11-28-2017
WHAT is the garbage? What is correct after that?
If I get you correctly, the truncation works correctly, and the old log file contents is lost.
Does the process keep the old file open? Check with e.g. lsof. Try sth. like echo "Marker 1" > $logfile.
This User Gave Thanks to RudiC For This Post:
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
If I wanted to redirect output to multiple log files, what would be the best way to do that?
echo "Unix is awesome" >>unixgod.log >>unixgod.log (3 Replies)
Discussion started by: darthur
3 Replies
2. UNIX for Dummies Questions & Answers
Solaris v5.6
What log files should be checked out as part of your sys admin daily routine?
I've printed out my syslog.conf file, and looked in /var/log and found authlog, syslog, and POPlog. I know of /var/adm/messages.
What others should I be looking for?
I know of the "find" command. I... (8 Replies)
Discussion started by: Westy564
8 Replies
3. UNIX for Dummies Questions & Answers
Hello,
I have a set of data (comma seperated) that I want to save to multiple files according to one of the fields in the data set.
I can easily do this with the following script:
BEGIN { FS = OFS = ","}
NF {print $0 >> ($2 "" ".csv")}
It works perfectly on a set of dummy data I have set... (8 Replies)
Discussion started by: pfft
8 Replies
4. Shell Programming and Scripting
Hey Guys,
I was wondering if someone would give me a hand with an issue I'm having, let me explain the situation:
I have a file that is constantly being written to and read from with updated lines:
# cat activity.file
activity1
activity2
activity3
activity4
activity5
This file... (2 Replies)
Discussion started by: bashshadow1979
2 Replies
5. Shell Programming and Scripting
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)
Discussion started by: johnveslin
1 Replies
6. Shell Programming and Scripting
we r to develope a project which involves automatic encryption of all the text files user was working upon during logg off
and to decrypt them during log on
this is to be done by writing a shell script
can anyone help (2 Replies)
Discussion started by: vyom
2 Replies
7. Shell Programming and Scripting
To delete log files content older than 30 days and append the lastest date log file date in the respective logs
I want to write a shell script that deletes all log files content older than 30 days and append the lastest log file date in the respective logs
This is my script
cd... (2 Replies)
Discussion started by: sreekumarhari
2 Replies
8. Shell Programming and Scripting
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)
Discussion started by: SkySmart
2 Replies
9. Shell Programming and Scripting
Hi Guys,
I am using set -x in my script to track the flow of the script.
But if i want to write the output of the set -x into a log file, how do i do it?
Thanks,
Ajay (3 Replies)
Discussion started by: Ajay Venkatesan
3 Replies
10. Shell Programming and Scripting
Hello Everyone,
I want to delete the image files from a directory, which are not listed in a TEXT file.
The directory contains large number of image files (in millions) required / not required. I want to delete the image files which are "not required".
I have generated a Text file having... (3 Replies)
Discussion started by: Praveen Pandit
3 Replies
LEARN ABOUT XFREE86
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 1.44.1 March 2018 LOGSAVE(8)