{"id":300,"date":"2016-06-21T13:26:33","date_gmt":"2016-06-21T10:26:33","guid":{"rendered":"https:\/\/skilx.cc\/unlix\/?p=300"},"modified":"2019-10-25T06:17:39","modified_gmt":"2019-10-25T03:17:39","slug":"%d0%bf%d1%80%d0%be%d0%b2%d0%b5%d1%80%d0%ba%d0%b0-%d1%81%d1%83%d1%89%d0%b5%d1%81%d1%82%d0%b2%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-%d1%84%d0%b0%d0%b9%d0%bb%d0%b0-%d0%b4%d0%b8%d1%80%d0%b5%d0%ba%d1%82","status":"publish","type":"post","link":"https:\/\/skilx.cc\/unlix\/%d0%bf%d1%80%d0%be%d0%b2%d0%b5%d1%80%d0%ba%d0%b0-%d1%81%d1%83%d1%89%d0%b5%d1%81%d1%82%d0%b2%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-%d1%84%d0%b0%d0%b9%d0%bb%d0%b0-%d0%b4%d0%b8%d1%80%d0%b5%d0%ba%d1%82\/","title":{"rendered":"\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0444\u0430\u0439\u043b\u0430, \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0438\u0438, \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u0447\u0435\u0440\u0435\u0437 BASH"},"content":{"rendered":"<p><!--more--><\/p>\n<p>\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0444\u0430\u0439\u043b\u0430:<\/p>\n<p><code>if ! [ -f \/path\/to\/file ]; then<br \/>\necho 'No file'<br \/>\nfi<\/code><\/p>\n<p>\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0438\u0438:<\/p>\n<p><code>if ! [ -d \/path\/directory\/ ]; then<br \/>\necho 'No directory'<br \/>\nfi<\/code><\/p>\n<p>\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f:<\/p>\n<p><code>grep \"username:\" \/etc\/passwd &gt;\/dev\/null<br \/>\nif [ $? -ne 0 ]; then<br \/>\necho 'No username found'<br \/>\nfi<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[280,3,283,2,11,281,284,282],"class_list":["post-300","post","type-post","status-publish","format-standard","hentry","category-15","tag-bash","tag-linux","tag-283","tag-2","tag-11","tag-281","tag-284","tag-282"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0444\u0430\u0439\u043b\u0430: if ! 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[ -d \/path\/directory\/ ]; then echo &#039;No directory&#039; fi \u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f: grep &quot;username:&quot; \/etc\/passwd &gt;\/dev\/null if [ $? -ne 0 ]; then echo &#039;No username found&#039; fi\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"UNLIX\"\/>\n\t<meta name=\"keywords\" content=\"bash,linux,\u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0438\u0438,\u043b\u0438\u043d\u0443\u043a\u0441,\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f,\u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430,\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f,\u0444\u0430\u0439\u043b\u0430,\u0432\u0441\u0435 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u044b\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/skilx.cc\/unlix\/%d0%bf%d1%80%d0%be%d0%b2%d0%b5%d1%80%d0%ba%d0%b0-%d1%81%d1%83%d1%89%d0%b5%d1%81%d1%82%d0%b2%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-%d1%84%d0%b0%d0%b9%d0%bb%d0%b0-%d0%b4%d0%b8%d1%80%d0%b5%d0%ba%d1%82\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.9\" \/>\n\t\t<meta property=\"og:locale\" content=\"ru_RU\" \/>\n\t\t<meta property=\"og:site_name\" content=\"UNLIX - \u0437\u0430\u043c\u0435\u0442\u043a\u0438 \u043e UNIX \u0438 LINUX \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0444\u0430\u0439\u043b\u0430, \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0438\u0438, \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u0447\u0435\u0440\u0435\u0437 BASH | UNLIX\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0444\u0430\u0439\u043b\u0430: if ! [ -f \/path\/to\/file ]; then echo &#039;No file&#039; fi \u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0438\u0438: if ! [ -d \/path\/directory\/ ]; then echo &#039;No directory&#039; fi \u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f: grep &quot;username:&quot; \/etc\/passwd &gt;\/dev\/null if [ $? -ne 0 ]; then echo &#039;No username found&#039; fi\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/skilx.cc\/unlix\/%d0%bf%d1%80%d0%be%d0%b2%d0%b5%d1%80%d0%ba%d0%b0-%d1%81%d1%83%d1%89%d0%b5%d1%81%d1%82%d0%b2%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-%d1%84%d0%b0%d0%b9%d0%bb%d0%b0-%d0%b4%d0%b8%d1%80%d0%b5%d0%ba%d1%82\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/unlix.ru\/wp-content\/uploads\/2018\/11\/unlix_logo.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/unlix.ru\/wp-content\/uploads\/2018\/11\/unlix_logo.jpg\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2016-06-21T10:26:33+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2019-10-25T03:17:39+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:title\" content=\"\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0444\u0430\u0439\u043b\u0430, \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0438\u0438, \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u0447\u0435\u0440\u0435\u0437 BASH | UNLIX\" \/>\n\t\t<meta name=\"twitter:description\" content=\"\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0444\u0430\u0439\u043b\u0430: if ! [ -f \/path\/to\/file ]; then echo &#039;No file&#039; fi \u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0438\u0438: if ! 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