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Bash script getting difference values from files

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# 1  
Old 07-02-2008
Data Bash script getting difference values from files
Hi
I want to write a BASH script.
I have files updated every hour from two platforms.The file names are :
- Falcon_smsCounters_1200020708.log
- Canari_smsCounters_1200020708.log

1200 refers to hour twelve and 020708 to 02 july 2008.

Inside every file i have a list of parameters splitted by :

Falcon_smsCounters_1200020708.log contains for example

parameter 1 : 89026
parameter 2 : 98526
etc...




parameter n : 78954

A new file comes every hour containing the same parameters but different values . So what i want is to extract the difference values (decimal values) between Falcon_smsCounters_ of hour n and file
Falcon_smsCounters_ of hour n-1 and replace them in the newest file which is for hour n
Same method for Canari_smsCounters_1200020708.log
I want them simoulteanously inside this script , i mean to make the difference every hour .

Thanks
# 2  
Old 07-02-2008
just one thought... rather than relying on the date and time embedded in filename, why not consider the last time of modification to find latest files?
# 3  
Old 07-02-2008
Bash scripting and getting difference values
ls -ltr and ????
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