Shell Programming and Scripting

Thanks to all of you for your fast Response

1.) code from Vgersh99 it works perfect

Code:

nawk 'BEGIN {srand();time=srand();print time}' </dev/null

2.) code from RudiC will give me always 1 as result maybe because my AIX is to old

Code:

 awk 'BEGIN {print srand()}'

3.) code from Corona668 work again perfect

Code:

 perl -e 'print time(), "\n";'

4.) Bakunin yes the %T Option available for the date Format on my very old AIX , but i need the time in seconds, therfore the solution i got from vgersh99 and Corona688 are fine

Thanks a lot for your help and Support

With Kind regards

A bit cleaner

Code:

perl -le 'print time'

Hi Aia,

will try your code

Thanks a lot

I don't know how recent the ksh93 is on AIX, but you could also try:

Code:

printf '%(%s)T\n' now

when running ksh93. It at least works on ksh version 93u+ 2012-08-01.

Actually this is a solution:

Code:

date +'%T' | IFS=':' read hr min sec
time=$(( hr * 3600 + min * 60 + sec ))

This removes the necessity to use an external program (nawk, perl) and makes only use of standard (ksh-)features. Anyways, i am glad you have a solution that works.

I hope this helps.

bakunin

Hi bakunin,
The date +%T output gives you hours, minutes, and seconds (on a 24 hour clock) since midnight in the current timezone. The desired date +%s (which is not available on many UNIX systems, including AIX) gives you seconds since the Epoch (midnight at the start of January 1, 1970 UCT). You need a lot more information than what is provided by the current 24 hour clock time to convert that output to seconds since the Epoch.

I am well aware of the difference between epoch time and seconds since midnight. I was (see post #1) - and perhaps erroneously so - convinced that thread-o/p was looking for the seconds since midnight ("time in seconds"), not the epoch (from which the seconds since midnight can be derived too, with some effort). So i offered this as a perceived shortcut.

date +'%s' is, btw., available on (a recent) AIX, but probably not on AIX 4.3.2 (which, IIRC, should be around 1997 or 1998).

bakunin