Hi,
I have written below check lockfile script but need some tweaking on it.
If there is a lockfile from present, I need the script to retry every 10 seconds to see if the lockfile is still there. After 120 seconds it should send an email.
In my current version, if the script encounters... (6 Replies)
Just tried out the following code from "Using lockfiles in shell scripts":
#!/bin/bash
if ; then
echo "File exists"
else
echo "File does not exists. Create file now."
echo 1 > number.txt
fi
lockfile script.lock
a=$(/usr/bin/tail -n 1 number.txt)
if ; then... (1 Reply)
Hi all,
I have to test some user priviliges. The goal is to be sure that an unauthorized user can't restart some modules (ssh, mysql etc...).
I'm trying to automate it with a shell script but in same cases I got the syslog broadcast message.
Is there any way to simply get a return code... (3 Replies)
Hi,
I am new to this forum, could any one please help me to understand the LOCKFILE command with an example and what exactly it is used for and how it is used.
Thanks
Reshu289 (4 Replies)
Hello,
I have been working on using "flock"/file lock to prevent two instances of a bash script from being executed. Below is a simplified version of what I have to illustrate the flock part. It works as it is set up there below however the piece I am trying to figure out is how to get it to... (2 Replies)
I'm changing my mindset from a few big processes moving data from a few sources under an external, dependency-based scheduler to multiple processes moving data from many sources run by each client cron and possibly interfering with each other. It has the benefits of more granular code but I'm... (11 Replies)
Hi i have a script that check pings and i use flock to so the script wont run
multipul times :
its not the whole script but this is the idea :
(
flock -x -w 3 200 || exit 1
/usr/sbin/fping -c$count -i$interval -a $hosts > $FILE1 2>&1
) 200>/var/lock/.myscript.exclusivelock
now i... (4 Replies)
Discussion started by: batchenr
4 Replies
LEARN ABOUT OPENDARWIN
mkdir
MKDIR(1) BSD General Commands Manual MKDIR(1)NAME
mkdir -- make directories
SYNOPSIS
mkdir [-pv] [-m mode] directory_name ...
DESCRIPTION
The mkdir utility creates the directories named as operands, in the order specified, using mode rwxrwxrwx (0777) as modified by the current
umask(2).
The options are as follows:
-m mode
Set the file permission bits of the final created directory to the specified mode. The mode argument can be in any of the formats
specified to the chmod(1) command. If a symbolic mode is specified, the operation characters ``+'' and ``-'' are interpreted rela-
tive to an initial mode of ``a=rwx''.
-p Create intermediate directories as required. If this option is not specified, the full path prefix of each operand must already
exist. On the other hand, with this option specified, no error will be reported if a directory given as an operand already exists.
Intermediate directories are created with permission bits of rwxrwxrwx (0777) as modified by the current umask, plus write and search
permission for the owner.
-v Be verbose when creating directories, listing them as they are created.
The user must have write permission in the parent directory.
DIAGNOSTICS
The mkdir utility exits 0 on success, and >0 if an error occurs.
SEE ALSO rmdir(1)COMPATIBILITY
The -v option is non-standard and its use in scripts is not recommended.
STANDARDS
The mkdir utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A mkdir command appeared in Version 1 AT&T UNIX.
BSD January 25, 1994 BSD