There is a closed Thread: <url>Here will be the url to the original post once I have 5 posts in this forum...</url>
But a small bug had found his way into this very cool and simple code.
Code:
#!/bin/bash date2stamp () { date --utc --date "$1" +%s } stamp2date (){ date --utc --date "1970-01-01 $1 sec" "+%Y-%m-%d %T" } dateDiff (){ case $1 in -s) sec=1; shift;; -m) sec=60; shift;; -h) sec=3600; shift;; -d) sec=86400; shift;; *) sec=86400;; esac dte1=$(date2stamp $1) dte2=$(date2stamp $2) diffSec=$((dte2-dte1)) if ((diffSec < 0)); then abs=-1; else abs=1; fi echo $((diffSec/sec*abs)) } # USAGE # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # convert a date into a UNIX timestamp stamp=$(date2stamp "2006-10-01 15:00") echo $stamp # from timestamp to date stamp2date $stamp # calculate the number of days between 2 dates # -s in sec. | -m in min. | -h in hours | -d in days (default) dateDiff -s "2006-10-01" "2006-10-32" dateDiff -m "2006-10-01" "2006-10-32" dateDiff -h "2006-10-01" "2006-10-32" dateDiff -d "2006-10-01" "2006-10-32" dateDiff "2006-10-01" "2006-10-32" # number of seconds between two times dateDiff -s "17:55" "23:15:07" dateDiff -m "17:55" "23:15:07" dateDiff -h "17:55" "23:15:07" # number of minutes from now until the end of the year dateDiff -m "now" "2006-12-31 24:00:00 CEST" # Other standard goodies from GNU date not too well documented in the man pages # assign a value to the variable dte for the examples below dte="2006-10-01 06:55:55" echo $dte # add 2 days, one hour and 5 sec to any date date --date "$dte 2 days 1 hour 5 sec" # substract from any date date --date "$dte 3 days 5 hours 10 sec ago" date --date "$dte -3 days -5 hours -10 sec" # or any mix of +/-. What will be the date in 3 months less 5 days date --date "now +3 months -5 days" # time conversions into ISO-8601 format (RFC-3339 internet recommended format) date --date "sun oct 1 5:45:02PM" +%FT%T%z date --iso-8601=seconds --date "sun oct 1 5:45:02PM" date --iso-8601=minutes # time conversions into RFC-822 format date --rfc-822 --date "sun oct 1 5:45:02PM"
The GNU date command in full of goodies but not when it comes to calculate a date or time difference. Here is what I came up with after looking to more than one solution.
Code should be self explaining.
#!/bin/bash
date2stamp () {
date --utc --date "$1" +%s
}
stamp2date (){
... (0 Replies)
Hi all!
I'm working on a HPUX system, and I was wondering if there is a simple way to convert a date from seconds (since 1970) to a normal date.
Thanks (2 Replies)
1. The problem statement, all variables and given/known data:
I have standard web server log file. It contains different columns (like IP address, request result code, request type etc) including a date column with the format .
I have developed a log analysis command line utility that displays... (1 Reply)
Hello all!
This is my first post and I'm very new to programming. I would like help creating a simple perl or bash script that I will be using in my work as a junior bioinformatician.
Essentially, I would like to take a tab-delimted or .csv text with 3 columns and write them to a "3D" matrix:
... (16 Replies)
Hi all,
I need a script to do some date/time conversion. It should take as an input a particular time. It should then generates a series of offsets, in both hour:minute form and number of milliseconds elapsed.
For 03:00, for example, it should give back 04:02:07 (3727000ms*) 05:04:14... (2 Replies)
I have a cluster of two Solaris server (veritas cluster). one working and the other is standby
I am going to change the date on them , and am looking for a secure solution as it is giving an important service.
my opinion is that the active one doesn't need to be restarted (if I don't change the... (1 Reply)
I'm looking for a way to have the "date" command output the date in a specific format.
I'm not familiar with the different ways to use the date command at all. i read up on it, but i dont get how to manipulate it.
i know that i can get the date format to give me a format like:
2012-10-13... (6 Replies)
Hi ,
I need one help to do some complex calculation in shell script.
here is what i need to do:-
a=2
b=2
c=2
d=2
result=a+(b/(20*c))+(c/(10*d))
is there any thing special there so that i can group intermdiate results.
Please help me if you have any idea. (4 Replies)
Hi,
I'm looking for a way to do a simple math calc during a shell script as a means of logging how long a particular task takes.
For example...
STARTTIME=whenever this script starts
./path/to/command.sh >>logfile.log
TOTALTIME=<time at this stage of the script after above command... (7 Replies)
Hi Again,
I have a file that contains date and time for the past 2 hours. What i need is add missing date and time in a file.
INPUT
2016-01-13 01:33 10
2016-01-13 01:31 10
2016-01-13 01:30 10
2016-01-13 01:29 10
2016-01-13 01:28 10
2016-01-13 01:27 10
2016-01-13 01:26 10
2016-01-13... (14 Replies)
02-28-2013
