Sponsored Content
Top Forums Shell Programming and Scripting How to process only new line of tail -f command from live log file? Post 302864943 by CarloM on Thursday 17th of October 2013 11:09:17 AM
Old 10-17-2013
Does it work with --follow=name rather than -F?
 

10 More Discussions You Might Find Interesting

1. Solaris

Tail command in one line

HI i have to copy the last 5000 lines form a log file and copy the same in the same file .overwriting the same log file. ex: tail -5000 testfile1 > testfile2 cat testfile2 mv tesftfile2 testfile1 will produce the correct result.but i want to have this done in one line???? (4 Replies)
Discussion started by: saurabh84g
4 Replies

2. Shell Programming and Scripting

Tail 86000 lines from 1.2 million line file?

I have a log file that is about 1.2 million lines long and about 300MB. we need a way to clean up this file and only keep the last few thousand lines. if i use tail command we run our of memory as the file is too big. I do have a key word to match on. example, we want to keep every line... (8 Replies)
Discussion started by: robsonde
8 Replies

3. Shell Programming and Scripting

How to perform action on newest line in log using tail?

I don't quite know what I'm doing, so this simple script is proving a challenge. Here is some pseudo code that doesn't work yet: if tail -1 "WORKING.txt" >/dev/null | egrep "^NMBR=*" > /dev/null then curl -k 'http://www.myserver.com/log.cgi?input=$?' echo "hi there" fi Purpose:... (3 Replies)
Discussion started by: dihewidd
3 Replies

4. Shell Programming and Scripting

Display Specific line number using tail command

Hi , 1)i want to display specific line number using tail command. e.g. display 10 line from end. Please help... 2)Want to display line 10 to 15 (from end)using tail command) (2 Replies)
Discussion started by: vivek1489
2 Replies

5. Shell Programming and Scripting

How to process log file line by line?

Greetings, I'm new to this forum, also new to shell script I have done some simple shell script before, like backup linux machine using rsync and crontab, but now I need to do some log analyzing, which is beyond my ability... so I'm going to seek for help in this forum, hope someone could give... (5 Replies)
Discussion started by: lunaticdawn
5 Replies

6. Shell Programming and Scripting

How to use command tail -f & show line number.

Hello Guys, I have created function which is as follow: tail -f filename |grep "Key word" output from this command 19-11-2011 21:09:15,234 - INFO Numbement - error number:result = :11 19-11-2011 21:09:15,286 - INFO Numbement - error number:result = :11 19-11-2011 21:09:15,523 - INFO... (5 Replies)
Discussion started by: ooilinlove
5 Replies

7. Shell Programming and Scripting

Reading line by line from live log file using while loop and considering only those lines start from

Hi, I want to read a live log file line by line and considering those line which start from time stamp; Below code I am using, which read line but throws an exception when comparing line that does not contain error code tail -F /logs/COMMON-ERROR.log | while read myline; do... (2 Replies)
Discussion started by: ketanraut
2 Replies

8. Shell Programming and Scripting

Linux backup command line or live cd?, what do you use?

Linux backup command line or live CD?, what do you use? (4 Replies)
Discussion started by: kaja
4 Replies

9. UNIX for Advanced & Expert Users

Alternative to tail -n -0 -F for monitoring live log file

Hello, I have been working on script which need to generate an alert based upon live logs. If string is found then an alert mail must triggered. tail -n -0 -F works fine to redirect the each latest line from live logs file to grep a pattern for matching but it seems to be not working on... (7 Replies)
Discussion started by: ketanraut
7 Replies

10. Homework & Coursework Questions

How to display certain line of file only using head or tail in 1 command?

