Sponsored Content
Top Forums Shell Programming and Scripting How to process only new line of tail -f command from live log file? Post 302864933 by ketanraut on Thursday 17th of October 2013 11:02:30 AM
Old 10-17-2013
Quote:
Originally Posted by CarloM
Try tail -n0 -F /logs/COMMON-ERROR.log |....
tail -n0 -F giving same output after reciving new file in log file .....Smilie
 

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
set_color(1)							       fish							      set_color(1)

NAME
set_color - set_color - set the terminal color set_color - set the terminal color Synopsis set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR] Description Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple, cyan, white and normal. o -b, --background Set the background color o -c, --print-colors Prints a list of all valid color names o -h, --help Display help message and exit o -o, --bold Set bold or extra bright mode o -u, --underline Set underlined mode o -v, --version Display version and exit Calling set_color normal will set the terminal color to whatever is the default color of the terminal. Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey font color, while set_color --bold white will result in a white font color. Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator. set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of ncurses and recompile fish against it in order to fix this issue. Version 1.23.1 Sun Jan 8 2012 set_color(1)
All times are GMT -4. The time now is 06:04 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy