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1. Shell Programming and Scripting
Hi,
I'm looking for a way to do a simple math calc during a shell script as a means of logging how long a particular task takes.
For example...
STARTTIME=whenever this script starts
./path/to/command.sh >>logfile.log
TOTALTIME=<time at this stage of the script after above command... (7 Replies)
Discussion started by: nbsparks
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2. Shell Programming and Scripting
Hi ,
Here is the smaller version of the problem.
Working individually as command
************************>echo $SHELL
/bin/bash
************************>TO_DAY=`date`
************************>echo $TO_DAY
Tue Jul 16 02:28:31 EDT 2013
************************>
Not working when... (5 Replies)
Discussion started by: Anupam_Halder
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3. Shell Programming and Scripting
There is a closed Thread: <url>Here will be the url to the original post once I have 5 posts in this forum...</url>
But a small bug had found his way into this very cool and simple code.
#!/bin/bash date2stamp () { date --utc --date "$1" +%s } stamp2date (){ date --utc --date... (2 Replies)
Discussion started by: frood
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4. Shell Programming and Scripting
Hello all!
This is my first post and I'm very new to programming. I would like help creating a simple perl or bash script that I will be using in my work as a junior bioinformatician.
Essentially, I would like to take a tab-delimted or .csv text with 3 columns and write them to a "3D" matrix:
... (16 Replies)
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5. Shell Programming and Scripting
Hi Gurus,
Please help in this shell script.
x=000
y=`expr $x + 1`
echo $y
which gives me the value as 1
How can i get the value as 001 in this shell script. As i am new to scripting stuck up here.
Requesting here help here (2 Replies)
Discussion started by: nmadhuhb
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6. Shell Programming and Scripting
Hi all,
i have used the search already before someone shouts at me and i have seen the 'datecalc' program but this is not working correctly for me in the shell and environment i am using.
I am using solaris 10 and bourne shell.
I have two dates '07-04-2009' and '05-05-2009'. I just need to... (2 Replies)
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7. Shell Programming and Scripting
Hi guys,
I have some embedded perl within my shell script to get me the modification time/date of a file which returns me the following string:
Fri May 1 09:52:58 2009
I have managed to get the bits i need such as 1-May-2009, but what i would prefer is 010509 instead...
Here is my... (4 Replies)
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8. Shell Programming and Scripting
i have a script that grep for today date
a=`date +"%F"`--------greps current/today date
wat if suppose i want to grep a date for yesterday...
how to do that using the above format: i,e 2008-01-20 (4 Replies)
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9. HP-UX
Hi all!
I'm working on a HPUX system, and I was wondering if there is a simple way to convert a date from seconds (since 1970) to a normal date.
Thanks (2 Replies)
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10. Tips and Tutorials
The GNU date command in full of goodies but not when it comes to calculate a date or time difference. Here is what I came up with after looking to more than one solution.
Code should be self explaining.
#!/bin/bash
date2stamp () {
date --utc --date "$1" +%s
}
stamp2date (){
... (0 Replies)
Discussion started by: ripat
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STRFTIME(3) BSD Library Functions Manual STRFTIME(3)
NAME
strftime, strftime_l -- format date and time
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <time.h>
size_t
strftime(char *restrict s, size_t maxsize, const char *restrict format, const struct tm *restrict timeptr);
#include <time.h>
#include <xlocale.h>
size_t
strftime_l(char *restrict s, size_t maxsize, const char *restrict format, const struct tm *restrict timeptr, locale_t loc);
DESCRIPTION
The strftime() function formats the information from timeptr into the buffer s, according to the string pointed to by format.
The format string consists of zero or more conversion specifications and ordinary characters. All ordinary characters are copied directly
into the buffer. A conversion specification consists of a percent sign ``'%''' and one other character.
No more than maxsize characters will be placed into the array. If the total number of resulting characters, including the terminating NUL
character, is not more than maxsize, strftime() returns the number of characters in the array, not counting the terminating NUL. Otherwise,
zero is returned and the buffer contents are indeterminate.
Although the strftime() function uses the current locale, the strftime_l() function may be passed a locale directly. See xlocale(3) for more
information.
