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Top Forums Shell Programming and Scripting convert mmddyy date format to ccyyddd format?? Post 302090786 by anbu23 on Wednesday 27th of September 2006 01:06:48 PM
Old 09-27-2006
try this

Code:
scp
mm=`expr substr "$1" 1 2`
dd=`expr substr "$1" 3 2`
yyyy="20""`expr substr "$1" 5 2`"

ddd=`cal_days $yyyy $mm $dd`

echo "$yyyy$ddd"

Perl script
Code:
cal_days
#!/bin/perl
use Time::Local;
my $year=shift;
my $month=shift;
my $day=shift;
my $time = timelocal(0,0,23,$day,$month-1,$year-1900);
my $time1 = timelocal(0,0,0,1,0,$year-1900);
my $days = ( $time -$time1 ) / 86400;
printf("%.0f", $days);


Code:
$scp 092706
2006270

 

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shift(1)							   User Commands							  shift(1)

NAME
shift - shell built-in function to traverse either a shell's argument list or a list of field-separated words SYNOPSIS
sh shift [n] csh shift [variable] ksh * shift [n] DESCRIPTION
sh The positional parameters from $n+1 ... are renamed $1 ... . If n is not given, it is assumed to be 1. csh The components of argv, or variable, if supplied, are shifted to the left, discarding the first component. It is an error for the variable not to be set or to have a null value. ksh The positional parameters from $n+1 $n+1 ... are renamed $1 ..., default n is 1. The parameter n can be any arithmetic expression that evaluates to a non-negative number less than or equal to $#. On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways: 1. Variable assignment lists preceding the command remain in effect when the command completes. 2. I/O redirections are processed after variable assignments. 3. Errors cause a script that contains them to abort. 4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari- able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), ksh(1), sh(1), attributes(5) SunOS 5.10 15 Apr 1994 shift(1)
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