It depends on what date utility you're using. If you're on a system where the desciprtion of the -d option on the date man page is something like:
or if there is no -d option, you need to use one of the methods on the web site I referred you to in an earlier message in this thread. If you're on a system where the date man page description is something like:
Then you can use:
to get the time in seconds for the given dates specifed by having $value set to the second field on the two lines you're talking about and then convert the seconds since the Epoch to days since the Epoch and subtract. You can use "+%a" to get the abbreviated weekday name corresponding to the given dates.
Neither -d nor +%s are defined by the standards, so any use of either of these is not portable between different systems.
Hi,
I need some help figuring this out, I think it can be done using awk but I don't know how.
So, I want to take two input files, subtract some columns with each other and then output to a new results file.
InFile1.txt
AAA 100 200 BBB
CCC 300 400 DDD
InFile2.txt
AAA 50 60 BBB
CCC 70... (7 Replies)
I am trying to find out the number of days between the current date and user defined date.
I took reference from here for the date2jd() function.
Modified the function according to my requirement. But its not working properly.
Original code from here is working fine.
#!/bin/sh... (1 Reply)
Hi,
I want to subtract a number from all columns except the first column. I have a number of files each having different columns around 60/70. How to do that in awk or any other command?
Thanks
Input
Col 1 Col 2 Col3 - - - - Col55
1 .0123 .098 - - - 0.6728
2 - -... (3 Replies)
I have a CSV file in the below format.
while generating CSV file from excel sheet , date in excel sheet(Format :Mon 8/28/2012) got converted into the below format with numbers 41148,41149 so on.
Could anyone please let me know how to the convert the numbers(41148,41149 so on.) to its actual... (2 Replies)
Hi,
Can you please let me know code for the below (in korn shell)
a) Subtract month(s) from given date
b) Subtract day(s) from give date
c) Subtract month(s) from given timestamp
d) Subtract day(s) from give timestamp (1 Reply)
Hi,
I have 2 files in below formats
File1_Stored.txt
ABC:100, 83
ABC:84, 53
ABC:14, 1222And
File2_Stored.txt
ABC:100 , 83
ABC:84 , 1553
ABC:524 , 2626I am trying to get the 3rd file in below format. So, whenever difference is 0 it shouldn't appear but if the difference is not 0 then... (2 Replies)
Hi all,
I have been researching to obtain SSL certification expiry for most of our webistes. For some cases, some hosts where not directly accessible so i finally got a solution working with curl using my proxy. This lists the expiry date which i'm finally looking for.
# curl --proxy... (4 Replies)
current date command runs well
awk -v t="$(date +%Y-%m-%d)" -F "'" '$1 < t' myname.dat
subtract 30 days fails
awk -v t="$(date --date="-30days" +%Y-%m-%d)" -F "'" '$1 < t' myname.dat
awk command in hp unix subtract 30 days automatically from current date without date illegal option error... (20 Replies)
Discussion started by: kmarcus
20 Replies
LEARN ABOUT HPUX
gettimeofda
gettimeofday(2) System Calls Manual gettimeofday(2)NAME
gettimeofday - get the date and time
SYNOPSIS DESCRIPTION
The function obtains the current time, expressed as seconds and microseconds since Epoch, and stores it in the structure pointed to by tp.
The resolution of the system clock is one microsecond.
PARAMETERS
Programs should use this time zone information only in the absence of the environment variable.
tp A pointer to a structure in which the current time is returned.
The structure includes the following members:
tzp If this parameter is not a null pointer, it is interpreted as a pointer to a structure under HP-UX. The structure has the following
fields:
tz_minuteswest The number of minutes that the local time zone is west of Coordinated Universal Time (UTC) or Epoch.
tz_dsttime A flag that, if nonzero, indicates that Daylight Savings Time (DST) applies locally during the appropriate part of the
year.
RETURN VALUE
returns the following values under HP-UX:
Successful completion.
Failure.
is set to indicate the error.
ERRORS
If fails, is set to the following value under HP-UX:
[EFAULT] An argument address referenced invalid memory.
EXAMPLES
The following HP-UX example calls twice. It then computes the lapsed time between the calls in seconds and microseconds and stores the
result in a timeval structure:
WARNINGS
Relying on a granularity of one microsecond may result in code that is not portable to other platforms.
AUTHOR
was developed by the University of California, Berkeley, and HP.
SEE ALSO date(1), ftime(2), settimeofda(2), stime(2), time(2), ctime(3C).
gettimeofday(2)