First month learning about the Linux terminal and it has been a challenge yet fun so far. We're learning by using a gameshell. I'm trying to display a certain line ( only allowed 1 command ) from a file only using the head or tail. I'm pretty about this answer: head -23 history.txt | tail -1... (1 Reply)
Discussion started by: forzatekk
1 Replies
Jcode::Nihongo(3pm)					User Contributed Perl Documentation				       Jcode::Nihongo(3pm)

I3/4Ao
       Jcode - AEuEU,iE,>>u1/2,1cYIYoYEYe

3uIx
	use Jcode;
	#		 _
	# ,A1/4oxaex<<x.x
	Jcode::_onvert($str_ $ocode, $icode, "z");
	# xax.x xIYaYOY,YSY YE>>O,bxCia
	print Jcode->new($str)->h2z->tr($from, $to)->utf8;

AaIA			  _
       Jcode.pmxIYaYOY,YSY YEAaxEYcYxYi_1/4YAxE1/23/4Iex<<xexIYcYxYii1/4YAxII3/4Eyxo
       YuYYi1/4YEx.xAExxxbx1iLYaYOY,YSY YEAaxEYcYxYii1/4YAxo>>Ex"xDx3xoxE'9|x,xCi"

	 $iso_2022_jp = Jcode->new($str)->h2z->jis;

       x3xAxexexeY"YiY~YoYExCx.xcx|iS

	 $iso_2022_jp = $str;
	 &jcode::convert($iso_2022_jp, 'jis', &jcode::getcode($str), "z");
		_
       YaYOY,YSY YExEAEeA-:-xBxIIuxxcIxIxcxaxEicJcode.pmxIxbxA"getcode()"xE "convert()"xoYuYYi1/4YEx.xAExxxbx1iL

       PerlxIYDi1/4Y,YcYox~5.8.1oE3/4axExeicJcodexIicPerl 5.8oE1BxIE,1/2aAaxEE,>>u1/2,1c
       YIYoYEYeYaY,Yai1/4YexCxcxeEncodexIYeYAYNi1/4xEx.xAEc9|xeEnxxxbx1iL

YaY1/2YAYE							       _
       AEAxE,AuUx.xExx,Axeicx3x3xCuox2xeYaY1/2YAYExIA'xAEJcodeYaYOY,YSY YExoEOx.xbx1iL
		  _
       Y3YoY1YEYeY Yc

       $j = Jcode->new($str [, $_code])
	 $strx<<xeJcodeYaYOY,YSY YE$jxoA,A(R)x.xbx1iLIA1/4"AaxE$icodexoY>>YAYEx.xEx+-xixDic			     _
	 AEbIIY3i1/4YExI1/4<<AEoAaxEE1/2Aexuxixbx1iLIoIN2AC1/2xEE,>>u1/2,1cxExAxxxAExIic21/4xI getcodexo>>23/4Ex.xAEx xAxuxxiL

	 Perl 5.8.1oE1BxCxIic$icodexExIEncodex~Iy2oxCxxe xExoxEY"YoY3i1/4YCYLYoYoI3/4xa>>Ex"xbx1iL

	   $j = Jcode->new($european, 'iso-latin1');
		  _
	 YaYOY,YSY YExoE,>>uIo21/2x1xexEicEUCxEEN'1xuxixcE,>>uIox~EOxexbx1iLxCx1x<<xe "print $j->euc"xEx1xeAaxixexEic"print $j"xExCxxbx1iL

	 YeYOYiYiYoY1AIx.
	   Y1Y<<Yei1/4AIxIAaxixexEicoE21/4xIxex|xEYeYOYiYiYoY1xoAIx>>xbx1iL

	    Jcode->new($str);
			  _
	   x3xixIxUxoxI3/4 x.>>b'OxoAaIox.xbx1iLx1/2xIA_1/2bxEx.xAEic$strxIAIx1/2xIxaxIx~
	   EN'1xuxixbx1iExcxeoOILic$strxIjcodeYaYOY,YSY YExE"tiexuxixe"xIxCx1iEiL

       $j->set($str [, $icode]) 				       _
	 $jxIAEaEoE,>>uIoxE$_trxoY>>YAYEx.xbx1iL.<<xeEOx.JcodeYaYOY,YSY YExo>>Ex|xExxE
	 EOIoxCx1iEYaYOY,YSY YExoA,A(R)x1xe>>b'OxEYaYaYexIAaIoxExExexbx1iEiL

	  # mailboxxoSJIS.A1/4oxEEN'1
	  my $jconv = new Jcode;
	  $/ = 00;
	  while(<>){
	      print $jconv->set($_)->mime_decode->sjis;
	  }

       $j->append($str [, $icode]);
	 $jxIAEaEoE,>>uIoxE$strxo2Ax"xbx1iL

       $j = jcode($str [, $icode]);
	 Jcode->new() xIA>>1/2I.AiLoE21/4xIxex|xExCxxbx1i"

