TAILF(1) Linux Programmer's Manual TAILF(1)NAME
tailf - follow the growth of a log file
SYNOPSIS
tailf [OPTION] file
DESCRIPTION
tailf will print out the last 10 lines of a file and then wait for the file to grow. It is similar to tail -f but does not access the file
when it is not growing. This has the side effect of not updating the access time for the file, so a filesystem flush does not occur peri-
odically when no log activity is happening.
tailf is extremely useful for monitoring log files on a laptop when logging is infrequent and the user desires that the hard disk spin down
to conserve battery life.
Mandatory arguments to long options are mandatory for short options too.
-n, --lines=N, -N
output the last N lines, instead of the last 10.
AUTHOR
This program was originally written by Rik Faith (faith@acm.org) and may be freely distributed under the terms of the X11/MIT License.
There is ABSOLUTELY NO WARRANTY for this program.
The latest inotify based implementation was written by Karel Zak (kzak@redhat.com).
SEE ALSO tail(1), less(1)AVAILABILITY
The tailf command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
13 February 2003 TAILF(1)
Check Out this Related Man Page
MOUNTPOINT(1) User Commands MOUNTPOINT(1)NAME
mountpoint - see if a directory is a mountpoint
SYNOPSIS
mountpoint [-q] [-d] directory
mountpoint -x device
DESCRIPTION
mountpoint checks if the directory is mentioned in the /proc/self/mountinfo file.
OPTIONS -h, --help
Print help and exit.
-q, --quiet
Be quiet - don't print anything.
-d, --fs-devno
Print major/minor device number of the filesystem on stdout.
-x, --devno
Print major/minor device number of the blockdevice on stdout.
EXIT STATUS
Zero if the directory is a mountpoint, non-zero if not.
AUTHOR
Karel Zak <kzak@redhat.com>
ENVIRONMENT
LIBMOUNT_DEBUG=0xffff
enables debug output.
NOTES
The util-linux mountpoint implementation was written from scratch for libmount. The original version for sysvinit suite was written by
Miquel van Smoorenburg.
SEE ALSO mount(8)AVAILABILITY
The mountpoint command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux June 2011 MOUNTPOINT(1)
hi guys!
just want to ask if you could help me with the sript i'm working on. i need to automatically generate a summarized report everyday for all transactions the day before and ftp it to another machine. my only problem is that i need to name the file as the date yesterday. for example if i... (12 Replies)
Hello,
I am going to install linux on my new laptop. It is currently using windows, is it possible to remove windows? if it is, how do I do it? :confused: (9 Replies)
Hello. I would be very pleased if sb. help me to solve my problem. I've got a file with many non blank lines and I want to merge all lines into one not destroy the informations on them. I've tryed it with split and paste, tr, sed , but everything I've done has been wrong. I know about crazy... (8 Replies)
I am currently working on code that simulates a file tail algorithm since the only way to retrieve the required information is from within a file, and this information needs to be retrieved in as close to real time as possible when the event enters the file. I cannot use system("tail <options>")... (6 Replies)
Hello all,
Forgive me if this question was asked before, I'm unable to find an answer to it on this forum upon searching "windows unix".
I have Windows XP at home, and I want to practice Unix, I want to re-learn all Unix commands, Shell script programming and the Vi Editor.
I'm looking... (11 Replies)
I have an event log which is a circular file. I would like to be able to see real-time updates of that event log. Kind of the equivalent of a 'tail -f'. But obviously 'tail -f' won't work if my circular file has already cycled over. Any ideas as to how I can do this? Let me know if I am clear.... (10 Replies)
Hi,
Could some please help me in configuring wireles internet on redhat linux installed on my laptop.
When I booted using windows, I saw the following, which I think is the name of my laptop's wireless card:
Intel(R) PRO/Wireless 3945ABG Network Connection
I have run the following steps... (9 Replies)
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)
Hi
I am having hard time getting this right and need some help. I Have several log files, and everyone contains the following 3 lines at the end:
4 ETW000 Disconnected from database.
4 ETW000 End of Transport (0000).
4 ETW000 date&time: 13.01.2011 - 08:03:28
I need to capture the value... (7 Replies)
Hey Folks,
What are the ways we can provide security to kernels.
How can I make my Kernel Unique and not allow anyone to replace my Unique kernel with a standard one.
How can i implement measures to avoid any user to replace or modify GRUB and Kernel...?
Need help on this
Thank you (8 Replies)
Hi I'm a newbie in unix scripting and I'm trying to do a function that do the next:
Run this command: opcdeploy -cmd "utility -xs" -node node.com and store the result in a file.
Get the last ten lines from the stored file and do a search for the number 100, store that search in a variable.
If ... (11 Replies)
Hi All,
I want to check if one my log file is updating properly, how can I achieve it.
The approach I am trying is to get the file size at two different interval and than comparing it eg :
$ ls -ltr | tail -1 | awk '{print $5}'
20480 (7 Replies)
Hi all,
I am sorry if this is a repetitive question and would be happy if I get directed to a source where I can find details about this.
I have a laptop with windows 8, 8 GB RAM and 1 TB hard disk with most of the memory available for use.
I am trying to find a good option to install Linux... (8 Replies)