Linux – crontab cannot find script

cronecryptfslinux

I have a cron job that runs under my user once per night. I installed it using crontab -e and a by adding the line:

0   1   *   *   *     /home/username/diskreport.sh

The crontab is set up so that it emails me the result. Seemingly randomly I get an email from Cron Daemon stating the script is not found (opposed to the output of diskreport.sh).

/bin/sh: 1: /home/username/diskreport.sh: not found

I did have an error at the start of the script which I've corrected, but it wasn't preventing the script from running. It runs fine under both sh and bash:

#~/bin/bash

Best Answer

It turns out this was related to ecryptfs and having a encrypted home directory. The "seemingly random" behavior was triggered by having an active SSH session with my user logged in. While logged in cron was able to read my home directory because it was mounted and decrypted. While logged out the script is unavailable. Thanks for all the helpful suggestions.

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Cron – Ubuntu 9.10 cron script ‘ec2-consistent-snapshot’ unable to execute and access files

sudo crontab -e edits root's crontab right? When you say you have $HOME/.awssecret, what is $HOME? root's home or yours?

You might want to think about using /etc/cron.d, you can additionally add the name of the user to execute the script as in these files (e.g. caution: slightly different syntax for the scripts)

Edit (answering your question in the comment):

Create a file /etc/cron.d/myEc2Crontab

make it contain:

SHELL=/bin/sh
PATH=whatever you need as your path
12 18 4 2 *  root ec2-consistent-snapshot --mysql --xfs-filesystem /vol vol-xxxxxxx >>/mnt/backup.log 2>&1

note the added 'root' just after the time specification, prior to your command. This specifies the user the command runs as.

CronTab Not Running PHP Scripts – How to Fix

You can use the web version in the cron if GET(lwp-request) or curl is installed on the server

GET

* * * * * GET http://localhost/cron/sendQueuedEmails.php > /dev/null

curl

* * * * * curl -o /dev/null http://localhost/cron/sendQueuedEmails.php

Best Answer

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Cron – Ubuntu 9.10 cron script ‘ec2-consistent-snapshot’ unable to execute and access files

CronTab Not Running PHP Scripts – How to Fix

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