	  $sjis = jcode($str)->sjis;

       E,>>uIoxIY"YoY3i1/4YE

       oiEIxEic$j->encodedxEx1xex3xExCencodedxEEN'1xuxixcE,>>uIoxoAEAxbx1iL

       $sjis = $j->sjis
       $euc = $j->euc
       $jis = $j->jis
       $sjis = $j->sjis
       $ucs2 = $j->ucs2
       $utf8 = $j->utf8
	 1/4<<IAxCx.xcx|iL WYCIWYG = What you code is what you get :)

       $iso_2022_jp = $j->iso_2022_jp		     _
	 "$j->h2z->jis"xEAE+-x,xCx1iL E3/43NY<<YExI9| A(C)AaxEA'3NxEEN'1xuxixbx1iL

	 Perl 5.8.1oE1BxCxIicEncodex~YuYYi1/4YEx1xexExoxEY"YoY3i1/4YCYLYoYoI3/4xE Y"YxYeYcY1xCxaIoINxCxxbx1iLIax"xDiS

	   $european = $j->iso_latin1; # YaY1/2YAYEI3/4INxE'-'xI'_'xEAOx'1x"xbx1

	 >>21IiSEncode::Encoderx~x3xixEAE+-x,3/4(R)u>>xo>>ExAxAExxxbx1iL

	 $j->fallback($fallback)
	   Perl 5.8.1oE1BxCxIicJcodexIAEaEoxIE,>>uIoxoUTF-8xCEY>>yx.xbx1iL ->encodingxEYbYAYxxCxxExxE,>>uxI'?'xEAOx'1x"xexixbx1x~ic
	   x3xixIEncodexCxIE,1/2aAEooixCx1iL
						    _
	     my $unistr = "x{262f}"; # +-cIUYbi1/4Y
	     my $j = jcode($unistr);  # $j->euc xI.e2IxI '?' xE
							   _
	   x3xIc9|xeEnxxxIicEncodeAE+-IIicYOY(C)i1/4YeYDYAY xo>>OAex1xex3xExCEN11xCxxbx1iL
	   AIxIEncodexIxaxIxEoi1/2ixCx1iLEOu1xIxcxaic"Jcode::FB_PERLQQ"ic "Jcode::FB_XMLCREF"ic"Jcode::FB_HTMLCREF"x~EncodexIx1/2xixexOxI
	   Y"YxYeYcY1xExExAxAExxxbx1iL

	     print $j->fallback(Jcode::FB_PERLQQ)->euc;   # 'x{262f}'
	     print $j->fallback(Jcode::FB_XMLCREF)->euc;  # '&#x262f;'
	     print $j->fallback(Jcode::FB_HTMLCREF)->euc; # '&#9775;'
									    _
	   YoYii1/4YDYeENco$Jcode::FALLBACKxEYCYOY(C)YeYExIYOY(C)i1/4YeYDYAY x~EY>>y
	   xuxixAExxxbx1xIxCicx3xIAIxoAaAEbx1xex3xExCYai1/4YDi1/4YeYxYExCxxbx1iL
										   _
	     $Jcode::FALLBACK = Jcode::FB_PERLQQ; # YCYOY(C)YeYExIYOY(C)i1/4YeYDYAY Y1Yi1/4YbxoABAe

       [@lines =] $jcode->jfold([$width, $newline_str, $kref])
	 $widthiEYCYOY(C)YeYEiS72iEEexEjcodeE,>>uIoAEaxI1OxoAbxeEOx.xbx1iL
	 $widthxIiEE3/43NiEE,>>uxIcoxCx1iLA'3NE,>>uxI2E,>>uxEx.xAEY<<Y|YoYEx.xbx1iL

	 $newline_striEYCYOY(C)YeYExI"
"iExC>>OAexuxixc2b1OE,>>ux~2Axixexbx1iL AbxeEOxuxixcA'1OxoYeY1YExCEOx.xbx1iL

	 Perl 5.8.1oE1BxI3EOIUxIouco$krefxEEUCxIE,>>uIoxICUIoYeYOYiYiYoY1xo AIx1x3xExCic'EoxAaxE1OAE~9|OAS1/2eIyiExOxe21/4x~xeiExo1Ox"xbx1iL

