Shell Programming and Scripting

Hi, I need help about sending mail in linux. I have a ubuntu server with working web site, users are uploading files in one main directory (to folder inbox). With samba I shared that directory and on other mashine is Windows server and application that is reading that files and writting content to database. Based of the result is creating new file with content: package name that is recieved, size, date and time and does the package contained erros or it was OK. That newly created files are again sent over samba to the same directory in ubuntu server (to folder outbox). That all is working!

Now, i need to listen are there new files in folder outbox. If there are new files, I need to send their content to specific email address. I have users in Mysql database. The name of files that are coming to outbox is with mask like this ddmmyyyy.x where x is user id in Mysql. So if "extension" of file is 1, I need to send mail to mail address of user in mysql with user id 1. If its 2 I am sending to user with user id... and after that move file from outbox to archive.

So, it's going like this: new file arrived in outbox, based on the extension of that file, select email address of user from database with user id = extension of file. On that email address send content of that file and move file to archive.

Does anyone can help me to solve this. Thank you!

P.S I have a mail working and I can send email from shell.

Anything you tried yourself? Please show some code using code tags, thanks. There should be many examples in this forum here if you use the search function to get an easy start.

I done this so far, I start script manualy and it going through a directory. If there is file with extension I want I move it to archive and calling a php file that is sending mail to that user. Problem is here that I start script manualy and I second problem is that file I include in php like a message in mail i define in code, it's not text from file that called that code. I don't know how to solve this because I am begginer in linux and not so good in shell programming. Here is my code:

Code:

#!/bin/sh
# Configure variables at the begining of the script
MONITOR_DIR=/var/www/frep/predaja2
TMP_DIR=/home/tmp
SUCCESS_DIR=/home/t_arhiva
FAILED_DIR=/home/g_arhiva
cd $MONITOR_DIR
COUNT_FILES=$(ls -l * | grep ^- | wc -l)
if [ $COUNT_FILES -gt 0 ]; then
echo "A total of" $COUNT_FILES "file(s) found.";

for f in *.562; do
php /var/www/mail/mail.php
echo "Moving file:" $f "to:" $TMP_DIR/$PROCCESS_ID_DIR;
mv $f $TMP_DIR/$PROCCESS_ID_DIR
mv $f $SUCCESS_DIR/
done
else
echo "No files found... Exit!";
fi

Assuming that you want to run this as a cron job eventually, you should add an outer loop to the sh script.

Code:

#!/bin/sh
if [ -r job.pid ]
then
echo previous job `cat job.pid` still running
exit
fi
echo $$ >job.pid
.....your script
rm job.pid

This will prevent a second job starting while the first is still running (or has died.)
Secondly, the line "for f in *562" will pick partially received files if this process is running while some other process is dropping a new file into the directory.