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Old 07-15-2004, 07:08 PM   #1
huntz
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Registered: Sep 2003
Location: Aussie
Distribution: shlackoes
Posts: 38

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help with script


Hi

Need some help with a script.

I'm basically mirroring an ftp with wget which in turn gets mirrored by another ftp. I know it's a bit messy but for security reasons it has to be done like this.

Anyway the ftp is constantly being updated with new files.

My wget script is running in a continuous loop. When it has finished downloading a file it the copies it to another folder for the other FTP server to download.


#!/bin/bash
while true
do
wget -m -nH ftp://userassword@ip.addy.com -P /var/ftp/pub/commnews/ftp -o /var/ftp/pub/commnews/scripts/report/report.txt
cp -r /var/ftp/pub/commnews/ftp/* /var/ftp/pub/commnews/ftpsync/
done
# End of script

The wget part is working fine. Its the cp part I'm having problems with.

Is there someway of specifying the cp command to use timestamps or something. Because at the moment everytime wget finishes the download it then copies everything from folder A to folder B. I only want it to copy the new files from folder A to folder B.

Any help much appreciated.

Ta
 
Old 07-15-2004, 07:20 PM   #2
huntz
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Registered: Sep 2003
Location: Aussie
Distribution: shlackoes
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hmm actually I think i worked it out. cp -ru should do it right?
 
Old 07-16-2004, 06:44 AM   #3
maxx
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Smile

ya
 
Old 07-16-2004, 12:50 PM   #4
thegeekster
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Registered: Dec 2003
Location: USA (Pacific coast)
Distribution: Vector 5.8-SOHO, FreeBSD 6.2
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Re: help with script

Quote:
Originally posted by huntz
...The wget part is working fine. Its the cp part I'm having problems with.

Is there someway of specifying the cp command to use timestamps or something. Because at the moment everytime wget finishes the download it then copies everything from folder A to folder B. I only want it to copy the new files from folder A to folder B.

Any help much appreciated.

Ta
Use the '-a' switch if you want to preserve the timestamps, permissions and links (rather than following links) (same as using -dpR)..............Combine with the '-u' switch to only update while preserving timestamps and permissions:

cp -au




PS: For just a recursive copy, use the '-R' switch rather than the '-r' switch................From the cp manpage:
Quote:
-r
Copy directories recursively, copying any non-directories and non-symbolic links (that is, FIFOs and special files) as if they were regular files. This means trying to read the data in each source file and writing it to the destination. Thus, with this option, `cp' may well hang indefinitely reading a FIFO or /dev/tty. (This is a bug. It means that you have to avoid -r and use -R if you don't know what is in the tree you are copying. Opening an unknown device file, say a scanner, has unknown effects on the hardware.)
-R, --recursive
Copy directories recursively, preserving non-directories (see -r just above).

Last edited by thegeekster; 07-16-2004 at 01:04 PM.
 
  


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