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Top Forums Shell Programming and Scripting if [ $NOWDATE -gt $STARTDATE ] , date comparison correct syntax? Post 302369351 by danpaluska on Saturday 7th of November 2009 04:53:08 PM
Old 11-07-2009
if [ $NOWDATE -gt $STARTDATE ] , date comparison correct syntax?

i've looked at a bunch of the date comparison threads on these boards but unfortunately not been able to figure this thing out yet. still confused by some of the way conditionals handle variables...

here is what i where i am now...

Code:
# a bunch of initializition steps are here ...
STARTDATE=`date +%Y%m%d`
 
while [ 1 ] # loop running all the time. 
do

NOWDATE=`date +%Y%m%d`

# if day changes then i want to reinitialize
if [ $NOWDATE -gt $STARTDATE ] 
then
# do all that initiallization again 
fi

# ... a bunch of other code in here

done

but that if statement doesn't work. any tips?

thanks,
dan
 

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fstrcoll(3)						     Library Functions Manual						       fstrcoll(3)

NAME
fstrcoll - fuzzy comparison of two strings using the current locale SYNOPSIS
#include <fstrcmp.h> #define FSTRCMP_IDENTICAL #define FSTRCMP_THRESHOLD #define FSTRCMP_ERROR double fstrcoll(const char *string1, const char *string2); DESCRIPTION
The strcoll() function compares the two strings sting1 and string2. The comparison is based on strings interpreted as appropriate for the program's current locale for category LC_CTYPE. RETURN VALUE
The fstrcoll function returns a floating point value between 0.0 and FSTRCMP_IDENTICAL. A value of 0.0 means the strings are utterly un- alike. A value of FSTRCMP_IDENTICAL means the strings are identical. A value of more than FSTRCMP_THRESHOLD (it lies between 0.0 and FSTRCMP_IDENTICAL) would be considered "similar" by most people. A value of FSTRCMP_ERROR (always negative) indicates a malloc(3) or mbstowcs(3) failure. SEE ALSO
fstrcmp(3) fuzzy comparison of two strings fstrcolli(3) fuzzy comparison of two strings using the current locale strcoll(3) compare two strings using the current locale mbstowcs(3) convert a multibyte string to a wide-character string COPYRIGHT
fstrcmp version 0.4 Copyright (C) 2009 Peter Miller Peter Miller <pmiller@opensource.org.au> The comparison code is derived from the fuzzy comparison functions in GNU Gettext 0.17. The GNU Gettext comparison functions were, in turn, derived from GNU Diff 2.7. Copyright (C) 1988-2009 Free Software Foundation fstrcoll(3)
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