{"id":9615,"date":"2015-07-02T07:14:03","date_gmt":"2015-07-02T11:14:03","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/?p=9615"},"modified":"2015-11-10T08:36:45","modified_gmt":"2015-11-10T13:36:45","slug":"%e0%a6%87%e0%a6%89%e0%a6%a8%e0%a6%bf%e0%a6%95%e0%a7%8d%e0%a6%b8%e0%a6%83-%e0%a6%b8%e0%a7%87%e0%a6%b2","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=9615","title":{"rendered":"\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8\u0983 \u09b8\u09c7\u09b2 \u0995\u09bf? (Unix &#8211; What is Shells?)"},"content":{"rendered":"<p>\u09b0\u09bf\u09a6\u0993\u09df\u09be\u09a8 \u09ac\u09bf\u09a8 \u09b6\u09be\u09ae\u09c0\u09ae<\/p>\n<p>&nbsp;<\/p>\n<p>\u09b8\u09c7\u09b2 \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u09be\u09b0\u0995\u09c7 \u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u09b8\u09bf\u09b8\u09cd\u099f\u09c7\u09ae \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be\u09b0 \u09b8\u09c1\u09af\u09cb\u0997 \u0995\u09b0\u09c7 \u09a6\u09c7\u09df\u0964 \u098f\u099f\u09bf \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0\u0995\u09be\u09b0\u09c0\u09b0 \u0995\u09be\u099b \u09a5\u09c7\u0995\u09c7 \u0987\u09a8\u09aa\u09c1\u099f \u09b8\u0982\u0997\u09cd\u09b0\u09b9 \u0995\u09b0\u09c7 \u098f\u09ac\u0982 \u09a4\u09be\u09b0 \u09ad\u09bf\u09a4\u09cd\u09a4\u09bf\u09a4\u09c7 \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u0995\u09c7 \u09b8\u09ae\u09cd\u09aa\u09a8\u09cd\u09a8 \u0995\u09b0\u09c7 \u09a5\u09be\u0995\u09c7\u0964 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\u09b0\u09be\u0996\u09c7\u0964<\/p>\n<p>\u09a8\u09bf\u099a\u09c7\u09b0 \u0989\u09a6\u09be\u09b9\u09b0\u09a3\u09c7 \u09a1\u09c7\u099f \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1\u09c7\u09b0 \u0989\u09a6\u09be\u09b9\u09b0\u09a3 \u09a6\u09c7\u09df\u09be \u09b9\u09b2,<\/p>\n<hr \/>\n<pre>$date\r\nThuJun2508:30:19 MST2009<\/pre>\n<hr \/>\n<p>\u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09aa\u09cd\u09b0\u09ae\u09cd\u09aa\u099f\u0995\u09c7 \u09aa\u09b0\u09bf\u09ac\u09c7\u09b6 \u099a\u09b2\u0995\u09c7\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u0995\u09be\u09b8\u09cd\u099f\u09ae\u09be\u0987\u099c \u0995\u09b0\u09be \u09af\u09be\u09df\u0964<\/p>\n<p>&nbsp;<\/p>\n<h2>\u09b8\u09c7\u09b2 \u099f\u09be\u0987\u09aa<\/h2>\n<p>\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8\u09c7 \u09aa\u09cd\u09b0\u09a7\u09be\u09a8\u09a4 \u09a6\u09c1\u0987 \u09a7\u09b0\u09a3\u09c7\u09b0 \u09b8\u09c7\u09b2 \u099f\u09be\u0987\u09aa \u0986\u099b\u09c7,<\/p>\n<ul>\n<li>\u09ac\u09b0\u09cd\u09a8 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\u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u0986\u0997\u09c7\u0987 \u099c\u09be\u09a8\u09be\u09a4\u09c7 \u09b9\u09df \u09af\u09c7 \u098f\u09b0\u0995\u09ae\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u099a\u09be\u09b2\u09c1 \u0995\u09b0\u09be \u09b9\u099a\u09cd\u099b\u09c7\u0964<\/p>\n<hr \/>\n<pre>\u00a0#!\/bin\/sh<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u098f\u0987 \u09a7\u09b0\u09a3\u09c7\u09b0 \u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u099a\u09be\u09b2\u09c1\u09b0 \u099c\u09a8\u09cd\u09af \u0986\u0997\u09c7 \u09b8\u09c7\u09ac\u09be\u0982 (<em>shebang<\/em>) \u09b2\u09be\u0987\u09a8 \u098f\u09ac\u0982 \u09a4\u09be\u09b0 \u09aa\u09b0 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09af\u09cb\u0997 \u0995\u09b0\u09a4\u09c7 \u09b9\u09df\u0964<\/p>\n<hr \/>\n<pre>#!