Trigger the execution of a script on SFTP Disconnect Post: 302971667

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Top Forums Shell Programming and Scripting Trigger the execution of a script on SFTP Disconnect Post 302971667 by jgt on Saturday 23rd of April 2016 10:57:53 AM

04-23-2016

Registered User

I have used variations of this code for over 10 years.

Code:

put abcdefgh.ltr /u2/email/temp
put abcdefgh.mmo /u2/email/temp
put abcdefgh.job /u2/email/requests

Code:

#!/bin/ksh                                                                
BATCH=$1                                                                  
proc=$$                                                                   
if [ -r /u2/email/$BATCH.pid ]                                            
then                                                                      
        echo Previous job still running `cat /u2/email/$BATCH.pid`        
        exit                                                              
fi                                                                        
echo $proc >/u2/email/$BATCH.pid                                          
echo  $proc `date +"%Y%m%d %H%M%S"` >/u2/email/$BATCH.pidhistory          
cd /u2/email                                                              
list=`ls requests|grep $BATCH`                                            
if [ "$list" != "" ]                                                      
        then                                                              
        for request in $list                                              
        do                                                                
        echo $request `date`                                              
        IFS="~"                                                           
        cat requests/$request | read  user email subject memo attachments 
        IFS=" "                                                           
        cd /u2/email/temp                                                 
        #do all the processing here                                       
        cd /u2/email                                                      
        mv /u2/email/temp/$req* done                                      
        mv /u2/email/requests/$request done                               
        if [ ! -r /u2/email/$BATCH.pid ]                                  
        then                                                              
                echo Job terminated manually `cat /u2/email/$BATCH.pid`   
                exit                                                      
        fi                                                                
        done                                                              
fi                                                                        
rm /u2/email/$BATCH.pid

We use 8.3 file names.
The file name extension for files in the request directory is used to create different queues: job for regular processing, ovn for overnight, rsh for rush. There is a separate cron job for each extension.
The process can be stopped by manually removing the pid file.
If a previous pid file exists, this does not necessarily mean that the previous invocation failed. It could be that there were more jobs to process than could be processed in the interval between invocations.

jgt

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libssh2_sftp_unlink_ex

libssh2_sftp_unlink_ex(3)					  libssh2 manual					 libssh2_sftp_unlink_ex(3)

NAME

       libssh2_sftp_unlink_ex - unlink an SFTP file

SYNOPSIS

       #include <libssh2.h> #include <libssh2_sftp.h>

       int libssh2_sftp_unlink_ex(LIBSSH2_SFTP *sftp, const char *filename, unsigned int filename_len);

       int libssh2_sftp_unlink(LIBSSH2_SFTP *sftp, const char *filename);

DESCRIPTION

       sftp - SFTP instance as returned by libssh2_sftp_init(3)

       filename - Path and name of the existing filesystem entry

       filename_len - Length of the path and name of the existing filesystem entry

       Unlink (delete) a file from the remote filesystem.

RETURN VALUE

       Return 0 on success or negative on failure.  It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a
       negative number, it isn't really a failure per se.

ERRORS

       LIBSSH2_ERROR_ALLOC -  An internal memory allocation call failed.

       LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.

       LIBSSH2_ERROR_SOCKET_TIMEOUT -

       LIBSSH2_ERROR_SFTP_PROTOCOL - An invalid SFTP protocol response was received on the socket, or an SFTP operation caused an errorcode to	be
       returned by the server.

SEE ALSO

       libssh2_sftp_init(3)

libssh2 0.15							    1 Jun 2007						 libssh2_sftp_unlink_ex(3)