       $length = $jcode-_jlength();
	 YDYxYEA1xCxIxEx icA'3NE,>>uxaoiE,>>uxEx.xAEcox"xc3/4i1cxIE,>>ucoxoEOx.xbx1iL

       MIME::Base64xo>>Ex|YaY1/2YAYE

       21/4uxIYaY1/2YAYExo>>Ex|xExIicMIME::Base64x~E~IxxCx1iLYxYoY1YEi1/4YexIA+-1/2axE

	  perl -MCPAN -e 'CPAN::Shell->install("MIME::Base64")'

       xEx.xbx1iLxa>>ExxxIPerlx~5.6oE1BxCxcxexExeicMIME::Base64xI YDYoYEYexuxixAExxxexIxCicYxYoY1YEi1/4YexIE~IxxIxcxexbx>>xoiL

       $mime_header = $j->mime_encode([$lf, $bpl])
	 $strxoRFC1522xExcxeMIME-HeaderxEEN'1x.xbx1iL$lfxo>>OAex1xexEic 1OxIAbxeEOx.xE$lfx~>>Exixixbx1iEYCYOY(C)YeYEiS
iEiL
	 $bplxo>>OAex1xexEicAbxeEOx1YDYxYEcoxE$bplx~>>Exixixbx1iEYCYOY(C)YeYEiS76i" x3xIcoAIxI76oE21/4xCxEx+-xixDxExexbx>>xoiEiL

	 Perl 5.8.1oE1BxCxIicoE21/4xIxex|xEx.xAExaMIME HeaderY"YoY3i1/4YEx~xCxxbx1iS

	   $mime_header = $j->MIME_Header;

	 x3xI3/4i1c$mime_headerxIIaxeAIxIMIME-B-encoded UTF-8xExExexbx1iL oiEyic"$j->mime_encode()"xIMIME-B-encoded ISO-2022-JPxoEOx.xbx1iL
	 oC9|axIxUxExoxExIYai1/4Yei1/4xIxExAxexaYuYYi1/4YEx.xAExxxbx1iL

       $j->mime_decode;_
	 JcodeYaYOY,YSY YExIAEaEoE,>>uIoxoMIME-HeaderYCY3i1/4YEx.xbx1iLPerl 5.8.1 oE1BxExeicoE21/4xIxex|xEx.xAEAE+-x,x3xEx~xCxxbx1iS

	   Jcode->new($str, 'MIME-Header');
						_
	 x3xAxexI3/4i1cicISO-2022-JPxAx+-xCxIxEx UTF-8xExExExaAD+-bx.xAExaxeic xuxexEMIME B EncodingxIxBxExexoMIME Q EncodingxExaAD+-bx.xAExxxe
	 xIxCicPerl 5.8.1oE1BxCxcxixDx3xAxexo>>Ex|xUxxCx.xcx|iL

       E3/43N c<<ca A'3N

       $j->h2z([$keep_dakuten])
	 X201Y<<YEiEE3/43NiExoX208Y<<YEiEA'3NiExEEN'1x.xbx1iL $keep_dakutenxEccAIxoY>>YAYEx1xexEicAuAAxox1/2xIxbxbxEx.xbx1
	 (x3xixIxAxbxeiciOY<<iUi<<ixxIiOY~ixxEEN'1xuxixoxEx1/2xIxbxb xExExexExxx|x3xExCx1)

	 $j->nmatchxoAIx,xAEYbYAYAx.xccoxo1/4eAEAxCxxbx1iL

       $j->z2h
	 X208Y<<YEiEA'3NiExoX201Y<<YEiEE3/43NiExEEN'1x.xbx1iL

	 $j->nmatchxoAIx,xAEYbYAYAx.xccoxo1/4eAEAxCxxbx1iL

       Auu~E1/2,1/2Y"YBYaYii1/4Yc

       "->m()"xE"->s()"xo>>Ex|xExIicPerl 5.8.1oE1Bx~ E~IxxCx1iL

       $j->tr($from, $t_, $opt);
	 JcodeYaYOY,YSY YExE"tr/$from/$to/"xoA~INx.xbx1iL$fromxE$toxI EUC-JPxIE,>>uIoxCx1iLPerl 5.8.1oE1BxCxIicflagEOxxIUTF-8E,>>uIo
	 xa1/4ox+-EOx+-xbx1iL

