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Top Forums Shell Programming and Scripting What do this Julian Date Syntax explains about? Post 302524047 by baraghun on Saturday 21st of May 2011 12:00:13 AM
Old 05-21-2011
What do this Julian Date Syntax explains about?

I want to know, what exactly this Julian Date Function is all about?

Code:
#!/usr/bin/ksh

#Script That notify the User Expiration in Servers

 

function juliandate {

day=$1

month=$2

year=$3

 ((standard_jd = day - 32075 + 1461 * (year + 4800 - (14 - month)/12)/4 + 367 * (month - 2 + (14 - month)/12*12)/12 - 3 * ((year + 4900 - (14 - month)/12)/100)/4))

 ((jd = standard_jd-2400001))

return $jd

}

 

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shells(4)							   File Formats 							 shells(4)

NAME
shells - shell database SYNOPSIS
/etc/shells DESCRIPTION
The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser- shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root. A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by the routines which search the file. Blank lines are also ignored. The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/ksh93, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/ksh93, /usr/bin/pfcsh, /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh, and /usr/sfw/bin/zsh. /etc/shells overrides the default list. Invalid shells in /etc/shells could cause unexpected behavior, such as being unable to log in by way of ftp(1). FILES
/etc/shells list of shells on system SEE ALSO
vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4) SunOS 5.11 20 Nov 2007 shells(4)
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