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Full Discussion: Error while executing the below script
Top Forums Shell Programming and Scripting Error while executing the below script Post 302369797 by Corona688 on Monday 9th of November 2009 03:43:21 PM
Old 11-09-2009
You see those places where you're using %s and -r with date? As already said, you can't do that without GNU date. That's what you need to fix -- or rather, replace, since it's not broken as much as using programs you don't have.

The lack of good date manipulation in shell scripting's always bothered me, particularly since the GNU options are so obvious you'd think they'd be everywhere. But there's a few tricks. For instance the stat command can print out statistics on a file, including mtime in epoch seconds.

To get the current epoch time of a file in seconds, you can do:

Code:
EPOCH=`stat -c '%Y' "${FILE}"`

To get the current epoch time, you could use the above on a newly created file:

Code:
FILE=`mktemp`
EPOCH=`stat -c '%Y' ${FILE}`
rm "${FILE}"

Last edited by Corona688; 11-09-2009 at 05:10 PM.. Reason: added missing backtick
 

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LEARN ABOUT ULTRIX

getdate

GETDATE(1)							   User Commands							GETDATE(1)

NAME

       getdate - AME

SYNOPSIS

       [-dv][-n dec][-f format] [ra dec sys] itype2otype [date and/or time]

DESCRIPTION

       Convert date and time between various formats

	      [-dv][-n dec][-f format] itype2otype @file

	      itype: nfd=ISOFITS fd=FITS, dt=yyyy.mmdd, hr=hh:mm:ss, deg=dd:mm:ss

	      jd=Julian  Date,	mjd=Modified Julian Date hjd=Heliocentric Julian Date, mhjd=Modified HJD ep=epoch, epj=Julian epoch, epb=Besselian
	      epoch lt=local time, ut=UT, ts=seconds since 1950-01-01 now=current time, ang=fractional degrees

	      otype: fd=FITS, dt=yyyy.mmdd, jd=Julian Date, mjd=Modified Julian Date

	      hjd=Heliocentric Julian Date, mhjd=Modified HJD  hr=hh:mm:ss,  deg=dd:mm:ss,  ang=fractional  degrees  ep=epoch,	epj=Julian  epoch,
	      epb=Besselian epoch ts=seconds since 1950-01-01, tsu=Unix sec, tsi=IRAF sec gst=Greenwich Sidereal Time, lst=Local Sidereal Time

	      @file: First one or two columns are in itype format ra dec sys:  Need for Heliocentric conversions

       -a: Append date to input file, if there is one

       -d: Print date without time

       -e: Print output as ET/TDT/TT converting from UT

       -f: Format for output number (C printf)

       -h hours: Longitude in hours, west positive

       -l degrees: Longitude in degrees, west positive

       -n: Number of decimal places in sec, epoch, JD

       -t: Print time without date

       -v: Verbose

getdate 3.8.4							     June 2012								GETDATE(1)
All times are GMT -4. The time now is 02:20 AM.
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