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Bash 脚本在 crontab 中不起作用

tag-icon • tag-icon bash cron clamav
Bash 脚本在 crontab 中不起作用

我正在尝试制作一个 Bash 脚本来检查我是否下载了任何内容，如果有则应该扫描它。我使用 crontab 使其在启动时启动，但是该部分不起作用。

这是我的代码：

#!/bin/bash

inotifywait ~/Downloads -m -r -e modify -e moved_to --format '%w%f' | while read file
do
    $(clamscan --bell --recursive --max-filesize=99999 --log log/myLogs.txt $file)
    CLAMSCAN="$?"

    if [ $CLAMSCAN -eq 1 ]; then
        $(xmessage -buttons Ok:0,"Remove":1,"View Logs":2 -default Ok -center "Infected file: $file is found...")
        CHOICE="$?"

        if [ $CHOICE -eq 1 ]; then
            $(rm -r $file)
        elif [ $CHOICE -eq 2 ]; then
            $(xmessage -buttons Ok:0 -default Ok -center -file log/myLogs.txt)
        fi      
    fi
done

我的计划表：

# Edit this file to introduce tasks to be run by cron.
# 
# Each task to run has to be defined through a single line
# indicating with different fields when the task will be run
# and what command to run for the task
# 
# To define the time you can provide concrete values for
# minute (m), hour (h), day of month (dom), month (mon),
# and day of week (dow) or use '*' in these fields (for 'any').# 
# Notice that tasks will be started based on the cron's system
# daemon's notion of time and timezones.
# 
# Output of the crontab jobs (including errors) is sent through
# email to the user the crontab file belongs to (unless redirected).
# 
# For example, you can run a backup of all your user accounts
# at 5 a.m every week with:
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
# 
# For more information see the manual pages of crontab(5) and cron(8)
# 
# m h  dom mon dow   command
SHELL=/bin/sh
@reboot sh $HOME/.custom_security/Downloads_sec.sh

当我将目录更改为“/”，然后运行时，sh $HOME/.custom_security/Downloads_sec.sh出现此错误：

    Setting up watches.  Beware: since -r was given, this may take a while!
Watches established.
ERROR: Can't open log/myLogs.txt in append mode (check permissions!).
ERROR: Problem with internal logger.

该脚本作为独立脚本运行良好！

答案1

问题出在这一行：

clamscan --bell --recursive --max-filesize=99999 --log log/myLogs.txt $file

这会尝试写入 log/myLogs.txt。如果您位于主目录中/home/oneill，它将尝试写入/home/oneill/log/myLogs.txt，这可能是正确的位置。如果您位于根/目录中，它将尝试写入/log/myLogs.txt，但它没有适当的权限。

要么使用绝对路径，要么cd /home/oneill在脚本开头的某个位置放置一个。

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