	 $optxoY>>YAYEx1xexEic"tr/$from/$to/$opt"x~A~INxuxixbx1iL$optxI 'c'ic'd'xcxexxxIx1/2xixexIAExB1cxix>>xCxEx+-xixDxExexbx>>xoiL

	 $j->nmatchxoAIx,xAEYbYAYAx.xccoxo1/4eAEAxCxxbx1iL

	 Perl 5.8.1oE1BxCxIictrxI.A1/4oxE,ixexIxcxAxc3/4i1cxE->error_trxoAIx,xAEic $@xo1/4eAEAxCxxbx1iL

	 oE21/4xIYaY1/2YAYExIPerl 5.8.1oE1BxCxIxBIoIN2AC1/2xCx1iL

       $j->s($patter, $replace, $opt);
	 ,Ai1xE"s/$pattern/$replace/$opt"xoA~INx.xbx1iL$optxIAuu~E1/2,1/_YaYxY.YcYoxE
	 AE+-x,xCx1iLAuu~E1/2,1/2xIYaYxY.YcYoxExAxxxAExIperlrexo>>23/4Ex xAxuxxiL
					       _
	 "$j->tr()"ic"$j->s()"xIx1/2xIYaYOY,YSY YE1/4<<cExoEOx1xIxCic oE21/4xIxex|xEAaoixoIc.exCxxbx1iL

	   $j->tr("A-Z", "a-z")->s("foo", "bar");

       [@match = ] $j->m($pattern, $opt);			  _
	 "m/$patter/$opt"xoA~_Nx.xbx1iLx3xIYaY1/2YAYExIiEYaYOY,YSY YExoEOxuxExxiE xIxCic"$j->s()"xIxex|xEYaY1/2YAYExoIc.exCx-
	 xExxx3xExEAioOx.xAEx xAxuxxiL

	 Auu~E1/2,1/2xI.A1/4oxE,ixexIxcxAxc3/4i1cic->error_mic->error_sxoAIx,xAE $@xo1/4eAEAxCxxbx1iL

       YxYoY1YcYoY1ENco
			 _			   _
       xax.J_odeYaYOY,YSY YExIY_YoY1Y_YoY1ENcoxEYcY Y>>Y1x.xcxxxExeicA3/4AUx1/2xixe
       xEYcY Y>>Y1x1xexIxCxIxEx icYcY Y>>Y1YaY1/2YAYExoIoINx.xbx.xcx|iEx3xix3/4OOP xCx1iEiL

       >>21IxbxCxEicJcodexIiEoiEIAaxEEyEixCxcxeiEYIYAY.YaYeYOYiYiYoY1xIAaxixexEic
       CUI_YeYOYiYiYoY1xo>>Ex|x3xExCicY1YOi1/4YExooCA~21/2x.xAExxxbx1iE1/4AoYxIxEx3xiic
       YcY Y>>Y1YaY1/2YAYExo>>Ex|,Axex3xIx3xExoAIxeE~IxxIxcxexbx>>xoi" xax|oiAU xxxxxbx1x~icx3xixIOOPxExIxCx1iEiL

       Perl 5.8.1oE1BxCxIicYIYAY.YaYeYOYiYiYoY1xo>>Ex|xex|xEEN11xuxixbx.xciL x3xixExexeicJcodexI3EAYxIxaxIx1x'x 'EA+-xExExexbx1iL

       $j->r_str
	 EUCE,>>uIoxOxIYeYOYiYiYoY1iL

	 Perl 5.8.1oE1BxCxIUTF-8YOYeYoxII(C)xAxcUTF-8E,>>uIoxOxIYeYOYiYiYoY1xCx1iL

       $j->icode
	 A3/49|axIAaoixExax+-xeAEbIIE,>>uY3i1/4YEiL

       $j->nmatch
	 YbYAYAx.xccoiE$j->trAuxo>>ExAxcxExiEiL

YuYOYei1/4YAYo
       ($code, [$nmatch]) = getcode($str)
	 $strxIE,>>uY3i1/4YExoEOx.xbx1iLEOxeY3i1/4YExIoE21/4xIAIxexCx1iL

	  ascii   Ascii iEAEuEU,iY3i1/4YExo'bxbxExxiE
	  binary  Binary iEYAEYY1YEYOYiYxYexCxIxExxiE
	  euc	  EUC-JP
	  sjis	  SHIFT_JIS
	  jis	  JIS (ISO-2022-JP)
	  ucs2	  UCS2 (Raw Unicode)
	  utf8	  UTF8

