Lock File Post: 70843

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to lock a file in unix?

We wish to keep a sequence number in a file. When someone wants to get the next sequence number we need to lock the file, get the next number and increment it by one. How do you do that? I know how to get the number and increment it but how do I lock the file and test that it is locked or not...

2. UNIX for Dummies Questions & Answers

lock file!

I found a lock file like this lrwxrwxr-x 1 sskb apollo 16 Oct 22 22:00 lock -> hostname:2747 (pl. note that hostname is a number like 123.4.5.6) but this was not shown in the file manager eventhough I had selected to show the hidden files. I could not even read the...

3. UNIX for Dummies Questions & Answers

how to lock keyboard without using lock command

how can I lock my keyboard while I'm away from the computer without using lock command. What other commands gives me the option to lock keyboard device? thanks

4. Red Hat

lock the file in linux

Hi, I want to lock the file in linux and the file cannot be edit or modify by other .I know in perl, there is function flock , but it is not worked. The file can be modifed and edit even if it is locked by flock . Any other way to lock the file and so other cannot edit or modifed it ???? Any...

5. UNIX for Advanced & Expert Users

file lock

I have an Essbase installation on Solaris 10 and need to get the backups configured. Unfortunately several key files are locked and Essbase (OLAP application) is not releasing the locks when the Essbase or the applications within stop running. It appears I can use chmod to unlock the files but I...

6. Red Hat

Security Question: Lock after invalid login, Session Lock and Required Minimum Password Length

Hello all, If anyone has time, I have a few questions: How do I do the following in Linux. We are using Red Hat and Oracle Enterprise Linux, which is based on Red Hat too. 1. How to lock the account after a few (like 3) invalid password attempts? 2. How do you lock a screen after 30...

7. UNIX for Advanced & Expert Users

Testing privileges -lock lockfile /var/lock/subsys/..- Permission denied

Hi all, I have to test some user priviliges. The goal is to be sure that an unauthorized user can't restart some modules (ssh, mysql etc...). I'm trying to automate it with a shell script but in same cases I got the syslog broadcast message. Is there any way to simply get a return code...

8. Shell Programming and Scripting

Lock file creates with '?'

Hi, I am trying to create a lock file with the following code but for some reason after file is created it has wrong name "PASP?.lock??" Please let us know how to get rid of these '??' from file name and from where they are coming? #!/bin/ksh...

9. Shell Programming and Scripting

Lock file creation

Hi, Please let me know how these steps are creating a lock file using echo " ". LOCK_FILE=${LOG_DIR}/${DBNAME}_MD.lock # create lock file if then echo "Another process is running already. Will terminate this one." >> ${LOG_FILE} 2>&1 echo "If the lock file is not needed, please...

LEARN ABOUT CENTOS

latencytop

LATENCYTOP(8)						      System Manager's Manual						     LATENCYTOP(8)

NAME

       latencytop - a tool for developers to visualize system latencies

SYNOPSIS

       latencytop [--unknown] [processes...]

DESCRIPTION

       This manual page documents briefly the latencytop command.

       latencytop  is  a Linux* tool for software developers (both kernel and userspace), aimed at identifying where in the system latency is hap-
       pening, and what kind of operation/action is causing the latency to happen so that the code can be changed to avoid the worst latency  hic-
       cups.

       LatencyTOP  focuses on the cases where the applications want to run and execute useful code, but there's some resource that's not currently
       available (and the kernel then blocks the process). This is done both on a system level and on a per process level, so  that  you  can  see
       what's happening to the system, and which process is suffering and/or causing the delays.

       You  can  walk  the  processes by using the cursor keys. If you press s followed by a letter, then only active processes starting with that
       lettter are displayed and walked. If you press s followed by 0 then that filter is reset.

SEE ALSO

       powertop(1)
       The program is more fully described at http://www.latencytop.org

AUTHOR

       latencytop was written by Arjan van de Ven <arjan@linux.intel.com>.

       This manual page was written by Giacomo Catenazzi <cate@debian.org>, for the Debian project (but may be used by others).

								 November 9, 2008						     LATENCYTOP(8)