Home > How To > Linux Truncate Log File

Linux Truncate Log File

Contents

Dynamic SOQL query Why is water-contaminated fuel bad, but water-injection is not? A world with a special political system What type of architecture would an arachnid /crustacean likely to have? Obviously there is some kind of configuration done on the server to prevent accidental overriding of files. How to tell if your flight has an air-bridge or stairs? http://robertwindows.com/how-to/mcelog-linux.html

Here is what I see in the logrotate.conf file of my Debian server: [email protected]:~$ cat /etc/logrotate.conf # see "man logrotate" for details # rotate log files weekly weekly # keep 4 Sometime people make the mistake of using rm on the log then recreating the filename, if another process has the file open then you don't get the space back until that Permisions and configurations were OK, but FLUSH LOGS returned ERROR 1105 (HY000): Unknown error Turned out, the issue was caused by incorrect AppArmor setup. Use logrotate. –Sammitch Sep 25 '13 at 22:04 I don't have much space left. http://unix.stackexchange.com/questions/92384/how-to-clean-log-file

Linux Truncate Log File

All Aboard the Kolmogorov Complexity Train A tearful farewell Military Tank drone, why are they not common yet? Is using "you" to refer to anyone, not the person you're talking to, a known, specific grammar form? Linux and the applications that run on it can generate all different types of messages, which are recorded in various log files.

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed What is a one word noun for Ethereum? Browse other questions tagged linux file command-line or ask your own question. Linux Truncate Active Log File asked 5 years ago viewed 83392 times active 8 days ago Blog How Do Software Developers in New York, San Francisco, London and Bangalore… Related 12Proper way to rotate Nginx logs3Is

Erase the file then send SIGHUP to nginx. How To Empty A File In Linux Side note: I'm having trouble setting up Postfix and am trying to make it easier for me to read the logs hoping it can help me out, instead of having to If you want to log error messages to /var/log/msql.err you have to use safe_mysqld -lost-error=FILE. http://superuser.com/questions/218214/how-do-erase-the-contents-of-a-error-log-file-but-keep-the-file-intact Knowing where the system keeps its log files and how to make use of related commands can therefore help save valuable time during troubleshooting.

The asterix (*) after the dot (.) means messages of all priorities will be logged. How To Empty A File In Unix Without Deleting It The error looks like it's from csh, so you would do: cat /dev/null >! Also worth noting is the postrotate directive. I usually delete the old logfile and create a new logfile and I am looking for a shorter type/bash/command program.

How To Empty A File In Linux

Using an equal sign (=) after the dot (.) will cause only the specified priority to be logged. http://stackoverflow.com/questions/11598701/mysql-log-files-are-empty-although-it-seems-that-i-have-set-eveything truncate /opt/package/logs/*.log --size 0 Here all log files in the /opt/package/logs will become empty.. Linux Truncate Log File Shortest code to produce non-deterministic output PrimitiveParser Can you benefit from a second casting of Armor of Agathys while the first is still active? How To Empty A File In Unix Vim: what are all the possible swapfile extensions?

Military Tank drone, why are they not common yet? csh on my system gives the similar File exists error while bash gives the very different cannot overwrite existing file error. –R Samuel Klatchko Mar 11 '10 at 8:10 6 I find that sometimes errors don't get written to it immediately after I clear the log and save it. Next we run the logrotate command: [[email protected] ~]# logrotate -fv /etc/logrotate.conf Messages scroll over as new files are generated, errors are encountered etc. How To Delete Log Files In Linux

Exception vs empty result set when the inputs are technically valid, but unsatisfiable Do handstand push-ups hit all the three shoulder heads? The configurations for rsyslog can come from other custom files as well. What's the appropriate range for the angle of a slide? his comment is here more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science

more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science How To Delete Log Files In Linux Server Can anybody tell how do I "truncate" the file in a single command? When the dust settles, we try to check for new mail, secure or messages files: [[email protected] ~]# ls -l /var/log/mail* -rw------- 1 root root 0 Dec 17 18:34 /var/log/maillog -rw-------. 1

This goes as follows: sudo service apache2 stop sudo bash -c 'echo > /var/log/apache2/error.log' sudo service apache2 start Note: You can't use sudo echo > /var/log/apache2/error.log here, because sudo executes the

If you are using rsyslog to write log files, then the logging program can be told to stop after the log file reaches a certain size and run a script. Please post text files and program output listings as text, not as images (see How do I save terminal output to a file?). –David Foerster May 18 at 8:42 add a The file is located under the /etc directory. Linux Truncate File To Specified Size and here i added a screen-shot in my question by editing it –Kvvaradha Dec 5 '15 at 5:44 Use sudo sh -c ' echo > /path/to/file' stackoverflow.com/questions/82256/… –Progrock Dec

The two part instruction is made up of a selector and an action. Hot Network Questions All Aboard the Kolmogorov Complexity Train Why are some people so paranoid about music theory? I'm just wondering what kind of "intelligent people" upvote obviously wrong answers like this... –vaxquis Apr 12 '14 at 16:14 add a comment| up vote 43 down vote You can also http://robertwindows.com/how-to/how-to-check-logs-in-linux-server.html It's also a reliable way of getting the space back.

Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the