01-08-2014
Well, what is your system? does it have mktime and strftime?
The first thing that comes to mind is upgrading your version of mawk.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Strange behaviour of the strftime() function from gawk (3.1.5):
$ awk 'BEGIN{print strftime("%T", 3600)}'
> 02:00:00
$ awk 'BEGIN{print strftime("%T", 0)}'
> 01:00:00
Obviously something with DST but I can not figure out why? To me 3600 epoch seconds remains 01:00, DST or not.
From... (2 Replies)
Discussion started by: ripat
2 Replies
2. UNIX for Dummies Questions & Answers
I have two files and would like a report of where they match.
Example of file1:
1 1 1
2 2 2
13 14 15
4 4 4
15 16 17
100 102 1004
56 57 890
Example of file2:
2 2 2
16 10 11
45 22 35
13 14 15
1001 1002 3456
100 102 1004 (1 Reply)
Discussion started by: kenneth.mcbride
1 Replies
3. Shell Programming and Scripting
As Brendan O'Conner writes in this blog, mawk is near 8 times faster than gawk, so I am going to give mawk a go, but I got errors when trying to print the length of an array in mawk using length() function, is it not supported in mawk? or there's another way to get the length of an array in mawk?
... (3 Replies)
Discussion started by: kevintse
3 Replies
4. Programming
HI,
i wish to convert a millsec value to a readable string format.
the one option is to use strftime.
However this is a bit costly (1-5 micros).
is there a a faster way to do so with just string manipulation
(Note i have the date object which has the time details but wish o avoid strftime) (2 Replies)
Discussion started by: wojtyla
2 Replies
5. Shell Programming and Scripting
Hi,
I have a line which has n number of words with separated by space.
I wanted to make each word as a separate line.
for example,
i have a file that has line like
i am a good boy
i want the output like,
i
am
a
good (8 Replies)
Discussion started by: rbalaj16
8 Replies
6. UNIX for Dummies Questions & Answers
Hello, I am looking to make a text based game, that runs in the command window, or a window similar. I will only need to use 1 window.
I read somewhere that there is libraries for this kind of thing? But I can't remember the name of them.. Can anyone point me in a direction?
I will be... (2 Replies)
Discussion started by: murphy
2 Replies
7. Shell Programming and Scripting
Hi,
I want to calculate diff b/w these starttime and endtime with use of mktime. I need response time in milisecond. I am using mktime to get these times. last three digits are in milisecond
Starttime 2013-04-03 08:54:19,989
End time 2013-04-03 08:54:39,389 (9 Replies)
Discussion started by: random_thoughts
9 Replies
8. Shell Programming and Scripting
cat file
41285.000034722223 41285.000567129631
41285.000069444446 41285.001122685186
41285.000092592592 41285.001620370371
41285.000138888892 41285.00340277778
41285.000185185185 41285.000405092593
41285.000196759262 41285.000856481478
41285.000208333331 41285.000717592593... (5 Replies)
Discussion started by: phpshell
5 Replies
9. UNIX for Advanced & Expert Users
So, I do some file processing that generates very large numbers, such as total amount GETted from a busy web cluster in a month, etc. Mawk is awesome-- fast and easy. It's awk! But, there's a fatal flaw that I'd like to overcome. Apparently, %d maxes out at 2147483647. Here's sample output,... (11 Replies)
Discussion started by: treesloth
11 Replies
10. Shell Programming and Scripting
I'm trying to use AWK to filter on some dates in a field by converting them to Unix Time.
mktime(strftime(format,"6-FEB-2013 08:50:03.841")What is the proper format for my date strings as they appear in my database?
My first thought is %d-%b-%Y %H:%M:%Sbut I see the following issues:
%d is... (3 Replies)
Discussion started by: Michael Stora
3 Replies
TZSET(P) POSIX Programmer's Manual TZSET(P)
NAME
daylight, timezone, tzname, tzset - set timezone conversion information
SYNOPSIS
#include <time.h>
extern int daylight;
extern long timezone;
extern char *tzname[2];
void tzset(void);
DESCRIPTION
The tzset() function shall use the value of the environment variable TZ to set time conversion information used by ctime() , localtime() ,
mktime() , and strftime() . If TZ is absent from the environment, implementation-defined default timezone information shall be used.
The tzset() function shall set the external variable tzname as follows:
tzname[0] = "std";
tzname[1] = "dst";
where std and dst are as described in the Base Definitions volume of IEEE Std 1003.1-2001, Chapter 8, Environment Variables.
The tzset() function also shall set the external variable daylight to 0 if Daylight Savings Time conversions should never be applied for
the timezone in use; otherwise, non-zero. The external variable timezone shall be set to the difference, in seconds, between Coordinated
Universal Time (UTC) and local standard time.
RETURN VALUE
The tzset() function shall not return a value.
ERRORS
No errors are defined.
The following sections are informative.
EXAMPLES
Example TZ variables and their timezone differences are given in the table below:
TZ timezone
EST5EDT 5*60*60
GMT0 0*60*60
JST-9 -9*60*60
MET-1MEST -1*60*60
MST7MDT 7*60*60
PST8PDT 8*60*60
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
ctime() , localtime() , mktime() , strftime() , the Base Definitions volume of IEEE Std 1003.1-2001, Chapter 8, Environment Variables,
<time.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained
online at http://www.opengroup.org/unix/online.html .
IEEE
/The Open Group 2003 TZSET(P)