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Top Forums Shell Programming and Scripting Date with Wildcards in Command Post 302585563 by balajesuri on Wednesday 28th of December 2011 07:36:00 PM
Old 12-28-2011
1. Please indent your code. Use code tags where necessary.
2. Looks like your initial steps to find the previous days' date is not working.
3. If you have bash try this: date -d"1 day ago" '+%m %d %Y'. Not sure if this'll work on ksh.
4. Or another work around to find yesterday's date is:
Code:
x=$(echo "`date +%s` - 86400" | bc)
date -d @$x '+%m %d %Y'

5. Again, this part in your awk is not fool-proof: d="$(date +%Y%m%d | awk '{printf"%8d\n",($1-1)}'. If date were to fetch "20111201", variable 'd' would hold "20111200" which isn't a valid date now, is it?
6. The reason you're getting all files is because, $YEAR$MONTH$DAY may not be holding any values. So, shell sees it as ** and not *$YEAR$MONTH$DAY*

Last edited by balajesuri; 12-28-2011 at 08:42 PM..
 

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DATE(1) 						      General Commands Manual							   DATE(1)

NAME
date - print or set the date and time SYNOPSIS
date [-qsu] [[MMDDYY]hhmm[ss]] [+format] OPTIONS
-q Read the date from stdin -s Set the time (implicit for -q or a date string) -u Print the date as GMT -t Use this number of seconds instead of current time EXAMPLES
date # Print the date and time date 0221921610 # Set date to Feb 21, 1992 at 4:10 p.m. DESCRIPTION
With the -q flag or a numeric argument, date sets the GMT time and date. MMDDYY refers to the month, day, and year; hhmmss refers to the hour, minute and second. Each of the six fields must be exactly two digits, no more and no less. date always display the date and time, with the default format for the system. The -u flag request GMT time instead of local time. A format may be specified with a + followed by a printf-like string with the following options: %% % character %A Name of the day %B Name of the month %D mm/dd/yy %H Decimal hour on 2 digits %I Decimal hour modulo 12 on 2 digits %M Decimal minute on 2 digits %S Decimal seconds on 2 digits %T HH:MM:SS %U Decimal week number, Sunday being first day of week %W Decimal week number, Monday being first day of week %X Same as %T %Y Decimal year on 4 digits %Z Time Zone (if any) %a Abbreviated name of the day %b Abbreviated name of the month %c Appropriate date & time (default format) %d Decimal day of the month on 2 digits %e Same as %d, but a space replaces leading 0 %h Same as %b %j Decimal dey of the year on 3 digits %m Decimal month on 2 digits %n Newline character %p AM or PM %r 12-hour clock time with AM/PM %s Number of seconds since the epoch %t Tab character %w Decimal day of the week (0=Sunday) %x Same as %D %y Decimal year on 2 digits SEE ALSO
time(2), ctime(3), readclock(8). DATE(1)
All times are GMT -4. The time now is 07:10 PM.
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