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Linux Administration Book for Free

February 8th, 2010 No comments
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A short post to advise you that you can download for free the “GNU/Linux Advanced Administration” book in PDF forrmat this page, or from this site.

Should be back soon, we will demonstrate how to build a Linux Cluster (Red Hat) in a serie of articles.

See you soon !

Categories: General

Making Date Calculation

January 17th, 2010 No comments
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You’re doing a script and you need to know what was the date 35 days ago or what will the date be in 21 days. This is where¬† the “date” command can help you doing that kind of calculation. In this little article we will present some examples to help us making some data calculation. I would like to point out, that all of these date calculation take in consideration the leap year.

DISPLAY CURRENT DATE
# date
Sun Jan 17 11:52:40 EST 2010

DISPLAY DATE OF 35 DAYS AGO
# date --date="35 days ago"
Sun Dec 13 11:53:51 EST 2009

DISPLAY DATE OF 2 MONTHS AGO
# date --date="2 months ago"
Tue Nov 17 11:53:53 EST 2009

DISPLAY DATE OF 1 YEAR AGO
# date --date="1 year ago"
Sat Jan 17 11:53:56 EST 2009

DISPLAY DATE 1 HOUR AGO
# date --date="1 hour ago"
Sun Jan 17 10:55:00 EST 2010

DISPLAY DATE THAT WILL BE IN 35 DAYS
# date --date="35 days"
Sun Feb 21 11:56:26 EST 2010

DISPLAY DATE THAT WILL BE IN 1 MONTH
# date --date="1 month"
Wed Feb 17 11:56:32 EST 2010

DISPLAY DATE THAT WILL BE NEXT FRIDAY
# date --date="this friday"
Fri Jan 22 00:00:00 EST 2010

DISPLAY NEXT DAY DATE
# date --date="next day"
Mon Jan 18 11:57:18 EST 2010

CONVERT DATE TO EPOCH TIME
# date -d "20100118" +%s
1263790800

CONVERT EPOCH TIME TO DATE
# date -d @1263790800 "+%Y-%m-%d %T"
2010-01-18 00:00:00
Categories: General

Welcome to LINternUX blog

April 4th, 2009 No comments
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Welcome to LINternUX
This will be day that I posted my first blog.

Live long and prosper.

Categories: General