Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Adding time to date time in UNIX shell scipting
Top Forums Shell Programming and Scripting Adding time to date time in UNIX shell scipting Post 302738875 by cfajohnson on Monday 3rd of December 2012 04:31:02 AM
Old 12-03-2012

Brad, the %s format to date is not standard. GNU and [Free|Net]BSD have it, other variants might not.

These bash functions I just wrote do time arithmetic:
Code:
time2seconds() #@ Calculate no. of seconds from [H]H:[M]M:[S]S result_var
{
  local s hours minutes seconds var IFS=:
  set -- $*
  hours=${1#0}
  minutes=${2#0}
  seconds=${3#0}
  var=${4:-_t2s}
  s=$(( hours * 3600 + minutes * 60 + seconds ))
  printf -v "$var" "%d" "$s"
}

seconds2time() #@ Convert number of seconds to [DAYS ]HH:MM:SS
{
  local s days hours minutes seconds var
  s=$1
  var=${2:-_s2t}
  seconds=$(( s % 60 ))
  hours=$(( s / 3600 ))
  minutes=$(( (s - hours * 3600) / 60 ))

  if [ $hours -gt 24 ]
  then
    days=$(( hours / 24 ))
    hours=$(( hours % 24 ))
  fi

  printf -v "$var" "%s%02d:%02d:%02d" ${days:+"$days "} "$hours" "$minutes" "$seconds"
}

addseconds() #@ To HH:MM:SS add SECS
{
  local time=$1 secs=$2
  time2seconds "$time"
  seconds2time "$(( _t2s + secs ))"
}

They can be combined with the date functions from The Dating Game to solve your problem.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

problem with displaying date and adding time

Hi, I have a log file with contents like 81.49.74.131 - - 81.49.74.131 - - 116.112.52.31 - - 116.112.52.31 - - I need an output like this 81.49.74.131 14/Sep/2008 Time duration: 00:06:00 116.112.52.31 15/Sep/2008 Time duration: 00:00:01 Please anyone suggest a script for this.... (1 Reply)
Discussion started by: FuncMx
1 Replies

2. UNIX for Dummies Questions & Answers

Adding date and time to a log file

Morning all Im hoping you can help me. We have a nice new oracle server :( and are needing to move some files around for EDI and BACS. The server runs windows but has an app called MKS toolkit installed which give unix commands. (Needed for the oracle stuff) I have had a go using dos commands... (2 Replies)
Discussion started by: ltodd2
2 Replies

3. Shell Programming and Scripting

Convert Epoch Time to Standard Date and Time & Vice Versa

Hi guys, I know that this topic has been discuss numerous times, and I have search the net and this forum for it. However, non able to address the problem I faced so far. I am on Solaris Platform and unable to install additional packages like the GNU date and gawk to make use of their... (5 Replies)
Discussion started by: DrivesMeCrazy
5 Replies

4. UNIX for Dummies Questions & Answers

Adding Date & time stamps to filename

I need to edit the file name with date and time while writing the script. please help. (1 Reply)
Discussion started by: manish.s
1 Replies

5. Shell Programming and Scripting

Adding date and time to file name

Hi All, i wanted to add date and time to the file names in the same directory so lets say a file in the directory is test.txt then after running the shell script it should be test-15-11-2010.txt. So I used the following script which works, #!/bin/bash thetime=`date +%Y-%m-%d--%H:%M:%S`... (7 Replies)
Discussion started by: cc_at_work
7 Replies

6. UNIX for Dummies Questions & Answers

Converting string date time to unix time in AWK

I'd like to convert a date string in the form of sun aug 19 09:03:10 EDT 2012, to unixtime timestamp using awk. I tried This is how each line of the file looks like, different date and time in this format Sun Aug 19 08:33:45 EDT 2012, user1(108.6.217.236) all: test on the 17th ... (2 Replies)
Discussion started by: bkkid
2 Replies

7. UNIX for Dummies Questions & Answers

Adding hours and minutes to current date (Only to date not to time)

Hi, I want to add some hours and minutes to the current date. For example, if the current date is "July 16, 2012 15:20", i want to add 5 hours 30 minutes to "July 16, 2012 00:00" not to "July 16, 2012 15:20". Please help. Thanks! (4 Replies)
Discussion started by: manojgarg
4 Replies

8. Solaris

modifying date and time and time zone on solaris 5.10 with (redundant server) veritas

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)
Discussion started by: barry1946
1 Replies

9. Shell Programming and Scripting

Adding Seconds to UNIX/Epoch-Time

Hello All, I have a Perl script I'm writing where I ask the user to enter a "start time" for something. The "$start_time" will be in the format of: # The Time CLI Option Can be in the format of: --start-time="1day" --start-time="2hours" --start-time="45min" ... (1 Reply)
Discussion started by: mrm5102
1 Replies

10. Shell Programming and Scripting

Date time difference in UNIX shell script

There are 2 dates, Tue Oct 1 13:40:19 2013 Sun Sept 30 10:26:23 2013 I have multiple dates like the above one. How do I calculate the date time difference and display in another column in Shell script. Please help. (3 Replies)
Discussion started by: tanmoysays
3 Replies

LEARN ABOUT CENTOS

iso8601

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)
All times are GMT -4. The time now is 08:44 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy