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Full Discussion: compare date of files on different nodes
Top Forums UNIX for Advanced & Expert Users compare date of files on different nodes Post 17234 by Perderabo on Tuesday 12th of March 2002 01:11:52 PM
Old 03-12-2002
There are several problems with doing this via ls. The first is that ls switches formats for old files add shows just the year. All we can do if a case like that is guess as to time. And if it is showing the time, you can just assume the year is the current year because files dated late last year will not have switched formats to show the year. And Solaris adds a problem in that it allows long user names and group names but if you them, the fields in ls overflow and run together.

Here is a script that does the best that can be done under the circumstances:
Code:
#! /usr/bin/ksh

file=$1

set +A  ls  -  $(ls -lL $file)
Jan=01; Feb=02; Mar=03; Apr=04; May=05; Jun=06; 
Jul=07; Aug=08; Sep=09; Oct=10; Nov=11; Dec=12;

eval month=\$${ls[${#ls[*]} - 4]}
if [[ ${ls[${#ls[*]} - 2]} = *:* ]] ; then
	year=$(date +%Y)
	thismonth=$(date +%m)
	((thismonth < month)) && ((year=year-1))
	time=${ls[${#ls[*]} - 2]}
else
	year=${ls[${#ls[*]} - 2]}
	time=00:00
fi

echo ${year}${month}${day}${time%%???}${time##???}
exit 0

 

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LEARN ABOUT LINUX

sttime

sttime(3)						    ShapeTools Toolkit Library							 sttime(3)

NAME

       stMktime, stWriteTime - date and time handling

SYNOPSIS

       #include <config.h>
       #include <sttk.h.h>

       time_tstMktime (char *string);

       char*stWriteTime (time_t date);

DESCRIPTION

       stMktime scans the given string and tries to read a date and time from it. It understands various formats of date strings. The following is
       a list of all valid formats, optional parts in brackets.

       [Tue] Jan 5[,] [19]93
		     This includes the standard asctime(3) format.

       Jan 5	     With no year given, the year defaults to the current year.

       [19]93/01/05  This notation requires month and day represented by exactly two digits.

       5.1.[19]93    This is the usual German notation.

       5.1.	     German notation referencing the current year.

       A certain time, given together with the date must always have the following form.

       hours:minutes[:seconds]
		       Each of the fields must be an integer value within the proper range (hours: 0-23, minutes and seconds: 0-59). Values  below
		       10 may be written as one digit numbers.

       The  time  value  may be placed anywhere in the date string: at the beginning, at the end, or somewhere in the middle. Any amount of white-
       space may be given between a field of the time value and the separating colon. The time is always considered to be local time.

       stWriteTime generates a time string similar to asctime(3) from its date argument.

SEE ALSO

       asctime(3)

BUGS

       Time Zone Names within the time string (like `MET') are not handled properly. In most cases they will cause a failure.

sttk-1.7						     Thu Jun 24 17:43:35 1993							 sttime(3)
All times are GMT -4. The time now is 02:27 PM.
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