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Top Forums Shell Programming and Scripting How to tail -f real time file. Post 302566136 by ooilinlove on Wednesday 19th of October 2011 02:34:41 PM
Old 10-19-2011
Computer How to tail -f real time file.

How to tail -f real time file.

I want to tail file created last time.
The server is gen new file Always.


.

An example file.
Code:
-rw-r--r--  1 shinnie tiituck 251M Oct 18 05:39 20111018_00.log
-rw-r--r--  1 shinnie tiituck 251M Oct 18 11:18 20111018_01.log
-rw-r--r--  1 shinnie tiituck 250M Oct 18 16:56 20111018_02.log
-rw-r--r--  1 shinnie tiituck 251M Oct 18 22:34 20111018_03.log
-rw-r--r--  1 shinnie tiituck  64M Oct 18 23:59 20111018_04.log
-rw-r--r--  1 shinnie tiituck 251M Oct 19 05:38 20111019_00.log
-rw-r--r--  1 shinnie tiituck 251M Oct 19 11:17 20111019_01.log
-rw-r--r--  1 shinnie tiituck 251M Oct 19 16:48 20111019_02.log
-rw-r--r--  1 shinnie tiituck 251M Oct 19 22:25 20111019_03.log
-rw-r--r--  1 shinnie tiituck  70M Oct 19 23:59 20111019_04.log

I can use this command it.
Code:
tail -f 201110??_??.log |grep "same key word"

 

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MTAIL(1)							   User Commands							  MTAIL(1)

NAME
mtail - tail variant designed for web developers monitoring logfiles SYNOPSIS
mtail [options] <file>... DESCRIPTION
MonkeyTail allows a user to tail multiple files on both local and remote hosts and clearly marks inactivity by putting 5 newlines in the output whenever a pause in output over 3 seconds is detected. MonkeyTail is implemented a fairly simple wrapper script around standard tail, ssh, and sudo. OPTIONS
-q Quiet mode --quiet " " -n Output the last N lines of each file before tailing (defaults to 0) <file>... Files to tail. These can specified in the following ways: @<groupname> - expands the group (from .mtailrc) to a list of files to tail <filename> - tails a local file. +<filename> - attempts to sudo and tail a local file (will prompt for pwd if required). <remotehost>:<filename> - attempts to invoke tail via ssh on a remote host. +<remotehost>:<filename> - attempts to invoke sudo tail via ssh on a remote host (will prompt for pwd if required). SEE ALSO
mtailrc(5), tail(1) AUTHOR
Martyn Smith <martyn@dollyfish.net.nz> mtail May 2008 MTAIL(1)
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