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Bash script does not work as a cron job

Posted on 2009-05-12
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Last Modified: 2013-12-26
Greetings,

I have a script that runs and converts some images using ImageMagic's convert utility. If you run it in the directory it does what it's supposed to, but when you execute the script as a cron job, it can't find the directories.

I am sure it has something to do with the very first line, but even if I hard code the directory on that line prior to the *.jpg, it comes back and says it can't find the file in the directory.

So again, when I load the sript below in the directory, it runs fine, when I run it with cron, I get this error message:

ls: cannot access *.jpg: No such file or directory

for img in `ls *.jpg`

do

convert -size 140x100 -resize 140x100 +profile '*' -shave 0x04 $img /home/realtordata/images/imagedownload/testthumbs/$img
 

done

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Question by:ctoolz
3 Comments
 
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Expert Comment

by:ozo
ID: 24370018
how did you hard code the directory on that line prior to the *.jpg?
what is pwd whe you run it, and what is pwd when cron runs it?
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Accepted Solution

by:
amit_g earned 500 total points
ID: 24370027
For cron you should use absolute paths for all file locations and commands.

#!/bin/bash
 

cd /full/path/to/dir
 

for img in *.jpg

do

    /full/path/to/convert -size 140x100 -resize 140x100 +profile '*' -shave 0x04 $img /home/realtordata/images/imagedownload/testthumbs/$img

 

done

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Author Closing Comment

by:ctoolz
ID: 31580753
Thanks for you quick and correct response! Worked like a charm!
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