James, > Searching for "works from command line but not via cron" shows that you're > not alone :) > Usually, this stems from the fact that cron doesn't execute your various > shell initialisation scripts - ~/.profile, ~/.bashrc, ~/.bash_profile, > ~/.login, etc. A common problem is thus that $PATH isn't set (when the > script runs under cron) to what you expect (based on what you see when > you're running it by hand). However, all sorts of other things could be > different: your ~/.bash_profile might set a non-standard umask; or set up > some aliases that don't exist when the script runs under cron. > Nothing non standard about my bash profile but on this system, both root and my own bash profiles are identical.
> Changing the shebang line to "#!/bin/sh -x" will cause each line to be > echoed; if you then change the cronjob to ">>/var/log/cronlog" or similar > you should get some more information about what cron is actually running, > and what the rsync commands are doing. > I will add the logging. > A random guesses, aside from the things I've mentioned above: the shebang > line stipulates /bin/sh; I'd bet you're not using /bin/sh as your shell. On > some systems /bin/sh is bash; on other systems it's something different - > maybe sh, maybe dash, maybe bash-in-sh-compatibility-mode. > I hoping that the shebang line is the problem although that does not explain why it runs on the CLI as root and not fully as root in cron. I have changed it to bash but won't know until tomorrow morning if it is going to behave. > Another random guess: if the cronjob runs as a user who doesn't have > 192.168.0.20 in their ~/.ssh/known_hosts file, ssh will ask questions about > whether you really want to connect. It's possible that when you do it by > hand you have a pre-populated ~/.ssh/known_hosts, but the cronjob runs as a > different user and doesn't have that. > No - that's not the issue. 192.168.0.20 is included in root's known hosts. Thanks for giving me some places to look. Rick -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
