Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Increment a date variable in perl script
Top Forums Shell Programming and Scripting Increment a date variable in perl script Post 302384664 by rrstone on Wednesday 6th of January 2010 04:31:06 AM
Old 01-06-2010
Debian
Code:
my $somefile = "/tmp/whatever" ;

sub store  { 
  my $what = shift ; 
  open my $file , ">$somefile" or die "$!" ; 
  print $file "$what"  ;
  close $file;
}

sub read_it { 
  open my $file , "<$somefile" or die "$!" ; 
  my $result = <$file> ; 
  close $file ;
  return $result ;  
}

if  ( -f  $somefile ) { 
   my $result = read_it();
   $result += 24 * 3600 ; # increment 1 day , date should be in epoch format 
   store($result);
   # do whatever you want with new result
} else {
  # original code  
  # 
  store($starting_date);
}

Store data in file in epoch format .
There is almost no exception handling in this code and it will not work concurrent .
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Shell Script To increment Date*HElp***

Hi, I want to increment date, using Shell Script, a loop to add one day after 24hrs. :confused: Cheers Kunal (1 Reply)
Discussion started by: niceboykunal123
1 Replies

2. Shell Programming and Scripting

How to increment a user defined date value in the DATE format itself using shell script?

I need to increment a date value through shell script. Input value consist of start date and end date in DATE format of unix. For eg. I need increment a date value of 1/1/09 to 31/12/09 i.e for a whole yr. The output must look like 1/1/09 2/2/09 . . . 31/1/09 . . 1/2/09 . 28/2/09... (1 Reply)
Discussion started by: sunil087
1 Replies

3. Shell Programming and Scripting

Increment date in script

Hi, Iam new to scripting language.:o can someone help me out solving this thread?hopingly ya....:) I want to write a script which connects to db and searches the count in a table which has date column and id column. If the count is not equal to 0 then it should increment the date with the one... (4 Replies)
Discussion started by: jyothi_wipro
4 Replies

4. Shell Programming and Scripting

Increment in date

Hi, I have a variable lets say DATA_DATE. I have to pass some value to this variable in YYYYMMDD format. lets say today I have passed this variable as : DATA_DATE=20100107 Then pls help me how to calculate another variable DATA_DATE1 (which is DATA_DATE+1). The code should work... (3 Replies)
Discussion started by: 46019
3 Replies

5. Shell Programming and Scripting

Date increment

hi Friends, Today_Dt=`date "+%Y-%m-%d"` So the Today date is 2010-05-03 I have a file which has date values as below 2010-04-27 2010-04-02 2010-04-18 2010-04-28 2010-04-29 .. (1 Reply)
Discussion started by: Gopal_Engg
1 Replies

6. Shell Programming and Scripting

how to update date part with new increment date time

hi experts, my requirement is like this i need to develop a shell script to update date part with new incremental date time in file some 'X' which is kept at some server location incrementing every two hours.as i am new to this scripting i need support from u people,thanx in advance (1 Reply)
Discussion started by: amanmro
1 Replies

7. Shell Programming and Scripting

How to increment date using "for loop" in format MMDDYY inside the shell script?

Need to increment the date from "currentdate + 90days" inside the for loop (i=1 to i=50) (5 Replies)
Discussion started by: aroragaurav.84
5 Replies

8. Shell Programming and Scripting

[Solved] How to increment and add variable length numbers to a variable in a loop?

Hi All, I have a file which has hundred of records with fixed number of fields. In each record there is set of 8 characters which represent the duration of that activity. I want to sum up the duration present in all the records for a report. The problem is the duration changes per record so I... (5 Replies)
Discussion started by: danish0909
5 Replies

9. Shell Programming and Scripting

Increment date variable

hey guys, I need to incerement the date variable for instance echo `date '+%F %H:%M:00'` this produces 2014-08-02 20:05:00 -I will grant this to : $Datehour and need to assign 1 hr from now to $Datelasthour -the script time will be used to talk to DB system information. however... (4 Replies)
Discussion started by: mo_VERTICASQL
4 Replies

10. UNIX for Beginners Questions & Answers

Script to find a date variable and increment it

Hi, I have parameter file wo_location.prm which has a date variable $last_upd_date= 02032016. I need to write a unix shell script to find that variable and increment it by 1 day. The path to the file is root/dir_lc/shared/param/wo_location.prm and the variable is $last_upd_date. Any... (2 Replies)
Discussion started by: isenhiem
2 Replies

LEARN ABOUT BSD

sccstorcs

SCCSTORCS(8)						      System Manager's Manual						      SCCSTORCS(8)

NAME

       sccstorcs - build RCS file from SCCS file

SYNOPSIS

       sccstorcs [-t] [-v] s.file ...

DESCRIPTION

       Sccstorcs builds an RCS file from each SCCS file argument.  The deltas and comments for each delta are preserved and installed into the new
       RCS file in order.  Also preserved are the user access list and descriptive text, if any, from the SCCS file.

       The following flags are meaningful:

       -t     Trace only.  Prints detailed information about the SCCS file and lists the commands that would be executed to produce the RCS  file.
	      No commands are actually executed and no RCS file is made.

       -v     Verbose.	Prints each command that is run while it is building the RCS file.

FILES

       For  each s.somefile, Sccstorcs writes the files somefile and somefile,v which should not already exist.  Sccstorcs will abort, rather than
       overwrite those files if they do exist.

SEE ALSO

       ci (1), co (1), rcs (1).
       Walter F. Tichy, "Design, Implementation, and Evaluation of a Revision Control System," in Proceedings of the 6th International	Conference
       on Software Engineering, IEEE, Tokyo, Sept. 1982.

DIAGNOSTICS

       All diagnostics are written to stderr.  Non-zero exit status on error.

BUGS

       Sccstorcs  does	not  preserve all SCCS options specified in the SCCS file.  Most notably, it does not preserve removed deltas, MR numbers,
       and cutoff points.

AUTHOR

       Ken Greer

       Copyright (C) 1983 by Kenneth L. Greer

4th Berkeley Distribution					   29 June 1983 						      SCCSTORCS(8)
All times are GMT -4. The time now is 06:39 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy