Sponsored Content
Top Forums Shell Programming and Scripting overwrite only if both files are the same size Post 302685229 by RudiC on Saturday 11th of August 2012 02:43:45 PM
Old 08-11-2012
If available on your system; stat --printf %s filename
will give you the size as recorded in the directory without opening and counting the file's contents.

Last edited by RudiC; 08-11-2012 at 04:02 PM..
This User Gave Thanks to RudiC For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Overwrite

if i want to pipe output to a file, say, cat abc.dat > abc.txt, how do i make it replace the existing file? (9 Replies)
Discussion started by: Duckman
9 Replies

2. Shell Programming and Scripting

bash script working for small size files but not for big size files.

Hi, I have one file stat. Stat file contents are as follows: for example. H50768020040913,00260100,507680,13,0000000643,0000000643,00000,0000 H50769520040808,00260100,507695,13,0000000000,0000000000,00000,0000 H50770620040611,00260100,507706,13,0000000000,0000000000,00000,0000 Now i... (1 Reply)
Discussion started by: davidpreml
1 Replies

3. Shell Programming and Scripting

This script cut size of files "Lol" change string in files

Basic: find . -type f -name “*.txt” -print | awk '{gsub("Ontem", "AntesdeOntem", $0); print > FILENAME}' *.txt The idea is in folder /home/myapontamentos I have some files and i need to change in all them the word "ontem" to "antesdeontem". But bigger files are cut (size i mean)... (4 Replies)
Discussion started by: single
4 Replies

4. Shell Programming and Scripting

Files overwrite in awk

Hi guys, I checked the knowledge base before posting this question. is there any way by which you can ALWAYS ALLOW file overwrite in AWK?. i.e. an option similar to noclobber in Korn shell. I don't to check for files existence and remove them. (1 Reply)
Discussion started by: Moon Noon
1 Replies

5. Shell Programming and Scripting

Merge files of differrent size with one field common in both files using awk

hi, i am facing a problem in merging two files using awk, the problem is as stated below, file1: A|B|C|D|E|F|G|H|I|1 M|N|O|P|Q|R|S|T|U|2 AA|BB|CC|DD|EE|FF|GG|HH|II|1 .... .... .... file2 : 1|Mn|op|qr (2 Replies)
Discussion started by: shashi1982
2 Replies

6. UNIX for Dummies Questions & Answers

copy only new files or files of a different size

hello i would like to copy files from 1 location to a nother, but it has only to copy files which are newer or have a different filesize. all has to be logged to a copy.log file (als skipped files should be in the log) is this possible with the cp command (1 Reply)
Discussion started by: arnoldg
1 Replies

7. Shell Programming and Scripting

How to delete some of the files in the directory, if the directory size limits the specified size

To find the whole size of a particular directory i use "du -sk /dirname".. but after finding the direcory's size how do i make conditions like if the size of the dir is more than 1 GB i hav to delete some of the files inside the dir (0 Replies)
Discussion started by: shaal89
0 Replies

8. Shell Programming and Scripting

Files have same size

Hello, I want remove files have same size in a directory. this command only find this files. ls -l | awk '$1!~/^d/{if(size!=""){ print}size=$8}' I want to remove the files of the same size. samples: 5 files are same size. I want to keep only first file. Thank you very much for your help. (3 Replies)
Discussion started by: hoo
3 Replies

9. Shell Programming and Scripting

Compare two files, then overwrite first file with only that in both files

I want to compare two files, and search for items that are in both. Then override the first file with that containing only elements which were in both files. I imagine something with diff, but not sure. File 1 One Two Three Four Five File 2 One Three Four Six Eight (2 Replies)
Discussion started by: castrojc
2 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
LSTAT(3)								 1								  LSTAT(3)

lstat - Gives information about a file or symbolic link

SYNOPSIS
array lstat (string $filename) DESCRIPTION
Gathers the statistics of the file or symbolic link named by $filename. PARAMETERS
o $filename - Path to a file or a symbolic link. RETURN VALUES
See the manual page for stat(3) for information on the structure of the array that lstat(3) returns. This function is identical to the stat(3) function except that if the $filename parameter is a symbolic link, the status of the symbolic link is returned, not the status of the file pointed to by the symbolic link. EXAMPLES
Example #1 Comparison of stat(3) and lstat(3) <?php symlink('uploads.php', 'uploads'); // Contrast information for uploads.php and uploads array_diff(stat('uploads'), lstat('uploads')); ?> The above example will output something similar to: Information that differs between the two files. Array ( [ino] => 97236376 [mode] => 33188 [size] => 34 [atime] => 1223580003 [mtime] => 1223581848 [ctime] => 1223581848 [blocks] => 8 ) ERRORS
/EXCEPTIONS Upon failure, an E_WARNING is emitted. NOTES
Note The results of this function are cached. See clearstatcache(3) for more details. Tip As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to "Supported Protocols and Wrappers" to determine which wrappers support stat(3) family of functionality. SEE ALSO
stat(3). PHP Documentation Group LSTAT(3)
All times are GMT -4. The time now is 07:20 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy