You could read the log in real time with tail -f if that helps. Beyond this, you may need to keep and old version and compare them. Using diff can be awkward because it adds editing messages if you are to shovel the output into ed so perhaps you would be better to count the lines in your saved version and then get extra lines from the current file, something like:-
I've added the temporary log file so that messages can still be added to the main logfile as you are working on it without it skewing the output, so it givers you a fixed reference point.
I know that Unix is different from windows in that it needs more manual configuring but how do I get Solaris 8 (Intel version) to recognize my floppy drive and cd-rom??
I mean does it automatically detect the drives at startup and I have to mount them or do I have to create the drives somehow and... (1 Reply)
Hello all,
first of all, I apologise if I may ask stupid or obvious questions, but I'm new to UNIX and I think I need a little bit of help before I start gearing up :)
Anyway, I have installed a Solaris 8 on a Sun machine, and it has 2 physical disks in it. However, it seems that it is only... (7 Replies)
Hi. You may know how to detect when a interruption succeeded programming in C. Just like receiving a signal without blocking. Knowing when it was a keystroke (IRQ 2), or a mouse movement (12), or a disk access, etc. and getting actually for example the letter typed.
Thanks a lot. (7 Replies)
Hello,
I'd like to handle incoming (uploaded) files from a shell script, ideally without busy polling / waiting (e.g. running a cron task every 15'). Is there a command that would just sleep until a new entry has been created in a directory, allowing scripts such as the following:
while... (9 Replies)
Hi All ,
I need a script to find errors in a particular and in a particular path
Actually in my logs i`ve so many kinds of errors(i can even say as 100 types also).if i run the script i need to know the error (some errors can aviod )
so finally the script o/p should be a numeric... (3 Replies)
Hi,
I will name folders this way : DD-MM-YYYY (07-06-2011 for today).
DATE=`date +%d-%m-%Y`
mkdir $DATE
They will contain a backup of the day.
I want, in my backup script, add a command that will automatically delete folders that are a week old (in this case, when performing the backup of... (7 Replies)
How can view log messages between two time frame from /var/log/message or any type of log files.
when logfiles are very big and especially many messages with in few minutes, I would like to display log messages between 5 minute interval.
Could you pls give me the command? (1 Reply)
Hello world,
One of the servers, a Fedora one,rebooted today (Luckily, a testbox).
I tried to get the reason the server rebooted. After going through the messages, I think that the log entries just before and after reboot are missing.
Please below: (****** is the server name, for privacy... (0 Replies)
is there a way to efficiently monitor logfiles that do not have a date or time format? i have several logs on several different servers that need to be monitored. but i realized writing a script for this would be very complex and time consuming giving the variety of things i need to check for i.e.... (2 Replies)
Redirecting log files to null writing junk into log files.
i have log files which created from below command
exec <processname> >$logfile
but when it reaches some size i am redirecting to null while process is running like
>$logfile
manually but after that it writes some junk into... (7 Replies)
Discussion started by: greenworld123
7 Replies
LEARN ABOUT LINUX
logsave
LOGSAVE(8) System Manager's Manual LOGSAVE(8)NAME
logsave - save the output of a command in a logfile
SYNOPSIS
logsave [ -asv ] logfile cmd_prog [ ... ]
DESCRIPTION
The logsave program will execute cmd_prog with the specified argument(s), and save a copy of its output to logfile. If the containing
directory for logfile does not exist, logsave will accumulate the output in memory until it can be written out. A copy of the output will
also be written to standard output.
If cmd_prog is a single hyphen ('-'), then instead of executing a program, logsave will take its input from standard input and save it in
logfile
logsave is useful for saving the output of initial boot scripts until the /var partition is mounted, so the output can be written to
/var/log.
OPTIONS -a This option will cause the output to be appended to logfile, instead of replacing its current contents.
-s This option will cause logsave to skip writing to the log file text which is bracketed with a control-A (ASCII 001 or Start of
Header) and control-B (ASCII 002 or Start of Text). This allows progress bar information to be visible to the user on the console,
while not being written to the log file.
-v This option will make logsave to be more verbose in its output to the user.
AUTHOR
Theodore Ts'o (tytso@mit.edu)
SEE ALSO fsck(8)E2fsprogs version 1.41.14 December 2010 LOGSAVE(8)