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Old 12-26-2012, 01:34 AM   #1
azheruddin
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Need help in scripting


Hi All,
Situation Like this.

iam runnning one script for every hour for sometask
iam doing it through date variable

so like this..

if time=12:00 |some task >infile
if time=1:00 |some task >infile
if time=2:00 |some task >infile

so here i want to change time variable automatic for every after an hour and result should append.

now iam running script for every hour manually..
i want to make it auto
 
Old 12-26-2012, 02:07 AM   #2
sharadchhetri
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Quote:
Originally Posted by azheruddin View Post
Hi All,
Situation Like this.

iam runnning one script for every hour for sometask
iam doing it through date variable

so like this..

if time=12:00 |some task >infile
if time=1:00 |some task >infile
if time=2:00 |some task >infile

so here i want to change time variable automatic for every after an hour and result should append.

now iam running script for every hour manually..
i want to make it auto
try with while true loop
eg.

#!/bin/bash

# This generates a file every 5 minutes

while true; do
touch pic-`date +%s`.jpg
sleep 300
done

for ref. http://tldp.org/LDP/Bash-Beginners-G...ect_09_02.html
 
Old 12-26-2012, 03:41 AM   #3
markush
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You should use cron, read the manpage for crond. With cron you can make a job done every hour.

As for the time variable, if you want to set a variable to the time you could use for example
Code:
time=$(date +%F_%H)
where %F displays the date and %H is the hour.
Code:
markus@samsung:~$ time=$(date +%F_%H)
markus@samsung:~$ echo $time
2012-12-26_10
Markus
 
2 members found this post helpful.
Old 12-26-2012, 08:43 AM   #4
asimba
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Cron ?
 
Old 12-26-2012, 11:50 AM   #5
shivaa
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If your purpose is only to run your script per hour, then you can add it to crontab as:
Code:
0 */1 * * * /path/to/script
 
Old 12-26-2012, 04:01 PM   #6
David the H.
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cron is a program (one of several, but the most commonly-used because it's available on almost all systems) that schedules the running of other programs.

Instead of trying to handle the timing inside your script, so that it would have to be always running, make the script do the job only once, but set cron to run it when you need it to.


Here are a couple of useful-looking links I just grabbed off the web:
http://www.cyberciti.biz/faq/how-do-...-or-unix-oses/
http://kvz.io/blog/2007/07/29/schedu...using-crontab/
 
  


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