Lock File Post: 70915

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 OSF1

lock

lock(9s)																  lock(9s)

NAME

       lock - General: Contains complex lock-specific information

SYNOPSIS

       The lock data structure is an opaque data structure; that is, its associated members are referenced and manipulated by the operating system
       and not by the user of the complex lock mechanism. Therefore, this reference page omits a description of the lock data structure's  associ-
       ated members.

DESCRIPTION

       The  lock  data	structure  is the complex lock structure that contains complex lock-specific information. A kernel module writer using the
       complex lock method declares a pointer to a lock data structure and passes its address to the associated lock routines.

NOTES

       The header file <lock.h> shows typedef statements that assign the alternate name lock_data_t for the complex lock structure and lock_t  for
       a pointer to the complex lock structure.

FILES

SEE ALSO

       Routines: lock_done(9r), lock_init(9r), lock_read(9r), lock_terminate(9r), lock_try_read(9r), lock_try_write(9r), lock_write(9r)

       Data Structures: slock(9s)

																	  lock(9s)