{"id":675,"date":"2011-01-11T20:10:42","date_gmt":"2011-01-11T19:10:42","guid":{"rendered":"https:\/\/thebc.ch\/blog\/?p=675"},"modified":"2013-02-01T13:00:26","modified_gmt":"2013-02-01T12:00:26","slug":"validate-ip","status":"publish","type":"post","link":"https:\/\/thebc.ch\/blog\/?p=675","title":{"rendered":"Validate IP"},"content":{"rendered":"<div dir=\"ltr\">\n<pre>#!\/bin\/bash\r\n\r\n# What a nice pice of shell-programing... thx to Chris F.A. Johnson @ comp.unix.shell\r\nis_ip() {\r\n\tcase \"$*\" in\r\n\t\t\"\"|*[!0-9.]*|*[!0-9]) return 1\u00c2\u00a0;;\r\n\tesac\r\n\tlocal IFS=.\r\n\tset -- $*\r\n\t[ $# -eq 4 ] &amp;&amp;\r\n\t[ ${1:-666} -le 255 ] &amp;&amp; [ ${2:-666} -le 255 ] &amp;&amp;\r\n\t[ ${3:-666} -le 255 ] &amp;&amp; [ ${4:-666} -le 254 ]\r\n}\r\n\r\nip=\r\nuntil is_ip $ip; do\r\n  echo -n \"Please enter the highest ip in the range: \"\r\n  read ip\r\ndone<\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>#!\/bin\/bash # What a nice pice of shell-programing&#8230; thx to Chris F.A. Johnson @ comp.unix.shell is_ip() { case &#8220;$*&#8221; in &#8220;&#8221;|*[!0-9.]*|*[!0-9]) return 1\u00c2\u00a0;; esac local IFS=. set &#8212; $* [ $# -eq 4 ] &amp;&amp; [ ${1:-666} -le 255 ] &hellip; <a href=\"https:\/\/thebc.ch\/blog\/?p=675\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-675","post","type-post","status-publish","format-standard","hentry","category-bash"],"_links":{"self":[{"href":"https:\/\/thebc.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts\/675","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thebc.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thebc.ch\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thebc.ch\/blog\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/thebc.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=675"}],"version-history":[{"count":5,"href":"https:\/\/thebc.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts\/675\/revisions"}],"predecessor-version":[{"id":2685,"href":"https:\/\/thebc.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts\/675\/revisions\/2685"}],"wp:attachment":[{"href":"https:\/\/thebc.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thebc.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thebc.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}