谢谢大家的热心答复. 我想应该不是权限的问题,因为我是用root登录, 然后crontab -e; 而且当那个script执行的时候, 我用 ps -u root 可 以看到它的进程.
在 2005-03-10四的 15:16 +0900，Yan, Zheng写道： > try change like this: > > 15 18 * * * root /usr/local/bin/full_backup.sh > > Cai Qian wrote: > > >照你所说，我第一个想到的可能是权限问题。 > > > >在 2005-03-09三的 14:04 -0600，Hongbo Ma写道： > > > > > >>I wrote a script called full_backup.sh to do bakcup. It is supposed to > >>run at a given time everyday. I log in as root, and type "crontab -e" > >>add a entry like following to the crontab file: > >>******************************* > >>15 18 * * * /usr/local/bin/full_backup.sh > >>******************************** > >> > >> > >>The content of the full_backup.sh (I put it under /usr/local/bin) is: > >> > >>****************************************** > >>#!/bin/sh > >>mt -f /dev/nst0 rewind > >> > >>rm /var/log/tar/snapshot > >> > >>tar -cvpf /dev/nst0 --label="Full Backup Set Created > >>on `date '+%d-%B-%y'`." --listed-incremental=/var/log > >>/tar/snapshot /home/hma/project > >>******************************************* > >> > >>I can run this script with no problem manually and get my archive file > >>on tape. However, if I use cron, although it IS triggered by cron, the > >>'tar' command in the script didn't run successfully. That is to say, I > >>know the script was executed by checking the consequence of > >>"rm /var/log/tar/snapshot", but I didn't get the archive file on tape. > >> > >>Strangely, if I changed the backup target directory from the > >>"/home/hma/project" to "home/hma/proposal", then every thing is fine. I > >>get the archive file on tape. "proposal" directory is about 3MB, while > >>"project" directory is about 700MB. But the size should not be a > >>problem, since I can manually run the script to backup "project" > >>correclty. > >> > >>Obiousely, something is wrong with my cron, but I just don't know how to > >>correct it. Currently, I don't have sendmail program installed on my > >>system, so I can't get the email cron is supposed to send to me. > >> > >>Any help is highly appreciated!! > >> > >>Hongbo Ma > >> > >> > >> > >> > > > > > > > > -- Hongbo Ma <[EMAIL PROTECTED]> University of Wisconsin at Madison -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
