IBM in all its wisdom decided that on all date related returns on user inquiries would be seconds counting back to the epoch (00:00:00 Jan 1, 1970). So if I wanted to get the last time I logged into AIX I would get somthing like this; 1019680832. Is there a way to covert this to a date string that resembles this; Apr 24 2002 10:00am?
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Converting epoch date to date. 4
- Thread starter keltob
- Start date
The only way that I know of doing this is to write a C program to do the conversion. The one that I use is listed below:
#include <stdio.h>
#include <time.h>
void main(int argc, char *argv[])
{
if (argc != 2) {
fprintf(stderr, "Usage: %s int\n", *argv);
exit(1);
}
printf("%s",ctime( (time_t *)argv[1] ));
}
Regards,
Chuck
#include <stdio.h>
#include <time.h>
void main(int argc, char *argv[])
{
if (argc != 2) {
fprintf(stderr, "Usage: %s int\n", *argv);
exit(1);
}
printf("%s",ctime( (time_t *)argv[1] ));
}
Regards,
Chuck
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2
- #6
And on another note - it was not IBM that created the epoch at Jan, 1970 - it was Bell Labs, the original writers of UNIX. They chose the date of the epoch. All UNIXes have the same start as the epoch because in reality they all have the same common ancestor.
Bill.
Bill.
Cool, Bill. More info, if anyone is interested, from The New Hacker's Dictionary:
Unix /yoo'niks/ n.
[In the authors' words, "A weak pun on Multics"; very early on it was `UNICS'] (also `UNIX') An interactive time-sharing system invented in 1969 by Ken Thompson after Bell Labs left the Multics project, originally so he could play games on his scavenged PDP-7. Dennis Ritchie, the inventor of C, is considered a co-author of the system. The turning point in Unix's history came when it was reimplemented almost entirely in C during 1972-1974, making it the first source-portable OS. Unix subsequently underwent mutations and expansions at the hands of many different people, resulting in a uniquely flexible and developer-friendly environment. By 1991, Unix had become the most widely used multiuser general-purpose operating system in the world - and since 1996 the variant called Linux has been at the cutting edge of the open source movement. Many people consider the success of Unix the most important victory yet of hackerdom over industry opposition (but see Unix weenie and Unix conspiracy for an opposing point of view). See Version 7, BSD, Linux.
Unix /yoo'niks/ n.
[In the authors' words, "A weak pun on Multics"; very early on it was `UNICS'] (also `UNIX') An interactive time-sharing system invented in 1969 by Ken Thompson after Bell Labs left the Multics project, originally so he could play games on his scavenged PDP-7. Dennis Ritchie, the inventor of C, is considered a co-author of the system. The turning point in Unix's history came when it was reimplemented almost entirely in C during 1972-1974, making it the first source-portable OS. Unix subsequently underwent mutations and expansions at the hands of many different people, resulting in a uniquely flexible and developer-friendly environment. By 1991, Unix had become the most widely used multiuser general-purpose operating system in the world - and since 1996 the variant called Linux has been at the cutting edge of the open source movement. Many people consider the success of Unix the most important victory yet of hackerdom over industry opposition (but see Unix weenie and Unix conspiracy for an opposing point of view). See Version 7, BSD, Linux.
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2
- #9
Einstein47
Programmer
Here is an extension of this discussion. I have been working on this for 2 weeks, and finally came up with something functional.
This script reports the last time each user logged on, in people readable format. Enjoy:
If I knew perl better, this script would be cleaner (I think). Einstein47
(Love is like PI - natural, irrational, endless, and very important.)
This script reports the last time each user logged on, in people readable format. Enjoy:
Code:
#! /bin/ksh
lsuser -c -a time_last_login ALL | egrep -v "^#" > user_last_login.txt
echo "\n Last Login Datetime User"
awk -F":" '{ if($2 != "") {print $0} }' user_last_login.txt | while read line;do
loginuser=`echo $line | cut -d":" -f1`
logintime=`echo $line | cut -d":" -f2`
perl -we "print scalar localtime $logintime"
echo " $loginuser"
doneIf I knew perl better, this script would be cleaner (I think). Einstein47
(Love is like PI - natural, irrational, endless, and very important.)
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