{"id":9650,"date":"2015-07-09T06:34:58","date_gmt":"2015-07-09T10:34:58","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/?p=9650"},"modified":"2015-11-10T08:33:55","modified_gmt":"2015-11-10T13:33:55","slug":"%e0%a6%87%e0%a6%89%e0%a6%a8%e0%a6%bf%e0%a6%95%e0%a7%8d%e0%a6%b8-sed-%e0%a6%8f%e0%a6%95%e0%a7%8d%e0%a6%b8%e0%a6%aa%e0%a7%8d%e0%a6%b0%e0%a7%87%e0%a6%b6%e0%a6%a8","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=9650","title":{"rendered":"\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 &#8211; SED \u098f\u09b0 \u09b8\u09be\u09a5\u09c7 \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 (Unix &#8211; Regular Expressions with SED)"},"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>\u0986\u099c\u0995\u09c7\u09b0 \u099f\u09bf\u0989\u099f\u09cb\u09b0\u09bf\u09df\u09be\u09b2\u09c7 \u0986\u09ae\u09b0\u09be \u09a6\u09c7\u0996\u09ac \u0995\u09c0\u09ad\u09be\u09ac\u09c7 sed \u09a4\u09c7 \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09df\u0964<\/p>\n<p>&nbsp;<\/p>\n<h2>\u098f\u09b8\u0987\u09a1\u09bf\u0995\u09c7 \u0987\u09a8\u09ad\u09cb\u0995 \u0995\u09b0\u09be<\/h2>\n<p>\u09aa\u09be\u0987\u09aa\u09c7\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u098f\u09b8\u0987\u09a1\u09bf\u09a4\u09c7 \u09a1\u09be\u099f\u09be \u09aa\u09cd\u09b0\u09c7\u09b0\u09a3 \u0995\u09b0\u09c7 \u098f\u0995\u09c7 \u0987\u09a8\u09ad\u09cb\u0995 \u0995\u09b0\u09be \u09af\u09be\u09df,<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed\r\nUsage: sed [OPTION]... {script-other-script} [input-file]...\r\n\u00a0\r\n\u00a0 -n, --quiet, --silent\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 suppress automatic printing of pattern space\r\n\u00a0 -e script, --expression=script\r\n...............................<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<h2>\u098f\u09b8\u0987\u09a1\u09bf\u09b0 \u099c\u09a8\u09cd\u09af \u09b8\u09be\u09a7\u09be\u09b0\u09a3 \u09b8\u09bf\u09a8\u099f\u09cd\u09af\u09be\u0995\u09cd\u09b8<\/h2>\n<p>\u098f\u09b8\u0987\u09a1\u09bf\u09b0 \u099c\u09a8\u09cd\u09af \u09b8\u09be\u09a7\u09be\u09b0\u09a3 \u09b8\u09bf\u09a8\u099f\u09cd\u09af\u09be\u0995\u09cd\u09b8 \u098f\u09b0\u0995\u09ae,<\/p>\n<hr \/>\n<pre>\/pattern\/action<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u098f\u0996\u09be\u09a8\u09c7\u09b0 \u09b8\u09cd\u09b2\u09cd\u09af\u09be\u09b8 \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0\u0997\u09c1\u09b2\u09cb \u09a1\u09bf\u09b2\u09bf\u09ae\u09bf\u099f\u09be\u09b0 \u09b9\u09bf\u09b8\u09c7\u09ac\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 \u09b9\u09df\u0964<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"15%\"><strong>\u09b0\u09c7\u099e\u09cd\u099c <\/strong><\/td>\n<td width=\"85%\"><strong>\u09ac\u09bf\u09ac\u09b0\u09a3 <\/strong><\/td>\n<\/tr>\n<tr>\n<td>p<\/td>\n<td>\u09b2\u09be\u0987\u09a8 \u09aa\u09cd\u09b0\u09bf\u09a8\u09cd\u099f \u0995\u09b0\u09c7<\/td>\n<\/tr>\n<tr>\n<td>d<\/td>\n<td>\u09b2\u09be\u0987\u09a8 \u09a1\u09bf\u09b2\u09bf\u099f \u0995\u09b0\u09c7<\/td>\n<\/tr>\n<tr>\n<td>s\/pattern1\/pattern2\/<\/td>\n<td>\u09aa\u09cd\u09af\u09be\u099f\u09be\u09b0\u09cd\u09a8 \u09e7 \u098f\u09b0 \u0998\u099f\u09a8\u09be\u0995\u09c7 \u09aa\u09cd\u09af\u09be\u099f\u09be\u09b0\u09cd\u09a8 \u09e8 \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09aa\u09cd\u09b0\u09a4\u09bf\u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09c7\u0964<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u098f\u09b8\u0987\u09a1\u09bf\u09a4\u09c7 \u09b2\u09be\u0987\u09a8 \u09a1\u09bf\u09b2\u09bf\u099f \u0995\u09b0\u09a4\u09c7<\/h2>\n<p>\u09b2\u09be\u0987\u09a8 \u09a1\u09bf\u09b2\u09bf\u099f \u0995\u09b0\u09a4\u09c7 \u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 \u09b9\u09df,<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed 'd'\r\n$<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>cat command \u099b\u09be\u09dc\u09be \u098f\u0987 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1\u0993 \u0985\u09a8\u09c1\u09b0\u09c2\u09aa \u0995\u09be\u099c \u0995\u09b0\u09c7,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ sed -e 'd' \/etc\/passwd\r\n$<\/pre>\n<hr \/>\n<h2>\n\u098f\u09b8\u0987\u09a1\u09bf \u098f\u09a1\u09cd\u09b0\u09c7\u09b8\u09bf\u0982<\/h2>\n<p>\u098f\u09b8\u0987\u09a1\u09bf \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1\u09c7 \u09ac\u09c7\u09b8\u09bf\u0995 \u098f\u09a1\u09cd\u09b0\u09c7\u09b8 \u09af\u09cb\u0997 \u0995\u09b0\u09a4\u09c7 \u09af\u09c7 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09bf,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed '1d' |more\r\ndaemon:x:1:1:daemon:\/usr\/sbin:\/bin\/sh\r\nbin:x:2:2:bin:\/bin:\/bin\/sh\r\nsys:x:3:3:sys:\/dev:\/bin\/sh\r\nsync:x:4:65534:sync:\/bin:\/bin\/sync\r\ngames:x:5:60:games:\/usr\/games:\/bin\/sh\r\nman:x:6:12:man:\/var\/cache\/man:\/bin\/sh\r\nmail:x:8:8:mail:\/var\/mail:\/bin\/sh\r\nnews:x:9:9:news:\/var\/spool\/news:\/bin\/sh\r\nbackup:x:34:34:backup:\/var\/backups:\/bin\/sh\r\n$<\/pre>\n<hr \/>\n<p>\u098f\u09b8\u0987\u09a1\u09bf \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1\u09c7 \u098f\u09a1\u09cd\u09b0\u09c7\u09b8 \u09b0\u09c7\u099e\u09cd\u099c \u09a8\u09bf\u09b0\u09cd\u09a7\u09be\u09b0\u09a3 \u0995\u09b0\u09a4\u09c7 \u0986\u09ae\u09b0\u09be\u00a0 \u09af\u09c7 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09bf \u09a4\u09be \u09b9\u09b2,<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed '1, 5d' |more\r\ngames:x:5:60:games:\/usr\/games:\/bin\/sh\r\nman:x:6:12:man:\/var\/cache\/man:\/bin\/sh\r\nmail:x:8:8:mail:\/var\/mail:\/bin\/sh\r\nnews:x:9:9:news:\/var\/spool\/news:\/bin\/sh\r\nbackup:x:34:34:backup:\/var\/backups:\/bin\/sh\r\n$<\/pre>\n<hr \/>\n<p>\u0989\u09aa\u09b0\u09c7\u09b0 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u098f\u0995 \u09a5\u09c7\u0995\u09c7 \u09aa\u09be\u0981\u099a \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u09aa\u09b0\u09cd\u09af\u09a8\u09cd\u09a4 \u09b2\u09be\u0987\u09a8 \u09a1\u09bf\u09b2\u09bf\u099f \u0995\u09b0\u09a4\u09c7 \u09ab\u09b2\u09aa\u09cd\u09b0\u09b8\u09c2 \u09b9\u09ac\u09c7\u0964<\/p>\n<p>&nbsp;<\/p>\n<p>\u0986\u09b0\u0993 \u0995\u09bf\u099b\u09c1 \u098f\u09a1\u09cd\u09b0\u09c7\u09b8 \u09b0\u09c7\u099e\u09cd\u099c\u09c7\u09b0 \u0989\u09a6\u09be\u09b9\u09b0\u09a3,<\/p>\n<table width=\"15%\">\n<tbody>\n<tr>\n<td width=\"96%\">\u09b0\u09c7\u099e\u09cd\u099c<\/td>\n<\/tr>\n<tr>\n<td>&#8216;4,10d&#8217;<\/td>\n<\/tr>\n<tr>\n<td>&#8216;10,4d&#8217;<\/td>\n<\/tr>\n<tr>\n<td>&#8216;4,+5d&#8217;<\/td>\n<\/tr>\n<tr>\n<td>&#8216;2,5!d&#8217;<\/td>\n<\/tr>\n<tr>\n<td>&#8216;1~3d&#8217;<\/td>\n<\/tr>\n<tr>\n<td>&#8216;2~2d&#8217;<\/td>\n<\/tr>\n<tr>\n<td>&#8216;4,10p&#8217;<\/td>\n<\/tr>\n<tr>\n<td>&#8216;4,d&#8217;<\/td>\n<\/tr>\n<tr>\n<td>&#8216;,10d&#8217;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>\u09ae\u09a8\u09c7 \u09b0\u09be\u0996\u09be \u09a6\u09b0\u0995\u09be\u09b0, p \u098f\u0995\u09b6\u09a8 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0\u09c7\u09b0 \u09b8\u09ae\u09df \u09aa\u09c1\u09a8\u09b0\u09be\u09ac\u09c3\u09a4\u09cd\u09a4\u09bf \u098f\u09dc\u09be\u09a4\u09c7 -n \u0985\u09aa\u09b6\u09a8 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u0989\u099a\u09bf\u09ce,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed -n '1,3p'<\/pre>\n<hr \/>\n<p>\u098f\u0987 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1\u0995\u09c7 -n \u099b\u09be\u09dc\u09be \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09b2\u09c7 \u09af\u09be \u09aa\u09be\u099a\u09cd\u099b\u09bf,<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed '1,3p'<\/pre>\n<hr \/>\n<h2>\n\u09b8\u09be\u09ac\u09b8\u09cd\u099f\u09bf\u099f\u09bf\u0989\u09b6\u09a8 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1<\/h2>\n<p>\u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 root \u0995\u09c7 amrood \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09aa\u09cd\u09b0\u09a4\u09bf\u09b8\u09cd\u09a5\u09be\u09aa\u09bf\u09a4 \u0995\u09b0\u09a4\u09c7 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed 's\/root\/amrood\/'\r\namrood:x:0:0:root user:\/root:\/bin\/sh\r\ndaemon:x:1:1:daemon:\/usr\/sbin:\/bin\/sh\r\n..........................<\/pre>\n<hr \/>\n<p>\u098f\u09b8\u0987\u09a1\u09bf\u0995\u09c7 \u0997\u09cd\u09b2\u09cb\u09ac\u09be\u09b2 \u09b8\u09be\u09ac\u09b8\u09cd\u099f\u09bf\u099f\u09bf\u0989\u09b6\u09a8\u09c7\u09b0 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6 \u09a6\u09bf\u09a4\u09c7 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1\u09c7\u09b0 \u09b6\u09c7\u09b7\u09c7 g \u09b2\u09be\u0997\u09be\u09a4\u09c7 \u09b9\u09df,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed 's\/root\/amrood\/g'\r\namrood:x:0:0:amrood user:\/amrood:\/bin\/sh\r\ndaemon:x:1:1:daemon:\/usr\/sbin:\/bin\/sh\r\nbin:x:2:2:bin:\/bin:\/bin\/sh\r\nsys:x:3:3:sys:\/dev:\/bin\/sh<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u09b8\u09be\u09ac\u09b8\u09cd\u099f\u09bf\u099f\u09bf\u0989\u09b6\u09a8 \u09ab\u09cd\u09b2\u09cd\u09af\u09be\u0997<\/h2>\n<p>\u0985\u09a8\u09c7\u0995\u0997\u09c1\u09b2\u09cb \u09b8\u09be\u09ac\u09b8\u09cd\u099f\u09bf\u099f\u09bf\u0989\u09b6\u09a8 \u09ab\u09cd\u09b2\u09cd\u09af\u09be\u0997 \u0986\u099b\u09c7 \u09af\u09be\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u098f\u0995\u0987 \u09b8\u09ae\u09df\u09c7 \u098f\u0995\u09be\u09a7\u09bf\u0995\u0995\u09c7 \u09b8\u09cd\u09aa\u09c7\u09b8\u09bf\u09ab\u09be\u0987 \u0995\u09b0\u09c7 \u09a6\u09bf\u09a4\u09c7 \u09aa\u09be\u09b0\u09bf \u0986\u09ae\u09b0\u09be,<\/p>\n<p>&nbsp;<\/p>\n<table width=\"20%\">\n<tbody>\n<tr>\n<td width=\"97%\">\u09ab\u09cd\u09b2\u09cd\u09af\u09be\u0997<\/td>\n<\/tr>\n<tr>\n<td>g<\/td>\n<\/tr>\n<tr>\n<td>NUMBER<\/td>\n<\/tr>\n<tr>\n<td>p<\/td>\n<\/tr>\n<tr>\n<td>w FILENAME<\/td>\n<\/tr>\n<tr>\n<td>I or i<\/td>\n<\/tr>\n<tr>\n<td>M or m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2>\n\u0985\u09b2\u099f\u09be\u09b0\u09a8\u09c7\u099f\u09bf\u09ad \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09b8\u09c7\u09aa\u09be\u09b0\u09c7\u099f\u09b0 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be<\/h2>\n<p>s \u098f\u09b0 \u09aa\u09dc\u09c7 \u0995\u09be\u0999\u09cd\u0996\u09bf\u09a4 \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09c7 \u09ac\u09bf\u09ad\u09bf\u09a8\u09cd\u09a8 \u09b8\u09c7\u09aa\u09be\u09b0\u09c7\u099f\u09b0 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09af\u09be\u09df\u0964<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed 's:\/root:\/amrood:g'\r\namrood:x:0:0:amrood user:\/amrood:\/bin\/sh\r\ndaemon:x:1:1:daemon:\/usr\/sbin:\/bin\/sh<\/pre>\n<hr \/>\n<h2>\n\u098f\u09ae\u09cd\u09aa\u099f\u09bf \u09b8\u09cd\u09aa\u09c7\u09b8 \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09b0\u09bf\u09aa\u09cd\u09b2\u09c7\u09b8 \u0995\u09b0\u09be<\/h2>\n<p>\/etc\/passwd \u09ab\u09be\u0987\u09b2 \u09a5\u09c7\u0995\u09c7 \u09b0\u09c1\u099f \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09a1\u09bf\u09b2\u09bf\u099f \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u098f\u09ae\u09cd\u09aa\u099f\u09bf \u09b8\u09be\u09ac\u09b8\u09cd\u099f\u09bf\u099f\u09bf\u0989\u09b6\u09a8 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09bf,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed 's\/root\/\/g'\r\n:x:0:0::\/:\/bin\/sh\r\ndaemon:x:1:1:daemon:\/usr\/sbin:\/bin\/sh<\/pre>\n<hr \/>\n<h2>\n\u098f\u09a1\u09cd\u09b0\u09c7\u09b8 \u09b8\u09be\u09ac\u09b8\u09cd\u099f\u09bf\u099f\u09bf\u0989\u09b6\u09a8<\/h2>\n<p>\u0995\u09c7\u09ac\u09b2 \u09a6\u09b6\u09ae \u09b2\u09be\u0987\u09a8\u09c7\u09b0 string sh\u0995\u09c7 string quiet \u09a6\u09cd\u09ac\u09be\u09b0\u09be\u00a0 \u09b8\u09be\u09ac\u09b8\u09cd\u099f\u09bf\u099f\u09bf\u0989\u099f \u0995\u09b0\u09a4\u09c7,<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed '10s\/sh\/quiet\/g'\r\nroot:x:0:0:root user:\/root:\/bin\/sh\r\ndaemon:x:1:1:daemon:\/usr\/sbin:\/bin\/sh\r\nbin:x:2:2:bin:\/bin:\/bin\/sh\r\nsys:x:3:3:sys:\/dev:\/bin\/sh\r\nsync:x:4:65534:sync:\/bin:\/bin\/sync\r\ngames:x:5:60:games:\/usr\/games:\/bin\/sh\r\nman:x:6:12:man:\/var\/cache\/man:\/bin\/sh\r\nmail:x:8:8:mail:\/var\/mail:\/bin\/sh\r\nnews:x:9:9:news:\/var\/spool\/news:\/bin\/sh\r\nbackup:x:34:34:backup:\/var\/backups:\/bin\/quiet<\/pre>\n<hr \/>\n<p>\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7, \u098f\u09a1\u09cd\u09b0\u09c7\u09b8 \u09b0\u09c7\u099e\u09cd\u099c \u09b8\u09be\u09ac\u09b8\u09cd\u099f\u09bf\u099f\u09bf\u0989\u09b6\u09a8 \u0995\u09b0\u09a4\u09c7,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ cat \/etc\/passwd | sed '1,5s\/sh\/quiet\/g'\r\nroot:x:0:0:root user:\/root:\/bin\/quiet\r\ndaemon:x:1:1:daemon:\/usr\/sbin:\/bin\/quiet\r\nbin:x:2:2:bin:\/bin:\/bin\/quiet\r\nsys:x:3:3:sys:\/dev:\/bin\/quiet\r\nsync:x:4:65534:sync:\/bin:\/bin\/sync\r\ngames:x:5:60:games:\/usr\/games:\/bin\/sh\r\nman:x:6:12:man:\/var\/cache\/man:\/bin\/sh\r\nmail:x:8:8:mail:\/var\/mail:\/bin\/sh\r\nnews:x:9:9:news:\/var\/spool\/news:\/bin\/sh\r\nbackup:x:34:34:backup:\/var\/backups:\/bin\/sh<\/pre>\n<hr \/>\n<h2>\n\u09ae\u09cd\u09af\u09be\u099a\u09bf\u0982 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1<\/h2>\n<p>-n \u0985\u09aa\u09b6\u09a8\u09c7\u09b0 \u09b8\u09be\u09a5\u09c7 p \u0985\u09aa\u09b6\u09a8 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09c7 \u09ae\u09cd\u09af\u09be\u099a\u09bf\u0982 \u09b2\u09be\u0987\u09a8 \u09aa\u09cd\u09b0\u09bf\u09a8\u09cd\u099f \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09bf,<\/p>\n<hr \/>\n<pre>$ cat testing | sed -n '\/root\/p'\r\nroot:x:0:0:root user:\/root:\/bin\/sh\r\n[root@ip-72-167-112-17 amrood]# vi testing\r\nroot:x:0:0:root user:\/root:\/bin\/sh\r\ndaemon:x:1:1:daemon:\/usr\/sbin:\/bin\/sh\r\nbin:x:2:2:bin:\/bin:\/bin\/sh\r\nsys:x:3:3:sys:\/dev:\/bin\/sh\r\nsync:x:4:65534:sync:\/bin:\/bin\/sync\r\ngames:x:5:60:games:\/usr\/games:\/bin\/sh\r\nman:x:6:12:man:\/var\/cache\/man:\/bin\/sh\r\nmail:x:8:8:mail:\/var\/mail:\/bin\/sh\r\nnews:x:9:9:news:\/var\/spool\/news:\/bin\/sh\r\nbackup:x:34:34:backup:\/var\/backups:\/bin\/sh<\/pre>\n<hr \/>\n<h2>\n\u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be<\/h2>\n<p>daemon \u09a6\u09bf\u09df\u09c7 \u0995\u09b0\u09be \u09b2\u09be\u0987\u09a8 \u0996\u09c1\u0981\u099c\u09c7 \u09ac\u09c7\u09b0 \u0995\u09b0\u09c7 \u09a1\u09bf\u09b2\u09bf\u099f \u0995\u09b0\u09a4\u09c7,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ cat testing | sed '\/^daemon\/d'\r\nroot:x:0:0:root user:\/root:\/bin\/sh\r\nbin:x:2:2:bin:\/bin:\/bin\/sh\r\nsys:x:3:3:sys:\/dev:\/bin\/sh\r\nsync:x:4:65534:sync:\/bin:\/bin\/sync\r\ngames:x:5:60:games:\/usr\/games:\/bin\/sh\r\nman:x:6:12:man:\/var\/cache\/man:\/bin\/sh\r\nmail:x:8:8:mail:\/var\/mail:\/bin\/sh\r\nnews:x:9:9:news:\/var\/spool\/news:\/bin\/sh\r\nbackup:x:34:34:backup:\/var\/backups:\/bin\/sh<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>sh \u09a6\u09bf\u09df\u09c7 \u09b6\u09c7\u09b7 \u098f\u09ae\u09a8 \u09b2\u09be\u0987\u09a8\u09c7\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09a1\u09bf\u09b2\u09bf\u099f\u09c7\u09b0 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ cat testing | sed '\/sh$\/d'\r\nsync:x:4:65534:sync:\/bin:\/bin\/sync<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u0997\u09c1\u09b0\u09c1\u09a4\u09cd\u09ac\u09aa\u09c2\u09b0\u09cd\u09a3 \u098f\u09ae\u09a8 \u099a\u09be\u09b0\u099f\u09bf \u09b8\u09cd\u09aa\u09c7\u09b6\u09be\u09b2 \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0,<\/p>\n<table width=\"20%\">\n<tbody>\n<tr>\n<td width=\"97%\">\u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0<\/td>\n<\/tr>\n<tr>\n<td>^<\/td>\n<\/tr>\n<tr>\n<td>$<\/td>\n<\/tr>\n<tr>\n<td>.<\/td>\n<\/tr>\n<tr>\n<td>*<\/td>\n<\/tr>\n<tr>\n<td>[chars]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2>\u09ae\u09cd\u09af\u09be\u099a\u09bf\u0982 \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0<\/h2>\n<p>\u09ae\u09cd\u09af\u09be\u099a\u09bf\u0982 \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0\u09c7\u09b0 \u0995\u09bf\u099b\u09c1 \u09aa\u09cd\u09af\u09be\u099f\u09be\u09b0\u09cd\u09a8 \u09a6\u09c7\u09df\u09be \u09b9\u09b2,<\/p>\n<table width=\"19%\">\n<tbody>\n<tr>\n<td width=\"97%\">\u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8<\/td>\n<\/tr>\n<tr>\n<td>\/a.c\/<\/td>\n<\/tr>\n<tr>\n<td>\/a*c\/<\/td>\n<\/tr>\n<tr>\n<td>\/[tT]he\/<\/td>\n<\/tr>\n<tr>\n<td>\/^$\/<\/td>\n<\/tr>\n<tr>\n<td>\/^.*$\/<\/td>\n<\/tr>\n<tr>\n<td>\/ *\/<\/td>\n<\/tr>\n<tr>\n<td>\/^$\/<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u09ac\u09b9\u09c1\u09b2 \u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 \u0995\u09bf\u099b\u09c1 \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u09b8\u09c7\u099f \u09a8\u09bf\u099a\u09c7 \u09a6\u09c7\u09df\u09be \u09b9\u09b2,<\/p>\n<table width=\"10%\">\n<tbody>\n<tr>\n<td width=\"95%\">\u09b8\u09c7\u099f<\/td>\n<\/tr>\n<tr>\n<td>[a-z]<\/td>\n<\/tr>\n<tr>\n<td>[A-Z]<\/td>\n<\/tr>\n<tr>\n<td>[a-zA-Z]<\/td>\n<\/tr>\n<tr>\n<td>[0-9]<\/td>\n<\/tr>\n<tr>\n<td>[a-zA-Z0-9]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2>\u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u0995\u09cd\u09b2\u09be\u09b8 \u0995\u09c0\u0993\u09df\u09be\u09b0\u09cd\u09a1<\/h2>\n<p>\/etc\/syslog.conf \u09ab\u09be\u0987\u09b2\u09c7\u09b0 \u0989\u09a6\u09be\u09b9\u09b0\u09a3\u09c7 \u098f\u09b2\u09ab\u09be\u09ac\u09c7\u099f \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u0995\u09cd\u09b2\u09be\u09b8 \u0995\u09c0\u0993\u09df\u09be\u09b0\u09cd\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 \u09b9\u09df\u09c7\u099b\u09c7\u0964<\/p>\n<hr \/>\n<pre>$ cat \/etc\/syslog.conf | sed -n '\/^[[:alpha:]]\/p'\r\nauthpriv.*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/var\/log\/secure\r\nmail.