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Comparing last modified dates

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# 1  
Old 08-16-2005
Comparing last modified dates
Hi All.

Can someone please give me an example of how I'd do a comparison to find out if the last modified date of a file is newer than yesterday (i.e. today - 1 day)?

Example:

if [ last modified date of text.txt -ge yesterday]; then
echo "Do something..."
fi

Any ideas or examples?

Thanks.
# 2  
Old 08-16-2005
date --reference <file>
You can use the --reference option with GNU date to get the modified time for a give file, and then put it in a machine-parsable format. For example:

Code:
$ date --date yesterday +%s
1124154057
$ date --reference ./example.txt +%s
1124238278

Hope this helps!
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