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create time sequence in bash

 
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Old 09-15-2010
create time sequence in bash
hi all,

hope someone can assist in this. I'm trying to make a sequence of time in bash so that the output prints the following;

1950-01-01
1950-02-01
1950-03-01
...
1999-11-01
1999-12-01

In R, i can issue the following command;

Code:
t1 <- ISOdate(1950,1,1,0,0,0)
t2 <- ISOdate(1999,12,1,0,0,0)
t3 <- seq(t1,t2,"month")

thanks.

---------- Post updated at 07:48 AM ---------- Previous update was at 07:25 AM ----------

i have found a solution to my previous post;

Code:
#!/bin/bash

yr=`seq 1950 1960`
mt=`seq 1 12`

for a in $yr; do
for i in $mt; do
 echo $a-$(printf "%02d" $i)-01
done
 echo ""
done

 
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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)