10-24-2006
How to write a daemon in Unix?
Hi
I have a directory where sometimes a file will come (in a name format say file001.txt).
I want to run a job (.ksh file) as soon as a new file comes into the directory.
How can I write a shell script which will run in the background and monitor arrival of new file in the directory?
Thanks in advance.
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LEARN ABOUT SUSE
ncftpbatch
ncftpbatch(1) General Commands Manual ncftpbatch(1)
NAME
ncftpbatch - Individual batch FTP job processor
SYNOPSIS
ncftpbatch -d
ncftpbatch -l
ncftpbatch -D
OPTIONS
Command line flags:
-d Begin background processing of FTP jobs in the current user's $HOME/.ncftp/spool directory. This returns immediately, because a
daemon process is spawned and ran in the background.
-l Lists the contents of the user's job queue.
-D This is like -d, except that the process does not become a daemon.
DESCRIPTION
This program is responsible for processing background FTP requests. It is normally only run by ncftp and not manually by a human being,
however you can run it to manually process the FTP job queue.
The jobs are spool files written to a user's $HOME/.ncftp/spool directory and have a special format and file-naming convention (which con-
tains when the job is to be run). ncftp runs this program when it needs to, but if the ncftpbatch daemon dies unexpectedly the jobs that
are left in the queue will not be processed until another instance of ncftpbatch is run.
ncftpget and ncftpput can also be used to submit jobs for batch processing, using those utilities' -b command-line flag. If desired, you
can also manually create the spool files although this procedure is not documented here (see the manual page for ncftpspooler for more
information on how to do that).
DIAGNOSTICS
ncftpbatch writes to its own log file, the $HOME/.ncftp/spool/log file. This file should be examined to determine if any ncftpbatch pro-
cesses are actively working on jobs.
AUTHOR
Mike Gleason, NcFTP Software (http://www.ncftp.com).
SEE ALSO
ncftp(1), ncftpput(1), ncftpget(1).
ncftpbatch NcFTP Software ncftpbatch(1)