12-15-2010
ksh93 has time arithmetic so the time elapsed can be calculated and displayed in any units. time and timex tell you the elapsed time for a command. I wrote some simple C programs to give me other time bits: microsecond execution time, microsecond real time, absolute, start-relative or delta gregorian or fractional second time of each line of an output stream. Calendar/time stuff can be real neat. Hint: if you start your personal epoch after a leap day, like on March 1, 1968, the leap day is automatically calculated as the left over days after you subtract the full leap sets, years, months 3-12, 1 from the time. Handily, 2000 yas a leap year, so simple leap logic works until 2100-02-28!
10 More Discussions You Might Find Interesting
1. Programming
I am trying to display the amount of time that it took for a command to run. I'm assuming that i have the correct code:
...
else
{
printf("I am a child process and my pid is %d\n", getpid());
cout<<"Parameters are: "<<endl;
for... (5 Replies)
Discussion started by: jj1814
5 Replies
2. Shell Programming and Scripting
I'm using the Bourne shell and trying to write a script that will add all the time that any particular user has been on the network for.
I've used last-h | grep "username" | cut -c 58-62 to get the times.
Then I wrote a script that takes the time and converts it into just minutes.
Now I... (1 Reply)
Discussion started by: jrdnoland1
1 Replies
3. Shell Programming and Scripting
I'm looking for the cleanest way to calculate the time elapsed between two times in KSH. In minutes or in hours and minutes if it has been longer than 59 minutes.
Here are some random examples:
Example result: 25 Minutes
or
Example result: 1 Hour and 25 Minutes
Example time format:
... (5 Replies)
Discussion started by: sysera
5 Replies
4. Shell Programming and Scripting
Hi there,
How to calculate the elapsed time in minutes for a particular job run under unix.
I tried the following
$ ps -efo user,pid,etime,comm,args | grep myscript | grep -v grep | awk -F" " '{print $3}'
OUTPUT:
01:02:49
I need to get this output in minutes.
Can someone help me... (1 Reply)
Discussion started by: karthickrn
1 Replies
5. Shell Programming and Scripting
Hi All,
I have 2 variables like SDATE and EDATE.
Now for example i ll give you values for the above 2 variables.
SDATE=11/08/09 11:22
EDATE=11/09/09 22:33
the values of the above variables are represented like this>>>>>> mm/dd/yy hh:mm Now I want to evaluate total time elapsed... (3 Replies)
Discussion started by: smarty86
3 Replies
6. Shell Programming and Scripting
I am trying to get the ellapsed time in seconds in the body of the awk script. I use unix date to get the time. It works in BEGIN {} but not in the body {} of awk. Any ideas?
$ cat a
BEGIN {
"date +%s" | getline x
print x
}
{
"date +%s" | getline y
print y
}
$ echo "one line" |... (3 Replies)
Discussion started by: arturas123
3 Replies
7. Shell Programming and Scripting
Hi
I want to know if there is anyway I can find out how long it has been since I started my script or total time it has been since my script is executing.
Idea here is I want to check if my script is taking more than 30minutes to execute I want to kill that process.
Thanks in advance. (1 Reply)
Discussion started by: dashing201
1 Replies
8. Shell Programming and Scripting
I'm extracting two time & date values from a log file, and I need a way to calculate the elapsed time between the two. The values are in this format:
Feb 12 10:53:15
Feb 12 10:59:57
The difference is 6 minutes and 42 seconds
Does anyone know if there is a way to do this? I've seen lots of... (4 Replies)
Discussion started by: peterv6
4 Replies
9. Shell Programming and Scripting
Hi,
I am unable to Difference between two time stamps in Linux and display the total elapsed time .
Source date: Aug 15, 2012 02:00:03
Target date: Aug 14, 2012 18:00:03
# based on the forums I am using the below function. Converted dates into this format
Src_dt=20120814180003... (7 Replies)
Discussion started by: onesuri
7 Replies
10. UNIX for Advanced & Expert Users
What is the equivalent command of the below linux command would be in hp-ux
UNIX95=1 ps -eo pid,start,stime,command
Thanks a lot, (1 Reply)
Discussion started by: rveri
1 Replies
LEARN ABOUT OPENDARWIN
tcl_gettime
Tcl_GetTime(3) Tcl Library Procedures Tcl_GetTime(3)
__________________________________________________________________________________________________________________________________________________
NAME
Tcl_GetTime - get date and time
SYNOPSIS
#include <tcl.h>
Tcl_GetTime( timePtr )
ARGUMENTS
Tcl_Time * timePtr (out) Points to memory in which to store the date and time information.
_________________________________________________________________
DESCRIPTION
The Tcl_GetTime function retrieves the current time as a Tcl_Time structure in memory the caller provides. This structure has the follow-
ing definition:
typedef struct Tcl_Time {
long sec;
long usec;
} Tcl_Time;
On return, the sec member of the structure is filled in with the number of seconds that have elapsed since the epoch: the epoch is the
point in time of 00:00 UTC, 1 January 1970. This number does not count leap seconds - an interval of one day advances it by 86400 seconds
regardless of whether a leap second has been inserted.
The usec member of the structure is filled in with the number of microseconds that have elapsed since the start of the second designated by
sec. The Tcl library makes every effort to keep this number as precise as possible, subject to the limitations of the computer system. On
multiprocessor variants of Windows, this number may be limited to the 10- or 20-ms granularity of the system clock. (On single-processor
Windows systems, the usec field is derived from a performance counter and is highly precise.)
SEE ALSO
clock
KEYWORDS
date, time
Tcl 8.4 Tcl_GetTime(3)