FTP Sync with Linux

donat que en un hosting no tinc acces via ssh, i no puc utilitzar rsync per realitzar backups contra ell, utilitzaré la mateixa  estrategia pero ara fent-ho via ftp amb lftp

la meva font d'informació és :

http://www.dangibbs.co.uk/journal/ftp-sync-usin-linux

pero finalment canvio la ordre amb la opció -r per tal de poder pujar del meu servidor al remot, i tot el document està pensat en sentit contrari, del remot a aquest. (jo no puc utilitzar comandes en aquest hosting)

dintre del fitxer lftp-script posaré 

open ftp://username:password@website.com

mirror -R -v --only-newer /var/lib/mysql /eso2/mysql

d'aquesta manera envio de sabadell a mirrors hosting en nominalia. 

la web font indica que .....

If you can’t use SSH or have limited access to a server it can be difficult to synchronise or create backups of files such as websites. As asked by Tom here’s how to use the powerful and flexible LFTP to sync a remote FTP account to a local directory using Linux.

First of all you will need to install LFTP via your package manager or from their website at http://lftp.yar.ru/. In Ubuntu, for example, you would use:

1	sudo apt-get install lftp

Next create a small and easy script called lftp-script that LFTP can read:

1 2	open ftp://username:password@website.com mirror -v --only-newer /home/local/path/ /website.com/public_html/

As lftp-script contains a username and password you will want to remove all group and public permissions on the file with something like;

1	chmod 600 lftp-script

Finally you can run LFTP and start the synchronisation straight away, its that easy and perfect for cron backups:

1	lftp -f /path/to/lftp-script

In the example above I used -v (verbose) and –only-newer so that files that haven’t changed don’t get downloaded and overwritten. There are a ton of arguments that will solve just about every FTP problem needed. Some interesting ones, for mirror, are below.

mirror [OPTS] [source [target]]   Mirror specified source directory to local target directory. If target directory ends with a slash, the source base name is appended to target directory name. Source and/or target can be URLs pointing to directo‐ ries.   -c, --continue continue a mirror job if possible -e, --delete delete files not present at remote site --delete-first delete old files before transfer‐ ring new ones --depth-first descend into subdirectories before transferring files -s, --allow-suid set suid/sgid bits according to remote site --allow-chown try to set owner and group on files --ascii use ascii mode transfers (implies --ignore-size) --ignore-time ignore time when deciding whether to download --ignore-size ignore size when deciding whether to download --only-missing download only missing files --only-existing download only files already existing at target -n, --only-newer download only newer files (-c won't work) --no-empty-dirs don't create empty directories (implies --depth-first) -r, --no-recursion don't go to subdirectories --no-symlinks don't create symbolic links -p, --no-perms don't set file permissions --no-umask don't apply umask to file modes -R, --reverse reverse mirror (put files) -L, --dereference download symbolic links as files -N, --newer-than=SPEC download only files newer than specified time --on-change=CMD execute the command if anything has been changed --older-than=SPEC download only files older than specified time --size-range=RANGE download only files with size in specified range -P, --parallel[=N] download N files in parallel --use-pget[-n=N] use pget to transfer every single file --loop loop until no changes found -i RX, --include RX include matching files -x RX, --exclude RX exclude matching files -I GP, --include-glob GP include matching files -X GP, --exclude-glob GP exclude matching files -v, --verbose[=level] verbose operation --log=FILE write lftp commands being exe‐ cuted to FILE --script=FILE write lftp commands to FILE, but don't execute them --just-print, --dry-run same as --script=- --use-cache use cached directory listings --Remove-source-files remove files after transfer (use with caution) -a same as --allow-chown --allow- suid --no-umask

… and for the rest man lftp or take a look at the LFTP online man.

el man es troba a la direcció http://lftp.yar.ru/lftp-man.html