Instead of making the script sleep for sometime, it doesn't work all the time as time may shift over a period.
How to make a script wake up every 30 seconds and check the current time, if the time is around 01:01:00 for the
./abc.sh PB then execute the script. When the check is done, how to mark it the flag as completed.
At 12:00AM reset all the flags and how to check again for the next day.
I've used "mailx -r return@address" before many times for automated scripts, but when I try to use it on FreeBSD, I get "mailx: illegal option -- r". Is there another version of mailx I should be using to get this to work? The full command I'm trying to run is:
mailx -s "Load Results $(date... (1 Reply)
I need your help please.
In a production system, i've seen many running process as follow:
sh -c ./pathname/shellname
what exactly the flag option -c is used for?
ive tried to look at the man page, but it doesnt say much.
ill appreciate yor help. Thanks (4 Replies)
I want to incorportae a subscript in a job script which is used for loading purposes.
What i require is that before a job runs it should check for a flag ,if flag is not present then create it and the loading should start.
Once loading finishes it should delete the flag.
So if any other load... (1 Reply)
I have been compiling a cpp program using following command:
g++ -c -ansi a.cpp with g++ version 4.1.2. I want to know the significance of the -ansi flag and which other higher g++ version supports this flag by default
Dhiraj (1 Reply)
Hi,
I am first sorry to ask for that, but I am in trouble so I hope you will be agreed to help me on this.
I am solaris (ksh).
I have a lots of file but I only need to get the date and time of the flag files.
Here is the "ls -lrt" view :
ls -lrt | grep Flag_Saturne_R*Return
... (3 Replies)
Hi,
I would like to know if there's any option to use with the du command so that I can list only the files/directories on the current filesystem... I usually use
du -gs *But I'd like to see only the directories in the filesystem I am on, and not the mount point directory of other fss...
... (6 Replies)
Hi all,
We dont have access to aix source code and i have a doubt.
The flag SC_NO_RESERVE, is it got to do anything with the failover?
If the flag is set the paths are going to failed state. If flag is not set everything comes up fine after failover.
Thanks in advance for helping
... (2 Replies)
Hey, all!
Why is the "human readable" flag changing the behavior of du? And while I'm at it, can you make du only look at files, not directories. I often find myself wanting to find the largest file(s) in a dir or vol. Using 'find' itself, it seems you have to at least be able to guess the size of... (2 Replies)
Morning Unix Guru's,
I have written a script which output the contents of a DB. No the DB is not clever to check this or flag and there is no command for the tool to flag this, which human intervention.
But i need to check to see if there are duplicate enteries in the file output and flag... (5 Replies)
.... means multi line
ddd,bug fgdrg
dfdfsdfdfsd
fsdfdfdfd
fdfdsfdsfsd
.......
flag2
......
aaa,bug sfsfsfsfs
dfdfsdfdfsd
fsdfdfdfd
fdfdsfdsfsd
......
flag1
......
ddd,bug fgdrg
dfdfsdfdfsd (9 Replies)
Discussion started by: yanglei_fage
9 Replies
LEARN ABOUT OPENDARWIN
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.
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.
DIAGNOSTICS
The sleep utility exits 0 on success, and >0 if an error occurs.
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