Sponsored Content
Top Forums Shell Programming and Scripting Compare file dates before copy Post 303021424 by drew77 on Thursday 9th of August 2018 08:22:04 AM
Old 08-09-2018
Compare file dates before copy

Sometimes when I boot, my system goes into emergency mode.

I then use Clonezilla to restore an image.

Usually the image is older than the current date.

This is part of a backup script that runs as a startup program.

Code:
cd /home/andy/bin/
zip -u -q Ubuntu_Scripts.zip *.sh *.rb *.c *.py *.txt
cp -u Ubuntu_Scripts.zip /media/andy/MAXTOR_SDB1/Ubuntu_Mate_18.04/
cp -u Ubuntu_Scripts.zip /media/andy/MAXTOR_SDB5/Emergency_Backup/

This then overwrites my zip file with one that is in fact older.

I thought that if I could compare the file dates, before the zip operation, I could prevent the overwriting.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

compare two dates

I have a log file with date format like 10-Oct-02 13:20:29 ..... at the beginning of each line in the log file, and I need to grep data from this file to list the lines with date no longer than one days. I tried to use awk to do this but it looks very complicated to do it. Is there... (6 Replies)
Discussion started by: wchen
6 Replies

2. Programming

How to compare dates in C/C++

Hi, Is there any system defined function to compare two dates in C/C++? Thanks (1 Reply)
Discussion started by: naan
1 Replies

3. Shell Programming and Scripting

How to compare the dates..

Hi all, I've written a script which gives the below information... End Date&Time: 2008-10-21 10.54.37 Now i want to calculate this time with the current time.. and if its more than 48 hours past with the current time it should echo "48 Hours back" Please help me.. thanks in... (4 Replies)
Discussion started by: suri.tyson
4 Replies

4. Shell Programming and Scripting

PERL - copy fiel contents to array then compare against other file

Basically to illuminate i want to take a file with mutliple lines, C:\searching4theseletters.txt a b c Read this into an array @ARRAY and then use this to compare against another file C:\inputletters.txt b o a c n a (9 Replies)
Discussion started by: bradleykins
9 Replies

5. Shell Programming and Scripting

Compare dates

Need to find all records where date in one filed is greater than date in other. Input: ABC 2 Filed3 CDG * X 20080903 20081031 180.00 ABD 2 Filed3 CDG * X 20081101 20081031 190.00 ABE 2 Filed3 CDG * X 20090903 20081031 120.00 ABC 2 Filed3 CDG * X 20080903 20081015 130.00 Output: ... (2 Replies)
Discussion started by: necroman08
2 Replies

6. Shell Programming and Scripting

The Best Way to Compare Dates

Hi to all. When you have to compare a lot of dates in a SH code, there is a way to directly compare? For example, how can I check if two dates differ in less than a week? Thank's for reading. (2 Replies)
Discussion started by: daniel.gbaena
2 Replies

7. Shell Programming and Scripting

Compare Dates.

Hi All, I am entering StartDate and EndDate as parameters to script. Want to have an check saying, "If StartDate is greater than EndDate then don't execute the script". Pseudo Code: if then Execute script else exit 0 fi Can you please help me on the same? Thanks and... (4 Replies)
Discussion started by: Nagaraja Akkiva
4 Replies

8. Shell Programming and Scripting

ksh compare dates INSIDE a file (ie date A is > date B)

In KSH, I am pasting 2 almost identical files together and each one has a date and time on each line. I need to determine if the first instance of the date/time is greater than the 2nd instance of the date/time. If the first instance is greater, I just need to echo that line. I thought I would... (4 Replies)
Discussion started by: right_coaster
4 Replies

9. Shell Programming and Scripting

Compare File & Copy Replace if Successful

Hi All, I have written a shell script that creates a backup of my MySQL database. The script performs the following functions: Creates a Backup of the MySQL database Compresses the Backup Copies the Backup to a Remote Server Send an E-Mail displaying the size of the Backup Removes any... (6 Replies)
Discussion started by: SalientAnimal
6 Replies

10. Shell Programming and Scripting

Compare file size and then copy/overwrite

// Redhat I have this code working, but need to add one more qualification so that I don't overwrite the files. #!/bin/sh cd /P2/log/cerner_prod/millennium/archive/ for f in * do || continue #If this isn't a regular file, skip it. && continue #If a backup already... (2 Replies)
Discussion started by: Daniel Gate
2 Replies
ZIPARCHIVE.OPEN(3)							 1							ZIPARCHIVE.OPEN(3)

ZipArchive::open - Open a ZIP file archive

SYNOPSIS
mixed ZipArchive::open (string $filename, [int $flags]) DESCRIPTION
Opens a new zip archive for reading, writing or modifying. PARAMETERS
o $filename - The file name of the ZIP archive to open. o $flags - The mode to use to open the archive. o ZipArchive::OVERWRITE o ZipArchive::CREATE o ZipArchive::EXCL o ZipArchive::CHECKCONS RETURN VALUES
o $Error codes - Returns TRUE on success or the error code. o ZipArchive::ER_EXISTS File already exists. o ZipArchive::ER_INCONS Zip archive inconsistent. o ZipArchive::ER_INVAL Invalid argument. o ZipArchive::ER_MEMORY Malloc failure. o ZipArchive::ER_NOENT No such file. o ZipArchive::ER_NOZIP Not a zip archive. o ZipArchive::ER_OPEN Can't open file. o ZipArchive::ER_READ Read error. o ZipArchive::ER_SEEK Seek error. EXAMPLES
Example #1 Open and extract <?php $zip = new ZipArchive; $res = $zip->open('test.zip'); if ($res === TRUE) { echo 'ok'; $zip->extractTo('test'); $zip->close(); } else { echo 'failed, code:' . $res; } ?> Example #2 Create an archive <?php $zip = new ZipArchive; $res = $zip->open('test.zip', ZipArchive::CREATE); if ($res === TRUE) { $zip->addFromString('test.txt', 'file content goes here'); $zip->addFile('data.txt', 'entryname.txt'); $zip->close(); echo 'ok'; } else { echo 'failed'; } ?> PHP Documentation Group ZIPARCHIVE.OPEN(3)
All times are GMT -4. The time now is 08:19 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy