getls-lR - get ls-lR files from FTP server for mirror use
getls-lR [--help] [--version] SITE RPATH LPATH
getls-lR, getls-lR.exp and getls-lR.pl are three example scripts each
of which perform the same function but using different libraries or
languages. They are examples of how to use the ls-lR files generated on
remote FTP servers by mkls-lR to keep a local copy of the remote
directory listing up to date with minimal download volume. Your FTP
mirror program or script must be able to use such a local copy or be
modified to use it before getls-lR is useful.
These scripts log into FTP server SITE anonymously or from a ~/.netrc
file, request the file RPATH.times and then from this and file LPATH
decide whether to: do nothing as LPATH is up to date; get
RPATH.patch.gz and patch LPATH; or FTP RPATH.gz and replace LPATH.
Please see README.ls-lR for details of patches to allow version 2.9 of
Lee McLoughlin’s perl script mirror to use these ls-lR files. getls-lR
and workalikes are for systems which do not have Lee’s mirror 2.9 or
cannot use it and as an example of how to modify a mirror program to
use mkls-lR’s output like mirror 2.9 can.
getls-lR is a perl script which uses Lee McLoughlin’s ftp.pl and
lchat.pl from directory /usr/lib/mirror Linux hostname and GNU gunzip
getls-lR.exp is an expect script which uses an ftp client program and
GNU gunzip and patch. It is the fastest and uses the least memory of
the three scripts.
getls-lR.pl is a perl script which uses Net::FTP and Net::Netrc from
the standard perl library and GNU gunzip and patch.
getls-lR would normally be started by cron several times a day to
ensure the local copy of the remote ls-lR is up to date when the local
mirror program wishes to use it.
getls-lR ctan.unsw.edu.au /pub/ls-lR /home/ftp/pub/remote_ls-lR
Download ls-lR.times from ctan.unsw.edu.au directory /pub and
then do nothing or download either ls-lR.patch.gz and patch or
ls-lR.gz and replace local file remote_ls-lR in local directory
--help Display help message then exit.
Display version and copyright message then exit.
mkls-lR(1), cron(8), crontab(1), mirror(1), ftp(1), ftpd(8), ls(1),
diff(1), gzip(1), date(1), at(1), tzset(3), wu-ftpd(8).
mirror-lslR.html describes how Lee McLoughlin’s Perl script mirror can
use ls-lR.patch.gz and ls-lR.times.
Ian Maclaine-cross 14th September 1999