10-26-2007
Compare two dates using shell scripting
a=2007-05-10 (YYYY-DD-MM Format)
b=2007-06-10
These are the two given dates and I need to compare.
(First It should split the dates into YYYY,dd,mm)
The script should first compare years(2007 here).If both are same or if "a" is lesser than "b"(ie.suppose year in "a" is 2006),it should print correct.If "a"(ie. suppose year in a is 2008) is greater than b,then it should print error.Similarly for the dates(05 and 06).
No need to check for the months(10).
Regards,
Dave Nithis.
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LEARN ABOUT DEBIAN
atscanstatus
atprint(3) AtFS Toolkit Library atprint(3)
NAME
atWriteStatus, atWriteMode, atWriteDate, atWriteName, atScanStatus - print and scan special attribute values
SYNOPSIS
#include <atfs.h>
#include <atfstk.h>
char*atWriteStatus (Af_key *aso; int verbose);
char*atWriteMode (Af_key *aso);
char*atWriteDate (Af_key *aso, char *dateAttribute);
char*atWriteName (Af_key *aso, char *path);
int atScanStatus (char *statusStr);
DESCRIPTION
atWriteStatus returns a string representation of Asos AF_STATE attribute. With the verbose argument TRUE, atWriteStatus returns a long (8
character) status name. Otherwise, on FALSE, it returns a one character short representation. The result value is a statically defined
string in any case.
atWriteMode generates a ls -l(1) like (e.g. -rwxr-xr-x) string representation of the AF_MODE attribute. It returns its result in static
memory, which will be overwritten on subsequent calls.
atWriteDate produces a date string from the given dateAttribute to be used for ls -l(1) like output (e.g. Jan 8 11:07 or Jul 10 1992).
The format of the date string depends on the value of the date attribute. The string is always 12 characters long and begins with the month
and day. For dates younger than 6 months, the third field is the time, for dates older than 6 months, the year. The result string resides
in static memory, which will be overwritten on subsequent calls.
atWriteName generates a bound pathname from path and aso.
atScanStatus converts an status string to an internal numeric status value. It understands various abbreviations, including the one charac-
ter status strings generated by atWriteStatus.
.BUGS
The format switch in afWriteDate (for dates older than six months) does not happen at exactly the right time. It may be a few days later.
AtFStk-1.12 Fri Jun 25 16:39:43 1993 atprint(3)