\/bin\/bashpwdls<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<h2>\u09b8\u09c7\u09b2 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1<\/h2>\n<p>\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u09c7 \u09a8\u09bf\u09ae\u09cd\u09a8\u09cb\u0995\u09cd\u09a4 \u09ad\u09be\u09ac\u09c7 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09b2\u09c7\u0996\u09be \u09af\u09be\u09df,<\/p>\n<hr \/>\n<pre>#!\/bin\/bash\r\n\u00a0\r\n# Author : Zara Ali\r\n# Copyright (c) Tutorialspoint.com\r\n# Script follows here:\r\npwd\r\nls<\/pre>\n<hr \/>\n<p>\u0989\u09aa\u09b0\u09c7\u09b0 \u0989\u09aa\u09be\u09a6\u09be\u09a8\u0997\u09c1\u09b2\u09cb \u09b8\u0982\u09b0\u0995\u09cd\u09b7\u09a3 \u0995\u09b0\u09c7 \u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u0995\u09c7 \u09b8\u09ae\u09cd\u09aa\u09be\u09a6\u09a8\u09af\u09cb\u0997\u09cd\u09af \u0995\u09b0\u09be \u09b9\u09df,<\/p>\n<hr \/>\n<pre>$chmod+x test.sh<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u098f\u0996\u09a8 \u09b8\u09ae\u09cd\u09aa\u09be\u09a6\u09a8\u09af\u09cb\u0997\u09cd\u09af \u09b8\u09c7\u09b2 \u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09aa\u09be\u0993\u09df\u09be \u0997\u09c7\u09b2\u09cb,<\/p>\n<hr \/>\n<pre>$.\/test.sh<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u09af\u09be \u09a5\u09c7\u0995\u09c7 \u09a8\u09bf\u09ae\u09cd\u09a8\u09cb\u0995\u09cd\u09a4 \u09ab\u09b2\u09be\u09ab\u09b2 \u09aa\u09be\u0993\u09df\u09be \u09af\u09be\u09df,<\/p>\n<hr \/>\n<pre>\/home\/amrood\r\nindex.htm\u00a0 unix-basic_utilities.htm\u00a0 unix-directories.htm\u00a0 \r\ntest.sh\u00a0\u00a0\u00a0 unix-communication.htm\u00a0\u00a0\u00a0 unix-environment.htm<\/pre>\n<hr \/>\n<p>\u09ac\u09b0\u09cd\u09a4\u09ae\u09be\u09a8 \u09a1\u09bf\u09b0\u09c7\u0995\u09cd\u099f\u09b0\u09bf\u09a4\u09c7 \u09a5\u09be\u0995\u09be \u0995\u09cb\u09a8\u0993 \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u09b8\u09ae\u09cd\u09aa\u09be\u09a6\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09af <strong>.\/program_name<\/strong> \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09df\u0964<\/p>\n<p>&nbsp;<\/p>\n<h2>\u098f\u0995\u09cd\u09b8\u099f\u09c7\u09a8\u09a1\u09c7\u09a1 \u09b8\u09c7\u09b2 \u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f<\/h2>\n<p>\u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 <strong>read<\/strong> \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09c7 \u09af\u09be \u0995\u09c0\u09ac\u09cb\u09b0\u09cd\u09a1 \u09a5\u09c7\u0995\u09c7 \u0987\u09a8\u09aa\u09c1\u099f \u09a8\u09c7\u09df \u098f\u09ac\u0982 PERSON \u099a\u09b2\u0995\u09c7\u09b0 \u09ae\u09be\u09a8 \u09ac\u09bf\u09ac\u09c3\u09a4 \u0995\u09b0\u09c7 \u0993 STDOUT \u098f \u09ae\u09c1\u09a6\u09cd\u09b0\u09bf\u09a4 \u0995\u09b0\u09c7\u0964<\/p>\n<hr \/>\n<pre>#!\/bin\/sh\r\n\u00a0\r\n# Author : Zara Ali\r\n# Copyright (c) Tutorialspoint.com\r\n# Script follows here:\r\n\u00a0\r\necho \"What is your name?\"\r\nread PERSON\r\necho \"Hello, $PERSON\"<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u09c7\u09b0 \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u09ae\u09c2\u09b2\u0995 \u09b8\u09ae\u09cd\u09aa\u09be\u09a6\u09a8,<\/p>\n<hr \/>\n<pre>$.\/test.sh\r\nWhat is your name?