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Top Forums Shell Programming and Scripting how to calculate the time 10 mins ago?? unix Post 302453088 by funksen on Tuesday 14th of September 2010 04:27:38 AM
Old 09-14-2010
convert the time stamp to unix seconds, subtract 600 and reconvert it


from the wiki page of date:

Quote:
To show the time in seconds since 1970-01-01 (Unix epoch):

date +"%s" -d "Fri Apr 24 13:14:39 CDT 2009"
1240596879

To convert Unix epoch time (seconds since 1970-01-01) to a human readable format:

date -d "UTC 1970-01-01 1240596879 secs"
Fri Apr 24 13:14:39 CDT 2009

Or:

date -ud @1000000000
Sun Sep 9 01:46:40 UTC 2001
 

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PACEMAKER(8)						  System Administration Utilities					      PACEMAKER(8)

NAME
Pacemaker - Part of the Pacemaker cluster resource manager SYNOPSIS
iso8601 command [output modifier] DESCRIPTION
iso8601 - Display and parse ISO8601 dates and times OPTIONS
-?, --help This text -$, --version Version information -V, --verbose Increase debug output Commands: -n, --now Display the current date/time -d, --date=value Parse an ISO8601 date/time. Eg. '2005-01-20 00:30:00 +01:00' or '2005-040' -p, --period=value Parse an ISO8601 date/time with interval/period (wth start time). Eg. '2005-040/2005-043' -D, --duration=value Parse an ISO8601 date/time with duration (wth start time). Eg. '2005-040/P1M' -E, --expected=value Parse an ISO8601 date/time with duration (wth start time). Eg. '2005-040/P1M' Output Modifiers: -s, --seconds Show result as a seconds since 0000-001 00:00:00Z -S, --epoch Show result as a seconds since EPOCH (1970-001 00:00:00Z) -L, --local Show result as a 'local' date/time -O, --ordinal Show result as an 'ordinal' date/time -W, --week Show result as an 'calendar week' date/time For more information on the ISO8601 standard, see: http://en.wikipedia.org/wiki/ISO_8601 AUTHOR
Written by Andrew Beekhof REPORTING BUGS
Report bugs to pacemaker@oss.clusterlabs.org Pacemaker 1.1.10-29.el7 June 2014 PACEMAKER(8)
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