The conversion specifications are copied to the buffer after expansion as follows:-
%A is replaced by national representation of the full weekday name.
%a is replaced by national representation of the abbreviated weekday name.
%B is replaced by national representation of the full month name.
%b is replaced by national representation of the abbreviated month name.
%C is replaced by (year / 100) as decimal number; single digits are preceded by a zero.
%c is replaced by national representation of time and date.
%D is equivalent to ``%m/%d/%y''.
%d is replaced by the day of the month as a decimal number (01-31).
%E* %O*
POSIX locale extensions. The sequences %Ec %EC %Ex %EX %Ey %EY %Od %Oe %OH %OI %Om %OM %OS %Ou %OU %OV %Ow %OW %Oy are supposed to
provide alternate representations.
Additionly %OB implemented to represent alternative months names (used standalone, without day mentioned).
%e is replaced by the day of month as a decimal number (1-31); single digits are preceded by a blank.
%F is equivalent to ``%Y-%m-%d''.
%G is replaced by a year as a decimal number with century. This year is the one that contains the greater part of the week (Monday as the
first day of the week).
%g is replaced by the same year as in ``%G'', but as a decimal number without century (00-99).
%H is replaced by the hour (24-hour clock) as a decimal number (00-23).
%h the same as %b.
%I is replaced by the hour (12-hour clock) as a decimal number (01-12).
%j is replaced by the day of the year as a decimal number (001-366).
%k is replaced by the hour (24-hour clock) as a decimal number (0-23); single digits are preceded by a blank.
%l is replaced by the hour (12-hour clock) as a decimal number (1-12); single digits are preceded by a blank.
%M is replaced by the minute as a decimal number (00-59).
%m is replaced by the month as a decimal number (01-12).
%n is replaced by a newline.
%O* the same as %E*.
%p is replaced by national representation of either "ante meridiem" or "post meridiem" as appropriate.
%R is equivalent to ``%H:%M''.
%r is equivalent to ``%I:%M:%S %p''.
%S is replaced by the second as a decimal number (00-60).
%s is replaced by the number of seconds since the Epoch, UTC (see mktime(3)).
%T is equivalent to ``%H:%M:%S''.
%t is replaced by a tab.
%U is replaced by the week number of the year (Sunday as the first day of the week) as a decimal number (00-53).
%u is replaced by the weekday (Monday as the first day of the week) as a decimal number (1-7).
%V is replaced by the week number of the year (Monday as the first day of the week) as a decimal number (01-53). If the week containing
January 1 has four or more days in the new year, then it is week 1; otherwise it is the last week of the previous year, and the next
week is week 1.
%v is equivalent to ``%e-%b-%Y''.
%W is replaced by the week number of the year (Monday as the first day of the week) as a decimal number (00-53).
%w is replaced by the weekday (Sunday as the first day of the week) as a decimal number (0-6).
%X is replaced by national representation of the time.
%x is replaced by national representation of the date.
%Y is replaced by the year with century as a decimal number.
%y is replaced by the year without century as a decimal number (00-99).
%Z is replaced by the time zone name.
%z is replaced by the time zone offset from UTC; a leading plus sign stands for east of UTC, a minus sign for west of UTC, hours and min-
utes follow with two digits each and no delimiter between them (common form for RFC 822 date headers).
%+ is replaced by national representation of the date and time (the format is similar to that produced by date(1)).
%% is replaced by '%'.
SEE ALSO
date(1), printf(1), ctime(3), printf(3), strptime(3), wcsftime(3), xlocale(3)
STANDARDS
The strftime() function conforms to ISO/IEC 9899:1990 (``ISO C90'') with a lot of extensions including '''', '%E*', '%e', '%G', '%g', '%h',
'%k', '%l', '%n', '%O*', '%R', '%r', '%s', '%T', '%t', '%u', '%V', '%z', and '%+'.
The peculiar week number and year in the replacements of '%G', '%g', and '%V' are defined in ISO 8601: 1988.
BUGS
There is no conversion specification for the phase of the moon.
The strftime() function does not correctly handle multibyte characters in the format argument.
BSD
January 4, 2003 BSD
