Delete a row from a file if one column containing a date is greater than the current system date
Hello gurus,
I am hoping someone can help me with the required code/script to make this work. I have the following file with records starting at line 4:
Logic would be:
1. Start reading line @ Row 4.
2. Check the date of the last column.
3. If date > current date, delete line
3. If there is no date, retain line
So from the example above, the record in the middle should be deleted from the file, thus retaining the 1st and 3rd lines.
Much appreciated!
Chumsky
Last edited by Franklin52; 07-06-2011 at 04:18 AM..
Reason: Please use code tags for code and data samples, thank you
I need to extract the date part from the file name (20080221 in this ex) and compare it with the current date and delete it, if it is a past date.
$file = exp_ABCD4_T-2584780_upto_20080221.dmp.Z
really appreciate any help.
thanks
mkneni (4 Replies)
Hi,
Anybody knows how to get what date was 28 days ago of the current system date through UNIX script.
Ex : - If today is 28th Mar 2010 then I have to delete the files which arrived on 1st Mar 2010, (15 Replies)
Hi,
I have a csv file with old data..i need to have only last 30 days from the current dateof data in the file.The fourth field in the file is a date field.i need to write a script to delete the old data by comparing the the fourth field with the (current date -30).I need to delete the rows in... (2 Replies)
Hi, as the title states i need to find a way to search a column for values great than 1000, and if it is, then delete that row.
An example
1 7.021 6.967 116.019 4 U 6.980E+07 0.000E+00 e 0 0 0 0
2 8.292 7.908 118.063 3 U 1.440E+07 0.000E+00 e 0 821 814 ... (3 Replies)
Hi Guys,
Anyone who knows how to compare the current date with the a file containing a date, say for example I have a file that looks like this:
Command was launched from partition 0.
------------------------------------------------
Executing command in server server6
Fri Dec 16... (7 Replies)
I want to delete row in csv file , which row value from 2009-10-01 to 2011-06-03 using script.my csv row data look like:
2009-10-01
2011-03-30
2011-03-31
2011-04-01
2011-06-03
2011-06-30
2011-07-01
2011-09-28 ... (7 Replies)
SunOS -s 5.10 Generic_147440-04 sun4u sparc SUNW,SPARC-Enterprise
Hi,
In a folder, there are files. I have a script which reads the current date and subtract the modification date of each file.
How do I achieve this?
Regards,
Joe (2 Replies)
We want to call a parameter file (.txt) where my application read dynamic values when the job is triggered, one of such values are below:
abc.txt
------------------
Code:
line1
line2
line3
$$EDWS_DATE_INSERT=08-27-2019
line4
$$EDWS_PREV_DATE_INSERT=08-26-2019
I am trying to write a... (3 Replies)
I Have text like
XXX_20190908.csv.gz need to replace Only date in this format with current date every day
Thanks! (1 Reply)
Discussion started by: yamasani1991
1 Replies
LEARN ABOUT PHP
dbase_replace_record
DBASE_REPLACE_RECORD(3) 1 DBASE_REPLACE_RECORD(3)dbase_replace_record - Replaces a record in a databaseSYNOPSIS
bool dbase_replace_record (int $dbase_identifier, array $record, int $record_number)
DESCRIPTION
Replaces the given record in the database with the given data.
PARAMETERS
o $dbase_identifier
- The database link identifier, returned by dbase_open(3) or dbase_create(3).
o $record
- An indexed array of data. The number of items must be equal to the number of fields in the database, otherwise
dbase_replace_record(3) will fail.
Note
If you're using dbase_get_record(3) return value for this parameter, remember to reset the key named deleted.
o $record_number
- An integer which spans from 1 to the number of records in the database (as returned by dbase_numrecords(3)).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Updating a record in the database
<?php
// open in read-write mode
$db = dbase_open('/tmp/test.dbf', 2);
if ($db) {
// gets the old row
$row = dbase_get_record_with_names($db, 1);
// remove the 'deleted' entry
unset($row['deleted']);
// Update the date field with the current timestamp
$row['date'] = date('Ymd');
// Replace the record
dbase_replace_record($db, $row, 1);
dbase_close($db);
}
?>
SEE ALSO dbase_add_record(3), dbase_delete_record(3).
PHP Documentation Group DBASE_REPLACE_RECORD(3)