\r\nZara Ali\r\nHello, Zara Ali\r\n$<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u09b0\u09bf\u09a6\u0993\u09df\u09be\u09a8 \u09ac\u09bf\u09a8 \u09b6\u09be\u09ae\u09c0\u09ae &nbsp; \u09b8\u09c7\u09b2 \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u09be\u09b0\u0995\u09c7 \u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u09b8\u09bf\u09b8\u09cd\u099f\u09c7\u09ae \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be\u09b0 \u09b8\u09c1\u09af\u09cb\u0997 \u0995\u09b0\u09c7 \u09a6\u09c7\u09df\u0964 \u098f\u099f\u09bf \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0\u0995\u09be\u09b0\u09c0\u09b0 \u0995\u09be\u099b \u09a5\u09c7\u0995\u09c7 \u0987\u09a8\u09aa\u09c1\u099f \u09b8\u0982\u0997\u09cd\u09b0\u09b9 \u0995\u09b0\u09c7 \u098f\u09ac\u0982 \u09a4\u09be\u09b0 \u09ad\u09bf\u09a4\u09cd\u09a4\u09bf\u09a4\u09c7 \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u0995\u09c7 \u09b8\u09ae\u09cd\u09aa\u09a8\u09cd\u09a8 \u0995\u09b0\u09c7 \u09a5\u09be\u0995\u09c7\u0964 \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09be\u09a6\u09a8\u09be \u09b6\u09c7\u09b7 \u09b9\u09b2\u09c7 \u098f\u099f\u09bf \u0986\u0989\u099f\u09aa\u09c1\u099f \u09b0\u09c2\u09aa\u09c7 \u0989\u09aa\u09b8\u09cd\u09a5\u09be\u09aa\u09bf\u09a4 \u09b9\u09df\u0964 \u09b8\u09c7\u09b2 \u09ae\u09c2\u09b2\u09a4 \u098f\u0995\u09a7\u09b0\u09a8\u09c7\u09b0 \u09aa\u09b0\u09bf\u09b8\u09cd\u09a5\u09bf\u09a4\u09bf \u09af\u09be\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u0986\u09ae\u09be\u09a6\u09c7\u09b0 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1, \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0993 \u09b8\u09c7\u09b2 \u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09aa\u09b0\u09bf\u099a\u09be\u09b2\u09bf\u09a4 \u09b9\u09df\u0964 \u09b8\u09c7\u09b2\u09c7\u09b0 \u09ac\u09bf\u09ad\u09bf\u09a8\u09cd\u09a8 \u09aa\u09cd\u09b0\u0995\u09b0\u09a3 \u09a5\u09be\u0995\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7, &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"http:\/\/bangla.sitestree.com\/?p=9615\">Continue reading<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1231],"tags":[1285,1237,1236,1286,1662,1284,552],"class_list":["post-9615","post","type-post","status-publish","format-standard","hentry","category-----linux-and-unix","tag-shell","tag-unix","tag-1236","tag-1286","tag-1662","tag-1284","tag-552","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":9589,"url":"http:\/\/bangla.sitestree.com\/?p=9589","url_meta":{"origin":9615,"position":0},"title":"\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 &#8211; \u098f\u09a8\u09ad\u09be\u09af\u09bc\u09b0\u09a8\u09ae\u09c7\u09a8\u09cd\u099f (Unix &#8211; Environment)","author":"Author-Check- Article-or-Video","date":"June 29, 2015","format":false,"excerpt":"\u09b0\u09bf\u09a6\u0993\u09df\u09be\u09a8 \u09ac\u09bf\u09a8 \u09b6\u09be\u09ae\u09c0\u09ae \u00a0 \u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u0997\u09c1\u09b0\u09c1\u09a4\u09cd\u09ac\u09aa\u09c2\u09b0\u09cd\u09a3 \u09a7\u09be\u09b0\u09a3\u09be \u09b9\u09b2 \u098f\u09b0 \u098f\u09ad\u09be\u09df\u09b0\u09a8\u09ae\u09c7\u09a8\u09cd\u099f , \u09af\u09be \u098f\u09ad\u09be\u09df\u09b0\u09a8\u09ae\u09c7\u09a8\u09cd\u099f \u099a\u09b2\u0995\u09c7\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u09ac\u09bf\u09ac\u09c3\u09a4 \u09b9\u09df\u0964 \u098f\u09a6\u09c7\u09b0 \u0995\u09df\u09c7\u0995\u099f\u09bf \u09b8\u09bf\u09b8\u09cd\u099f\u09c7\u09ae\u09c7\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7, \u0995\u09df\u09c7\u0995\u099f\u09bf \u09b8\u09c7\u09b2\u09c7\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7, \u0995\u09df\u09c7\u0995\u099f\u09bf \u0986\u09ae\u09be\u09a6\u09c7\u09b0 \u0985\u09b0\u09cd\u09a5\u09be\u09ce \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0\u0995\u09be\u09b0\u09c0\u09a6\u09c7\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u0986\u09b0 \u0995\u09df\u09c7\u0995\u099f\u09bf \u098f\u09ae\u09a8 \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u09c7\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u09af\u09be \u0995\u09bf\u09a8\u09be \u0985\u09a8\u09cd\u09af \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u09b8\u09c7\u099f \u0995\u09b0\u09c7\u0964 \u099a\u09b2\u0995 \u09b9\u09b2 \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09af\u09be\u09b0 \u0989\u09aa\u09b0 \u0986\u09ae\u09b0\u09be \u09ae\u09be\u09a8 \u0986\u09b0\u09cb\u09aa\u2026","rel":"","context":"In &quot;\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix&quot;","block_context":{"text":"\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix","link":"http:\/\/bangla.sitestree.com\/?cat=1231"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":9641,"url":"http:\/\/bangla.sitestree.com\/?p=9641","url_meta":{"origin":9615,"position":1},"title":"\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8\u0983 \u09b8\u09c7\u09b2 \u0995\u09cb\u099f\u09bf\u0982 \u09ae\u09c7\u0995\u09be\u09a8\u09bf\u099c\u09ae (Unix &#8211; Shell Quoting Mechanisms)","author":"Author-Check- Article-or-Video","date":"July 7, 2015","format":false,"excerpt":"\u09b0\u09bf\u09a6\u0993\u09df\u09be\u09a8 \u09ac\u09bf\u09a8 \u09b6\u09be\u09ae\u09c0\u09ae \u00a0 \u09ae\u09c7\u099f\u09be\u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u09b8\u09c7\u09b2 \u09ac\u09bf\u09ad\u09bf\u09a8\u09cd\u09a8 \u09ae\u09c7\u099f\u09be\u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09c7 \u09af\u09be\u09b0\u09be \u09b8\u09c7\u09b2 \u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 \u09b9\u0993\u09df\u09be\u09b0 \u09b8\u09ae\u09df \u09b8\u09cd\u09ac\u09a4\u09a8\u09cd\u09a4\u09cd\u09b0 \u0985\u09b0\u09cd\u09a5 \u09aa\u09cd\u09b0\u0995\u09be\u09b6 \u0995\u09b0\u09c7\u0964 \u09af\u09c7\u09ae\u09a8 *?[]' \" \\ $ ; & ( ) | ^ < > new-line space tab \u00a0 \u0989\u09a6\u09be\u09b9\u09b0\u09a3, * \u09ac\u09be ? \u099a\u09bf\u09b9\u09cd\u09a8 \u09aa\u09cd\u09b0\u09bf\u09a8\u09cd\u099f \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u09af\u09c7 \u0995\u09cb\u09a1 \u09b2\u09bf\u0996\u09ac \u09a4\u09be\u2026","rel":"","context":"In &quot;\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix&quot;","block_context":{"text":"\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix","link":"http:\/\/bangla.sitestree.com\/?cat=1231"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":9627,"url":"http:\/\/bangla.sitestree.com\/?p=9627","url_meta":{"origin":9615,"position":2},"title":"\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8\u0983 \u09b8\u09cd\u09aa\u09c7\u09b6\u09be\u09b2 \u09ad\u09c7\u09b0\u09bf\u09df\u09c7\u09ac\u09b2\u09b8 (Unix &#8211; Special Variables)","author":"Author-Check- Article-or-Video","date":"July 3, 2015","format":false,"excerpt":"\u09b0\u09bf\u09a6\u0993\u09df\u09be\u09a8 \u09ac\u09bf\u09a8 \u09b6\u09be\u09ae\u09c0\u09ae \u00a0 \u09aa\u09c2\u09b0\u09cd\u09ac\u09ac\u09b0\u09cd\u09a4\u09c0 \u099f\u09bf\u0989\u099f\u09cb\u09b0\u09bf\u09df\u09be\u09b2\u09c7 \u09ad\u09c7\u09b0\u09bf\u09df\u09c7\u09ac\u09b2 \u09a8\u09be\u09ae\u09c7 \u09a8\u09a8 \u0986\u09b2\u09ab\u09be\u09a8\u09bf\u0989\u09ae\u09c7\u09b0\u09bf\u0995 \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u09ac\u09bf\u09b7\u09df\u09c7 \u09b8\u09a4\u09b0\u09cd\u0995 \u0995\u09b0\u09be \u09b9\u09df\u09c7\u099b\u09bf\u09b2, \u0995\u09be\u09b0\u09a3 \u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u099a\u09b2\u0995\u09c7 \u098f\u09a6\u09c7\u09b0 \u09ad\u09bf\u09a8\u09cd\u09a8 \u0985\u09b0\u09cd\u09a5 \u09b9\u09df\u0964 \u09af\u09c7\u09ae\u09a8, $ \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u0995\u09be\u09b0\u09c7\u09a8\u09cd\u099f \u09b8\u09c7\u09b2\u09c7 \u0986\u0987\u09a1\u09bf \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u09ac\u09be \u09aa\u09bf\u0986\u0987\u09a1\u09bf \u09aa\u09cd\u09b0\u0995\u09cd\u09b0\u09bf\u09df\u09be \u09ac\u09cb\u099d\u09be\u09df\u0964 $echo $$ \u00a0 \u0989\u09aa\u09b0\u09c7\u09b0 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u0995\u09be\u09b0\u09c7\u09a8\u09cd\u099f \u09b8\u09c7\u09b2\u09c7\u09b0 \u09aa\u09bf\u0986\u0987\u09a1\u09bf \u09af\u09c7\u09ad\u09be\u09ac\u09c7 \u09ac\u09cb\u099d\u09be\u09df, 29949 \u00a0 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Unix","link":"http:\/\/bangla.sitestree.com\/?cat=1231"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":9544,"url":"http:\/\/bangla.sitestree.com\/?p=9544","url_meta":{"origin":9615,"position":4},"title":"\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 : \u09b6\u09c1\u09b0\u09c1\u09b0 \u0995\u09a5\u09be (Unix &#8211; Getting Started)","author":"Author-Check- Article-or-Video","date":"June 26, 2015","format":false,"excerpt":"\u09b0\u09bf\u09a6\u0993\u09df\u09be\u09a8 \u09ac\u09bf\u09a8 \u09b6\u09be\u09ae\u09c0\u09ae \u00a0 \u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0995\u09bf ? \u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0985\u09aa\u09be\u09b0\u09c7\u099f\u09bf\u0982 \u09b8\u09bf\u09b8\u09cd\u099f\u09c7\u09ae \u09b9\u09b2 \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09b8\u09c7\u099f \u09af\u09be \u0995\u09ae\u09cd\u09aa\u09bf\u0989\u099f\u09be\u09b0 \u0993 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0\u0995\u09be\u09b0\u09c0\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09b2\u09bf\u0999\u09cd\u0995 \u09b9\u09bf\u09b8\u09c7\u09ac\u09c7 \u0995\u09be\u099c \u0995\u09b0\u09c7\u0964 \u098f\u09a4\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0\u0995\u09be\u09b0\u09c0 \u09b8\u09c7\u09b2 \u09a8\u09be\u09ae\u09c7\u09b0 \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u09c7\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u0995\u09be\u09b0\u09cd\u09a8\u09c7\u09b2\u09c7 \u09af\u09cb\u0997\u09be\u09af\u09cb\u0997 \u0995\u09b0\u09c7\u0964 \u09b8\u09c7\u09b2 \u09b9\u09b2 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09b2\u09be\u0987\u09a8 \u0987\u09a8\u09cd\u099f\u09be\u09b0\u09aa\u09cd\u09b0\u09bf\u099f\u09be\u09b0, \u098f\u099f\u09bf \u0987\u0989\u099c\u09be\u09b0\u09c7\u09b0 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u0985\u09a8\u09c1\u09ac\u09be\u09a6 \u0995\u09b0\u09c7 \u0995\u09be\u09b0\u09cd\u09a8\u09c7\u09b2\u09c7\u09b0 \u09aa\u09be\u09a0\u09af\u09cb\u0997\u09cd\u09af \u09ad\u09be\u09b7\u09be\u09df \u09aa\u09b0\u09bf\u09ac\u09b0\u09cd\u09a4\u09a8 \u0995\u09b0\u09c7\u0964 \u09e7\u09ef\u09ec\u09ef \u09b8\u09be\u09b2\u09c7 \u098f\u099f\u09bf\u098f\u09a8\u09cd\u09a1\u099f\u09bf\u2026","rel":"","context":"In &quot;\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix&quot;","block_context":{"text":"\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix","link":"http:\/\/bangla.sitestree.com\/?cat=1231"},"img":{"alt_text":"\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u0995\u09be\u09a0\u09be\u09ae\u09cb","src":"https:\/\/i0.wp.com\/www.tutorialspoint.com\/unix\/images\/unix_architecture.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":9633,"url":"http:\/\/bangla.sitestree.com\/?p=9633","url_meta":{"origin":9615,"position":5},"title":"\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8\u0983 \u09b8\u09c7\u09b2 \u09a1\u09bf\u09b8\u09bf\u09b6\u09a8 \u09ae\u09c7\u0995\u09bf\u0982 (Unix &#8211; Shell Decision Making)","author":"Author-Check- Article-or-Video","date":"July 5, 2015","format":false,"excerpt":"\u09b0\u09bf\u09a6\u0993\u09df\u09be\u09a8 \u09ac\u09bf\u09a8 \u09b6\u09be\u09ae\u09c0\u09ae \u00a0 \u09b8\u09c7\u09b2 \u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b2\u09c7\u0996\u09be\u09b0 \u09b8\u09ae\u09df \u09a6\u09c1\u099f\u09bf \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u09aa\u09be\u09a5 \u09a5\u09c7\u0995\u09c7 \u098f\u0995\u099f\u09bf \u09ac\u09c7\u099b\u09c7 \u09a8\u09c7\u09df\u09be\u09b0 \u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8 \u09b9\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7, \u09b8\u09c7\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09b8\u09a0\u09bf\u0995 \u09b8\u09bf\u09a6\u09cd\u09a7\u09be\u09a8\u09cd\u09a4 \u09a8\u09c7\u09df\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u0995\u09a8\u09cd\u09a1\u09bf\u09b6\u09a8\u09be\u09b2 \u09b8\u09cd\u099f\u09c7\u099f\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af \u09a8\u09c7\u09df\u09be \u09af\u09c7\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964 \u09ad\u09bf\u09a8\u09cd\u09a8 \u0995\u09a8\u09cd\u09a1\u09bf\u09b6\u09a8\u09c7 \u09ad\u09bf\u09a8\u09cd\u09a8 \u09ad\u09bf\u09a8\u09cd\u09a8 \u09aa\u09a6\u0995\u09cd\u09b7\u09c7\u09aa \u09a8\u09bf\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7 \u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u09b8\u09c7\u09b2 \u098f\u09ae\u09a8 \u0995\u09a8\u09cd\u09a1\u09bf\u09b6\u09a8\u09be\u09b2 \u09b8\u09cd\u099f\u09c7\u099f\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af \u09a8\u09c7\u09df, \u098f\u0996\u09be\u09a8\u09c7 \u0986\u09ae\u09b0\u09be \u09a6\u09c1\u0987 \u09a7\u09b0\u09a3\u09c7\u09b0 \u09a1\u09bf\u09b8\u09bf\u09b6\u09a8 \u09ae\u09c7\u0995\u09bf\u0982 \u09b8\u09cd\u099f\u09c7\u099f\u09ae\u09c7\u09a8\u09cd\u099f\u2026","rel":"","context":"In &quot;\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix&quot;","block_context":{"text":"\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix","link":"http:\/\/bangla.sitestree.com\/?cat=1231"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/9615","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9615"}],"version-history":[{"count":3,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/9615\/revisions"}],"predecessor-version":[{"id":9618,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/9615\/revisions\/9618"}],"wp:attachment":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9615"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}