*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 -\/var\/log\/maillog\r\ncron.*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/var\/log\/cron\r\nuucp,news.crit\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/var\/log\/spooler\r\nlocal7.*<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u099c\u09bf\u098f\u09a8\u0987\u0989 \u098f\u09b8\u0987\u09a1\u09bf\u09a4\u09c7 \u09aa\u09be\u0993\u09df\u09be \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u0995\u09cd\u09b2\u09be\u09b8 \u0995\u09c0\u0993\u09df\u09be\u09b0\u09cd\u09a1\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09a4\u09be\u09b2\u09bf\u0995\u09be \u09a8\u09bf\u099a\u09c7 \u09a6\u09c7\u09df\u09be \u09b9\u09b2,<\/p>\n<table width=\"16%\">\n<tbody>\n<tr>\n<td width=\"96%\">\u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u0995\u09cd\u09b2\u09be\u09b8<\/td>\n<\/tr>\n<tr>\n<td>[[:alnum:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:alpha:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:blank:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:cntrl:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:digit:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:graph:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:lower:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:print:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:punct:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:space:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:upper:]]<\/td>\n<\/tr>\n<tr>\n<td>[[:xdigit:]]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2>\n\u098f\u09ae\u09cd\u09aa\u09be\u09b0\u09b8\u09c7\u09a8\u09cd\u09a1 \u09b0\u09c7\u09ab\u09be\u09b0\u09c7\u09a8\u09cd\u09b8\u09bf\u0982<\/h2>\n<p>\u09a7\u09b0\u09be \u09af\u09be\u0995, \u09a8\u09bf\u099a\u09c7\u09b0 \u09ab\u09be\u0987\u09b2\u09c7 \u09ab\u09cb\u09a8\u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u0986\u099b\u09c7, \u098f\u09a4\u09c7 \u098f\u09b0\u09bf\u09df\u09be \u0995\u09cb\u09a1 \u09ac\u09b8\u09be\u09a4\u09c7 \u09b9\u09ac\u09c7,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>5555551212\r\n5555551213\r\n5555551214\r\n6665551215\r\n6665551216\r\n7775551217<\/pre>\n<hr \/>\n<p>\u098f\u09ae\u09cd\u09aa\u09be\u09b0\u09b8\u09c7\u09a8\u09cd\u09a1 \u09b0\u09bf\u09aa\u09cd\u09b2\u09c7\u09b8\u09ae\u09c7\u09a8\u09cd\u099f \u0995\u09cd\u09af\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09be\u09b0 \u09ac\u09b8\u09bf\u09df\u09c7 \u098f\u099f\u09bf \u0995\u09b0\u09a4\u09c7 \u09b9\u09b2\u09c7 \u09af\u09be \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09a4\u09be \u09b9\u09b2,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ sed -e 's\/^[[:digit:]][[:digit:]][[:digit:]]\/(&amp;)\/g' phone.txt\r\n(555)5551212\r\n(555)5551213\r\n(555)5551214\r\n(666)5551215\r\n(666)5551216\r\n(777)5551217<\/pre>\n<hr \/>\n<h2>\n\u09ae\u09be\u09b2\u09cd\u099f\u09bf\u09aa\u09b2 \u098f\u09b8\u0987\u09a1\u09bf \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0<\/h2>\n<p>\u09b8\u09bf\u0999\u09cd\u0997\u09c7\u09b2 \u098f\u09b8\u0987\u09a1\u09bf \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1\u09c7 \u09ae\u09be\u09b2\u09cd\u099f\u09bf\u09aa\u09b2 \u098f\u09b8\u0987\u09a1\u09bf \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09a4\u09c7 \u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09bf,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ sed -e 'command1' -e 'command2' ... -e 'commandN' files<\/pre>\n<hr \/>\n<p>\u098f\u0995\u0987 \u0995\u09cc\u09b6\u09b2 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09c7 \u09ab\u09cb\u09a8 \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u0989\u09a6\u09be\u09b9\u09b0\u09a3\u0995\u09c7 \u0986\u09ae\u09b0\u09be \u098f\u09ad\u09be\u09ac\u09c7 \u09b2\u09bf\u0996\u09a4\u09c7 \u09aa\u09be\u09b0\u09bf,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ sed -e 's\/^[[:digit:]]\\{3\\}\/(&amp;)\/g'\u00a0 \\\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 -e 's\/)[[:digit:]]\\{3\\}\/&amp;-\/g' phone.txt\r\n(555)555-1212\r\n(555)555-1213\r\n(555)555-1214\r\n(666)555-1215\r\n(666)555-1216\r\n(777)555-1217<\/pre>\n<hr \/>\n<h2>\n\u09ac\u09cd\u09af\u09be\u0995 \u09b0\u09c7\u09ab\u09be\u09b0\u09c7\u09a8\u09cd\u09b8<\/h2>\n<p>\u09a7\u09b0\u09be \u09af\u09be\u0995, \u0985\u09a8\u09c1\u09ae\u09bf\u09a4 \u09ab\u09cb\u09a8 \u099f\u09c7\u0995\u09cd\u09b8\u099f\u09c7 \u098f\u0987 \u099f\u09c7\u0995\u09cd\u09b8\u099f\u0997\u09c1\u09b2\u09cb \u0986\u099b\u09c7,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>(555)555-1212\r\n(555)555-1213\r\n(555)555-1214\r\n(666)555-1215\r\n(666)555-1216\r\n(777)555-1217<\/pre>\n<hr \/>\n<p>\u098f\u09a4\u09c7 \u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09aa\u09cd\u09b0\u09df\u09cb\u0997 \u0995\u09b0\u09be \u09af\u09c7\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7,<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<pre>$ cat phone.txt | sed 's\/\\(.*)\\)\\(.*-\\)\\(.*$\\)\/Area \\\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 code: \\1 Second: \\2 Third: \\3\/'\r\nArea code: (555) Second: 555- Third: 1212\r\nArea code: (555) Second: 555- Third: 1213\r\nArea code: (555) Second: 555- Third: 1214\r\nArea code: (666) Second: 555- Third: 1215\r\nArea code: (666) Second: 555- Third: 1216\r\nArea code: (777) Second: 555- Third: 1217<\/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; \u0986\u099c\u0995\u09c7\u09b0 \u099f\u09bf\u0989\u099f\u09cb\u09b0\u09bf\u09df\u09be\u09b2\u09c7 \u0986\u09ae\u09b0\u09be \u09a6\u09c7\u0996\u09ac \u0995\u09c0\u09ad\u09be\u09ac\u09c7 sed \u09a4\u09c7 \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09df\u0964 &nbsp; \u098f\u09b8\u0987\u09a1\u09bf\u0995\u09c7 \u0987\u09a8\u09ad\u09cb\u0995 \u0995\u09b0\u09be \u09aa\u09be\u0987\u09aa\u09c7\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u098f\u09b8\u0987\u09a1\u09bf\u09a4\u09c7 \u09a1\u09be\u099f\u09be \u09aa\u09cd\u09b0\u09c7\u09b0\u09a3 \u0995\u09b0\u09c7 \u098f\u0995\u09c7 \u0987\u09a8\u09ad\u09cb\u0995 \u0995\u09b0\u09be \u09af\u09be\u09df, $ cat \/etc\/passwd | sed Usage: sed [OPTION]&#8230; {script-other-script} [input-file]&#8230; \u00a0 \u00a0 -n, &#8211;quiet, &#8211;silent \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 suppress automatic printing of pattern space \u00a0 -e script, &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"http:\/\/bangla.sitestree.com\/?p=9650\">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":[568,1297,1237,1236,567,1662],"class_list":["post-9650","post","type-post","status-publish","format-standard","hentry","category-----linux-and-unix","tag-expression","tag-sed","tag-unix","tag-1236","tag-567","tag-1662","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":7136,"url":"http:\/\/bangla.sitestree.com\/?p=7136","url_meta":{"origin":9650,"position":0},"title":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 (JavaScript Regular Expressions in Bangla)","author":"Author-Check- Article-or-Video","date":"March 21, 2015","format":false,"excerpt":"\u09a6\u09c0\u09aa\u0999\u09cd\u0995\u09b0 \u09b8\u09be\u09b9\u09be \u00a0 \u0986\u099c\u0995\u09c7 \u0986\u09aa\u09a8\u09be\u09a6\u09c7\u09b0 \u09ae\u09be\u099d\u09c7 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09b7\u09df \u09b6\u09c7\u09df\u09be\u09b0 \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u09b9\u09be\u099c\u09bf\u09b0 \u09b9\u09b2\u09be\u09ae\u0964\u09a4\u09be \u09b9\u09b2 \u0995\u09bf\u09ad\u09be\u09ac\u09c7 Java Script Regular\u00a0 Expressions korte hoi. \u098f\u0995\u099f\u09bf \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 \u09b9\u09b2 \u098f\u0995\u099f\u09bf \u0985\u09a8\u09c1\u09b8\u09a8\u09cd\u09a7\u09be\u09a8 \u09aa\u09cd\u09af\u09be\u099f\u09be\u09b0\u09cd\u09a8 \u09af\u09c7\u099f\u09be \u099f\u09c7\u0995\u09cd\u09b8\u099f \u098f\u09ac\u0982 \u099f\u09c7\u0995\u09cd\u09b8\u099f \u0985\u09aa\u09be\u09b0\u09c7\u09b6\u09a8 \u09aa\u09cd\u09b0\u09a4\u09bf\u09b8\u09cd\u09a4\u09be\u09aa\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u09ac\u09cd\u09af\u09be\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09df \u09ac\u09be \u09ac\u09cd\u09af\u09be\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09af\u09c7\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964 \u098f\u0987 \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 \u09b9\u09b2 \u098f\u0995\u099f\u09bf \u0985\u0995\u09cd\u09b7\u09b0 \u09ac\u09be\u2026","rel":"","context":"In &quot;JavaScript&quot;","block_context":{"text":"JavaScript","link":"http:\/\/bangla.sitestree.com\/?cat=65"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":9667,"url":"http:\/\/bangla.sitestree.com\/?p=9667","url_meta":{"origin":9650,"position":1},"title":"\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 &#8211; \u0995\u09bf\u099b\u09c1 \u09aa\u09cd\u09b0\u09af\u09bc\u09cb\u099c\u09a8\u09c0\u09af\u09bc \u0995\u09ae\u09be\u09a8\u09cd\u09a1 (Unix &#8211; Useful Commands)","author":"Author-Check- Article-or-Video","date":"July 12, 2015","format":false,"excerpt":"\u09b0\u09bf\u09a6\u0993\u09df\u09be\u09a8 \u09ac\u09bf\u09a8 \u09b6\u09be\u09ae\u09c0\u09ae \u00a0 \u098f\u0987 \u0995\u09c1\u0987\u0995 \u0997\u09be\u0987\u09a1\u09c7 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1, \u09b8\u09bf\u09a8\u099f\u09cd\u09af\u09be\u0995\u09cd\u09b8 \u0993 \u09b8\u0982\u0995\u09cd\u09b7\u09bf\u09aa\u09cd\u09a4 \u09ac\u09bf\u09ac\u09b0\u09a3 \u09a4\u09c1\u09b2\u09c7 \u09a7\u09b0\u09be \u09b9\u09ac\u09c7,\u098f\u09b0\u099a\u09c7\u09df\u09c7 \u09ac\u09bf\u09b8\u09cd\u09a4\u09be\u09b0\u09bf\u09a4 \u099c\u09be\u09a8\u09a4\u09c7 \u09b9\u09b2\u09c7 \u09af\u09c7 \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09a4\u09be \u09b9\u09b2, $man command \u00a0 \u09af\u09be\u0987 \u09b9\u09cb\u0995, \u098f\u0996\u09be\u09a8\u09c7 \u0995\u09c1\u0987\u0995 \u0997\u09be\u0987\u09a1\u099f\u09bf \u09a6\u09c7\u09df\u09be \u09b9\u09b2\u0964 \u09ab\u09be\u0987\u09b2 \u098f\u09ac\u0982 \u09a1\u09bf\u09b0\u09c7\u0995\u09cd\u099f\u09b0\u09bf\u09b0 \u099c\u09a8\u09cd\u09af \u09a1\u09bf\u09b0\u09c7\u0995\u09cd\u099f\u09b0\u09bf \u09a4\u09c8\u09b0\u09bf \u0993 \u09ab\u09be\u0987\u09b2 \u09a8\u09bf\u09df\u09a8\u09cd\u09a4\u09cd\u09b0\u09a3 \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u09af\u09c7\u09b8\u09ac \u0995\u09ae\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\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":9615,"url":"http:\/\/bangla.sitestree.com\/?p=9615","url_meta":{"origin":9650,"position":2},"title":"\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8\u0983 \u09b8\u09c7\u09b2 \u0995\u09bf? 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