The code in your script:
implies that you believe that writing the string Now exiting. to standard output from your script causes the script to stop running. It does not do that. It simply writes that text and continues running the rest of the code in your script. In this case, it sleeps for two seconds and breaks out of the loop looking for files being downloaded. And, then it immediately starts testing for the conditions you have set up to be verified as being present before you suspend your computer. If you want your script to exit (as indicated by your echo statement), you need to actually include an exit statement in your code!
Does anyone know if there is a UNIX-tool available that constantly will check if (some specific) deamons are running and will notify (via email) if one has failed/stopped?
I searched the web, but so far didn't find anything. (3 Replies)
Hi ,
I have a csh code below which check the process if it's running.
Can any expert advise me on the following:
1) what does this notationmean ">!" and how is it different from the append ">" notation ?
2) how does "setenv" work in this code ?
# Check whether there is a running... (3 Replies)
Hi
I would like to check if an instance of a script is already running.
I've seen many different examples, but I haven't the slightest idea as to how to do this.
Can you please help.
Thank you. (5 Replies)
Hi
What is the best command to check if a particular process is running in a linux server or not
To check any java process, I use the below command.
ps -ef |grep jvm
When I execute the above command, it lists me all the processess . The above command should ideally return only the... (6 Replies)
Hi,
I had search the web for a script to download email, but failed to found one.
I need a bash or perl script that will check for email originating from an address such as john@rambo.com and download the .zip attachment into a specified folder.
Anyone could assist or give me some... (1 Reply)
Happy New Year
Is there a quick way to check to see if a script is already running.
I want to put in a check in the script to exit, if already running.
Currerntly i can only think of doing it the following way.
# ps -ef | grep -i 3_HOUSEKEEPING_FFTVTL_TO_FFTDSSU_DUPLICATION.ksh |... (5 Replies)
I have a script on a Linux box which scp the files to windows server without any issues. but there are time frames where the windows server will not be available due to maintenance. hence I need to check if the remote location is available before running the scp command.
scp... (3 Replies)
Hello,
Could someone do the following bash ubuntu script for me? I have 5 screen processes of bot:
SCREEN -dmS Xbot_instance_1 php core.php -i 1
SCREEN -dmS Xbot_instance_2 php core.php -i 2
SCREEN -dmS Xbot_instance_3 php core.php -i 3
SCREEN -dmS Xbot_instance_4 php core.php -i 4
... (2 Replies)
Discussion started by: kotch
2 Replies
LEARN ABOUT OSX
sleep
SLEEP(1) BSD General Commands Manual SLEEP(1)NAME
sleep -- suspend execution for an interval of time
SYNOPSIS
sleep seconds
DESCRIPTION
The sleep command suspends execution for a minimum of seconds.
If the sleep command receives a signal, it takes the standard action.
IMPLEMENTATION NOTES
The SIGALRM signal is not handled specially by this implementation.
The sleep command will accept and honor a non-integer number of specified seconds (with a '.' character as a decimal point). This is a non-
portable extension, and its use will nearly guarantee that a shell script will not execute properly on another system.
EXIT STATUS
The sleep utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
To schedule the execution of a command for x number seconds later (with csh(1)):
(sleep 1800; sh command_file >& errors)&
This incantation would wait a half hour before running the script command_file. (See the at(1) utility.)
To reiteratively run a command (with the csh(1)):
while (1)
if (! -r zzz.rawdata) then
sleep 300
else
foreach i (`ls *.rawdata`)
sleep 70
awk -f collapse_data $i >> results
end
break
endif
end
The scenario for a script such as this might be: a program currently running is taking longer than expected to process a series of files, and
it would be nice to have another program start processing the files created by the first program as soon as it is finished (when zzz.rawdata
is created). The script checks every five minutes for the file zzz.rawdata, when the file is found, then another portion processing is done
courteously by sleeping for 70 seconds in between each awk job.
SEE ALSO nanosleep(2), sleep(3)STANDARDS
The sleep command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A sleep command appeared in Version 4 AT&T UNIX.
BSD April 18, 1994 BSD