	 Y1Y<<Yei1/4Y3YoYAEYY1YExIAaxixexECUIoY3YoYAEYY1YExo>>Ex|xEic2cE,>>uE~xI
	 Y3i1/4YEx~,<<xAx<<xAxcxIx<<xaEOx.xbx1iL3/4axIEyxC1/2OxUxcxex|xEic$strxI$str xCxa11/2xxxbx>>xoiL

	 jcode.pl IoIN1/4OxIEyxOiS x3xI'OcoxIjcode::getcode()xE100%3/4aoI,B'1x~ xcxexbx1iLi1/2i1/2xbxcicxUxU100%i"

	  * IaxeAIx~CUIoxIxExicx1/2xI1/2cEOxIuOxExExexbx1i"
	    jcode::getcode()xI$nmatchxooC1/2exEEOx.xbx1iL

	  * jcode::getcode()xIicEUCE,>>uxESJISE,>>uxIcox~Aux.xxxExic'undef'xo
	    EOx.xbx1iL Jcode::getcode()xIEUCxoEOx.xbx1iLx3xixIJcode.pmxExI
	    Aae'Ox~xExxxcxaxCx1iL

       Jcode::convert($str, [$ocode, $icode, $opt])
	 $strxo$ocodexC>_OAex.xcE,>>uY3i1/4YExEEN'1x.xbx1iL$icodexa>>OAex1xexEic AEbIIE,>>uIoxoget-
	 code()xCYAYSYAY x1xeAaxixexEic$icodexE23/4Aex.xbx1iL 3/4axIEyxC1/2OxUxcxex|xEic$strxI$strxCxa11/2xxxbx>>xoiL

	 jcode.pl IoIN1/4OxIEyxOiS x3xI'OcoxIjcode::convert()xE100%3/4aoI,B'1x~ xcxexbx1ia

YDYo
       Perlx~5.8.1oE1BxI3/4i1cicJcodexIEncodexIYeYAYNi1/4xEx.xAEc9|xeEnxxxbx1iL xAxbxeicJcodexIEncodeAEaxIYDYoxI+-AE9|Axo1/4ox+-xbx1iL

1/4O1/4 							  _
       x3xIYNYAY+-i1/4Y,xIicAEouiicYCY9|YxYox1/2x.xAEY3i1/4YExIAcx xIAAxCic 2IAa IAAu
       <utashiro@iij.ad.jp>>>axIPerl4YeYxYOYeYejcode.plxEEexAxAExxxbx1iL
						    _									   _
       Acoe Ci'o <ohzaki@iod.ricoh.co.jp>>>axIic3<<E xIEo3/4ixE1/2e'uxIAE3~x<<xe Auu~E1/2,1/2xoEaxxcx2xe1/4e1/2ox+-xox.xAEx xixbx.xciL

       makamaka@donzoko.net xI JEncode xExIicJcodexEEncodexoxEx|I>>1cxux>>xixD xxxxx<<AcENAcx-
       xE.1/41/4"xo1/4ox+-xbx.xciLxbxcicEUAEuEU,iYbYEYaYcYexa'oALx.xAE xxxcxAxxbx.xciL

       x1/2x.xAEJcode ML <jcode5@ring.gr.jp>xI3SxuxoiLx3xIEyALxEx.xExIic x3x3xbxC'oA(R)x.xEx<<xAxcx3xExCx.xcx|iL

>>21I
       Encode

       <http://www.iana.org/assignments/character-sets>

Aooi,c
       Copyright 1999-2005 Dan Kogai <dankogai@dan.co.jp>

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.8.8							    2005-02-19						       Jcode::Nihongo(3pm)
All times are GMT -4. The time now is 08:27 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy