This is a very crude attempt in Bash at something that I needed but didn't seem to find in the 'sleep' command. However, I would like to be able to do it without the need for the temp file. Please go easy on me if this is already possible in some other way:
How many times have you used the... (5 Replies)
I would want to run a code for 1 min and if it doesnt succeed in 1 min..I would want to exit it..I am using the following code...But the script is not going into my code part.It is waiting for 60 secs and then getting killed.
The code which is in the while loop actually takes less than 60 secs...... (6 Replies)
Hi,
Can any1 provide the code for my req:
I am loading few set of files into database through one unix script. I ll try to describe the process:
load_cdr-->main script
Source Feeds are A & B.
File in A-akm.dat
File in B-bkm.dat
Now my script runs through cron jobs everyday...and for both... (6 Replies)
Hi Gurus,
I am working one below script. I am stuck at the else condition.
#!/bin/ksh
while :
do
cur_date=`date |cut -d"," -f 1`
cur_time=`date +"%H%M"
if ||; then
if && ; then
echo "File " $FIRST_FILE "... (8 Replies)
I need to find the max/min of columns 1 and 2 of a 2 column file what contains the special character ">".
I know that this will find the max value of column 1.
awk 'BEGIN {max = 0} {if ($1>max) max=$1} END {print max}' input.file
But what if I needed to ignore special characters in the... (3 Replies)
I need a script that will search through multiple files and when the first 2 columns match, print out Columns 1 and 2 and the minimum value.
File 1
24.01 -81.01 1.0
24.02 -81.02 1.0
24.03 -81.03 3.0
File 2
24.01 -81.01 5.0
24.02 -81.02 3.0
24.03 -81.03 ... (3 Replies)
Hi all,
I have a bash script in which it runs multiple if conditions if a word count from a grep is equal to a number. When this number is not reached I want to sleep for very few seconds (let's say 3) and start over again, till it matches the word count of 8.
Here's a sample of the code so... (6 Replies)
Discussion started by: nms
6 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