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blank text file

Posted on 2011-09-14
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Last Modified: 2012-05-12
hello there,
I would like to create a cron to run every hour that can erase a txt file and leave it blank..
how can I do that?
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Question by:XK8ER
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3 Comments
 
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by:woolmilkporc
ID: 36537853
0 * * * * /usr/bin/touch /path/to/file.txt
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by:XK8ER
ID: 36537871
touch doesnt seem to be working
[(01:35 PM)][(root@alpha)] [(~)] $ cat aa.txt
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
[(01:35 PM)][(root@alpha)] [(~)] $ /bin/touch aa.txt
[(01:35 PM)][(root@alpha)] [(~)] $ cat aa.txt
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
[(01:35 PM)][(root@alpha)] [(~)] $

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Accepted Solution

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woolmilkporc earned 2000 total points
ID: 36537938
Sorry, didn't read carefully enough (Smartphone!)

Try this:

0 * * * * >/path/to/file.txt

">" will erase the file or create it if it doesn't exist. It's essentially the same as

0 * * * * /usr/bin/cat /dev/null > /path/to/file.txt

wmp
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