of standard error is there to hide the &#8220;integer expression expected&#8221; message that bash prints out in case we do not have a number.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>#!\/bin\/bash var=a if [ &quot;$var&quot; -eq &quot;$var&quot; ] 2&gt;\/dev\/null then &nbsp; echo number else &nbsp; echo not a number fi Redirection of [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[23,7,20],"class_list":["post-1350","post","type-post","status-publish","format-standard","hentry","category-info-on-tech","tag-bash","tag-osx","tag-ubuntu"],"_links":{"self":[{"href":"https:\/\/blog.designed79.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/1350","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.designed79.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.designed79.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.designed79.co.uk\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.designed79.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1350"}],"version-history":[{"count":0,"href":"https:\/\/blog.designed79.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/1350\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.designed79.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.designed79.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.designed79.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}