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Top Forums Shell Programming and Scripting Change file privileges automatically Post 302275648 by JerryHone on Sunday 11th of January 2009 07:25:04 PM
Old 01-11-2009
"right away" needs to be defined!

Whatever you do, you'll have to poll the directory at regular intervals to see if your new file's arrived. That interval could be anything from 1 second upwards. You should be aware though, that a process that's running continuously and checking every second may have an impact on the rest of the processes running on your machine.

Quote:
while true
do
if ls <file>
then
chmod 755 <dir>
else
sleep <duration>
fi
done
This is dangerous as it is a perpetual loop and doesn't have a way out. I'll leave you to work out the safety mechanisms! It works as the exit status of 'ls' is 0 (true) if the file exists.

HTH

Jerry
 

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uudemon(4)						     Kernel Interfaces Manual							uudemon(4)

NAME
uudemon.admin, uudemon.cleanu, uudemon.hour, uudemon.poll - Administrative shell scripts for polling remote systems, cleaning up spool directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons SYNOPSIS
These shell scripts reside in the following directory: /usr/lib/uucp DESCRIPTION
All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the scripts, remove the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file. This script reports status to the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID (uucpa) or root. This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com- mand is run with the following parameters: -C7, -D7, X2, -o2, -W1. This script runs the uusched and uuxqt daemons in the background. This script polls the systems listed in the /usr/lib/uucp/Poll file. The uudemon.poll script should be scheduled before the uudemon.hour script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script. FILES
Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files. Contains the uucp file. RELATED INFORMATION
Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1) Files: /usr/lib/uucp delim off uudemon(4)
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