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aristosv
Asked: 2015-07-22 10:50:03 +0800 CST

cron and lftp issue

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I have the following scripts running on raspbian.

start

#!/bin/bash
/root/config/commands 2>&1 > /root/log/$HOSTNAME.log

commands

#!/bin/bash
source /root/config/variables
echo TestLine
/usr/bin/lftp ftp://user:[email protected] -e "set ftp:ssl-allow no ; set net:reconnect-interval-base 5 ; set net:max-retries 2 ; mirror -e /testgroup/music /root/media ; quit"
/usr/bin/mail -s "$HOSTNAME Report" $emailaddress < $logdir/$HOSTNAME.log``

When I run "start" manually I receive the email below

TestLine
Total: 1 directory, 4 files, 0 symlinks

When I run it using cron, I get the following email

TestLine

This is how crontab -e is set up

@daily /root/start

Any idea why would cron strip the lftp output from the email?

bash

3 Answers

  1. cron does not run with the same environnent as an interactive shell. Your $HOSTNAME variable is not set.

    You can set it at the start of your script like so: 

    HOSTNAME="`/usr/bin/hostname`"
    • 1

  2. I have spent some time fighting against the problem myself. Decided to go with screen. E.g.

    screen -dmS screen_name bash -c '/root/start'
    • 0

  3. I had the same issue. lftp simply does not output that line when run from cron, but it still does its job.

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