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Top Forums UNIX for Dummies Questions & Answers Delete a row from a file if one column containing a date is greater than the current system date Post 302536577 by itkamaraj on Tuesday 5th of July 2011 11:11:45 PM
Old 07-06-2011
Code:
$ today=`date +%Y%m%d`;nawk -F"\~" -v date=$today '{ if( $13 < date) {print $0} }' filename
NETW~US60~000000000013220694~002~~IT~USD~2.24~20110201~99991231~01~01~20101104~
NETW~US60~000000000013234445~001~~IT~USD~0.33~20090107~99991231~01~01~~

 

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calendar(1)						      General Commands Manual						       calendar(1)

Name
       calendar - calendar reminder service

Syntax
       calendar [-]

Description
       The  command  consults the file `calendar' in the current directory and prints out lines that contain today's or tomorrow's date.  The com-
       mand recognizes most month-day dates, such as Dec. 7, december 7, 12/7, but it does not recognize dates formatted in the following ways:  7
       December  or  7/12.  If you give the month as * with a date, such as, * 1, that day in any month will do.  On weekends, specifying tomorrow
       extends through Monday.

       When an argument is present, the command searches through a user's calendar file in his login directory and sends him any positive  results
       by Normally this is done daily under control of

       The  calendar  file  is	first  run  through  the  C  preprocessor, to include any other calendar files specified with the #include syntax.
       Included calendars are shared by all users, and are maintained and documented by the local administration.

Options
       -    Functions for every user who has a calendar file in his login directory.

Restrictions
       The extended idea of tomorrow does not account for holidays.

Files
       calendar
       /usr/lib/calendar to figure out today's and tomorrow's dates
       /etc/passwd
       /tmp/cal*
       /lib/cpp, egrep, sed, mail as subprocesses

See Also
       at(1), cron(8), mail(1)

																       calendar(1)
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