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09-12-2008 07:54 AM
09-12-2008 07:54 AM
Script
I am storing the configuration information in a directory and then append the date to it. I am fine upto this point. I want to add some more functionality to it. i-e after storing the information, I want to keep the last 5 directories (5 most recent directories ) and delete the other.
Directories names have the following format:
drwxrwxrwx 2 root users 8192 Sep 12 11:50 lvm.120908
drwxrwxrwx 2 root users 8192 Aug 13 11:49 lvm.130808
Directories names have the following format:
drwxrwxrwx 2 root users 8192 Sep 12 11:50 lvm.120908
drwxrwxrwx 2 root users 8192 Aug 13 11:49 lvm.130808
3 REPLIES 3
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09-12-2008 09:01 AM
09-12-2008 09:01 AM
Re: Script
> Directories names have the following format:
Step 1: Use a date format like yyyy=mm-dd,
so that the names naturally sort into date
order. Then simple programs like "head" or
"tail" can be used to find the last or first
N items in the list.
Step 1: Use a date format like yyyy=mm-dd,
so that the names naturally sort into date
order. Then simple programs like "head" or
"tail" can be used to find the last or first
N items in the list.
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09-12-2008 10:11 AM
09-12-2008 10:11 AM
Re: Script
Or - you could just use ls -t or ls -rt to get the names in order of time modified, then use head or tail.
Pete
Pete
Pete
Pete
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09-12-2008 06:56 PM
09-12-2008 06:56 PM
Re: Script
>Pete: you could just use ls -t or ls -rt to get the names in order of time modified,
This would fail if you just happened to remove a junk file in the directory. The right solution as Steven says is to use rational date formats and not chauvinistic ones.
ISO 8601
http://www.iso.org/iso/date_and_time_format
This would fail if you just happened to remove a junk file in the directory. The right solution as Steven says is to use rational date formats and not chauvinistic ones.
ISO 8601
http://www.iso.org/iso/date_and_time_format
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