It does, I tested it. If it doesn't, -F is broken on your system.
There'd be no point having a 'follow symlinks' option without it, after all... The OS does that perfectly well all by itself.
@ooilinlove - on the assumption that the second to the last log is not being updated any longer as soon as the latest log is started ... test the lines below in the order listed on the command line and see what happens ...
Code:
ln -sf $last_file latest.log # <-- change $last_file to actual file name of 2nd to the last log
tail -F latest.log
ln -sf $latest_file latest.log # <-- change $latest_file to actual file name of latest log; do this
# on a separate terminal window so you see if tail -F is still working
you should not see any movement on the tail -F run after the first symlink and see changes coming through after the second symlink ... if you still do not see anything with tail -F after second the symlink, append a new readable line to the last log (i.e., date >> $last_log) in a separate window and verify that it does not show on the tail -F window ... if the new line does show up, have your sysadmin troubleshoot ... if it does not, post your complete script ...
Is this possible? I am attempting to display a new xterm window and tail -f the log file within that new window. I am currently working on a solaris 8 machine if that has any different meaning than the other platforms. As you can see, I am a newbie to this forum and to UNIX. Any help would be... (2 Replies)
Hi there,
I have a problem here that involves bash script since I was noob in that field. Recently, I have to monitor data involve in logs so I just run command tail -f for the monitoring. The logs was generate every hour so I need to quickly change my logs every time the new hour hits according... (2 Replies)
I've seen several examples of scripts in thise forum about having a script generate a log file. I have a script that is run from cron and that monitors a file system for a specfic filename(s) and then performs some actions on them. Normally I call this script from another script (which the one... (2 Replies)
Hi All..
I have a log file in which all the backup information is stored. Now i have written a script which get the last line in the backup log file..
ssh -l ora${sid} ${primaryhost} "tail -1 /oracle/$ORACLE_SID/sapbackup/back$ORACLE_SID.log"
However i would like to tail the line last... (4 Replies)
Hello all,
I've got what I'm pretty sure is a simple problem, but I just can't seem to work past it. I'm trying to use awk to pretty up a log file, and calculate a percentage.
The log file looks like this:
# tail strtovrUsage
20090531-18:15:45 RSreq - 24, RSsuc - 24, RSrun - 78, RSerr -... (4 Replies)
Hi Friendz,
I have 14 DB load scripts say 1,2,3....14. I want a script to call each script automatically, and after completion of every script, it needs to track the logfile and mail that log file to a group.and again it should run the next script in sequence 1,2,3...14
Please help me,need... (1 Reply)
Unix Gurus,
I have a shell script which has few "echo" statements. I am trying to create a logfile where all the outputs of the echo statement sare stored.
I will have to add this as the final step in the existing script so that everytime the script runs, a logfile is generated with all the... (1 Reply)
Hello,
How to tail -f multi logfile from multi path in 1 shell script.
File & Path
/usr/home/localmode/mode110l/log/logic/number110/digit110_digit110m4_2013050210.txt
/usr/home/localmode/mode103l/log/logic/number103/digit103_digit103m4_2013050210.txt... (4 Replies)
Hi,
I want to read a live log file line by line and considering those line which are newly added to file
Below code I am using, which read line but as soon as it read new line from log file its starts processing from very first line of file.
tail -F /logs/COMMON-ERROR.log | while read... (11 Replies)
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
LEARN ABOUT LINUX
pon
PON(1) Debian PPPD PON(1)NAME
pon, poff, plog - starts up, shuts down or lists the log of PPP connections
SYNOPSIS
pon [ isp-name [ options ] ]
poff [ -r ] [ -d ] [ -c ] [ -a ] [ -h ] [ isp-name ]
plog [ arguments ]
DESCRIPTION
This manual page describes the pon, plog and poff scripts, which allow users to control PPP connections.
pon
pon, invoked without arguments, runs the /etc/ppp/ppp_on_boot file, if it exists and is executable. Otherwise, a PPP connection will be
started using configuration from /etc/ppp/peers/provider. This is the default behaviour unless an isp-name argument is given.
For instance, to use ISP configuration "myisp" run:
pon myisp
pon will then use the options file /etc/ppp/peers/myisp. You can pass additional pppd options after the ISP name, too. pon can be used to
run multiple, simultaneous PPP connections.
pon takes the following command line options:
-q --quick
disconnect when ip-up finishes running. This function is only available to the root user.
poff
poff closes a PPP connection. If more than one PPP connection exists, the one named in the argument to poff will be killed, e.g.
poff myprovider2
will terminate the connection to myprovider2, and leave the PPP connections to e.g. "myprovider1" or "myprovider3" up and running.
poff takes the following command line options:
-r causes the connection to be redialed after it is dropped.
-d toggles the state of pppd's debug option.
-c causes pppd(8) to renegotiate compression.
-a stops all running ppp connections. If the argument isp-name is given it will be ignored.
-h displays help information.
-v prints the version and exits.
If no argument is given, poff will stop or signal pppd if and only if there is exactly one running. If more than one connection is
active, it will exit with an error code of 1.
plog
plog shows you the last few lines of /var/log/ppp.log. If that file doesn't exist, it shows you the last few lines of your /var/log/syslog
file, but excluding the lines not generated by pppd. This script makes use of the tail(1) command, so arguments that can be passed to
tail(1) can also be passed to plog.
Note: the plog script can only be used by root or another system administrator in group "adm", due to security reasons. Also, to have all
pppd-generated information in one logfile, that plog can show, you need the following line in your /etc/syslog.conf file:
local2.* -/var/log/ppp.log
FILES
/etc/ppp/options
PPPd system options file.
/etc/ppp/pap-secrets
System PAP passwords file.
/etc/ppp/chap-secrets
System CHAP passwords file.
/etc/ppp/peers/
Directory holding the peer options files. The default file is called provider.
/etc/chatscripts/provider
The chat script invoked from the default /etc/ppp/peers/provider.
/var/log/ppp.log
The default PPP log file.
AUTHORS
The p-commands were written by Christoph Lameter <clameter@debian.org>. Updated and revised by Philip Hands <phil@hands.com>.
This manual was written by Othmar Pasteka <othmar@tron.at>. Modified by Rob Levin <lilo@openprojects.net>, with some extensions taken from
the old p-commands manual written by John Hasler <jhasler@debian.org>.
SEE ALSO pppd(8), chat(8), tail(1).
Debian Project July 2000 PON(1)