Move files from one directory to another in chunks Post: 303002302

Sponsored Content

Top Forums Shell Programming and Scripting Move files from one directory to another in chunks Post 303002302 by hburnswell on Monday 21st of August 2017 11:46:49 PM

08-22-2017

Registered User

Move files from one directory to another in chunks

All,

I have an application that is not working properly and the company is 'in the process' of fixing it. In the meantime, I want to write a bash script work-around. However, what I thought was going to be simple is seemingly not.

Need:

- Move files from one directory to another in chunks.

If I move all the files at once the system resources are heavily consumed and the application suffers. The source directory ($dir1) will contain any number of files (100's or 1000's) at any given time. So, I'd like to do something like:

Code:

if [ "$(ls -A $dir1) ]; then

	find $dir1 -maxdepth 1 -type f > output.txt

	<loop through output.txt moving x amount of files at a time until directory empty>

	mv `head -100 output.txt` $dir2

else

	echo "no files to move.."

fi

I know I can accomplish what I need with a brute force creation of many files to read from but there must be a more sophisticated way to do it.

Is there way to drop the list of files into an array and do something like:

Code:

mv $files[1-100] $dir2
mv $files[101-200] $dir2

I need to find a usable number of files to move at a time (could be 100, 5000, 10000) while not knowing how many files could be in $dir1 at any given time.

Any guidance is greatly appreciated.

TIA,

Herb

Last edited by rbatte1; 08-22-2017 at 06:26 AM.. Reason: Added CODE tags

hburnswell

View Public Profile for hburnswell

Find all posts by hburnswell

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Move all files in a directory tree to a signal directory?

Is this possible? Let me know If I need specify further on what I am trying to do- I just want to spare you the boring details of my personal file management. Thanks in advance- Brian-

2. UNIX for Dummies Questions & Answers

How to move files between 2 dates from one directory to another

Hi All, I am coding for a requirement where I need to move files (filename.yymmdd) from one directory(A) to another(B) based on 2 date fields in a paramtere file. (Paramfile.txt) For e.g: In Paramfile.txt, BUS_DT =20120612 SUB_DT =20120602 In this case, i need to move all the files...

3. UNIX for Dummies Questions & Answers

Zip all files in a directory and move to another directory

Hi, need to zip all files in a directory and move to another directory after the zip.. i am using this one but didnt help me... zip -r my_proj_`date +%Y%m%d%H%MS`.zip /path/my_proj mv in_proj_`date +%Y%m%d%H%M%S`.zip /path/source/ i am trying to zip all the files in my_proj...

4. Shell Programming and Scripting

Process files in a directory and move them

I have a directory e2e_ms_xfer/cent01 this contains the multiple files some of which will be named below with unique date time stamps e2e_ms_edd_nom_CCYYMMDD_HHMM.csv What I want to do is in a loop 1) Get the oldest file 2) Rename 3) Move it up one level from e2e_ms_xfer/cent01 to...

5. UNIX for Dummies Questions & Answers

Rename files in a directory and move them

6. Shell Programming and Scripting

List files with date, create directory, move to the created directory

Hi all, i have a folder, with tons of files containing as following, on /my/folder/jobs/ some_name_2016-01-17-22-38-58_some name_0_0.zip.done some_name_2016-01-17-22-40-30_some name_0_0.zip.done some_name_2016-01-17-22-48-50_some name_0_0.zip.done and these can be lots of similar files,...

7. UNIX for Beginners Questions & Answers

Move all files one directory level up

I want to move all the files in a given directory up one level. For example: Dir1 Subdir1 I want to move all the files in Subdir1 up to Dir1 (then I want to ultimately delete Subdir1) Thanks, Ted

8. UNIX for Dummies Questions & Answers

How to move gz files from one source directory to destination directory?

Hi All, Daily i am doing the house keeping in one of my server and manually moving the files which were older than 90 days and moving to destination folder. using the find command . Could you please assist me how to put the automation using the shell script . ...

9. Shell Programming and Scripting

How Create new directory and move files to that directory.?

Hi All, We have main directory called "head" under this we have several sub directories and under these directories we have sub directories. My requirement is I have to find the SQL files which are having the string "procedure" under "head" directory and sub directories as well. And create...

LEARN ABOUT DEBIAN

raidfile-config

RAIDFILE-CONFIG(8)						    Box Backup							RAIDFILE-CONFIG(8)

NAME

       raidfile-config - Configure Box Backup's RAID files

SYNOPSIS

       raidfile-config config-dir blocksize dir1 [dir2 [dir3]]

DESCRIPTION

       raidfile-config creates a raidfile.conf file for Box Backup. This file holds information about the directories used to store backups in.
       Box Backup supports userland RAID, in a restricted RAID5 configuration, where 3 and only 3 'drives' are supported. You can read more about
       RAID5 (and other RAID-levels) here[1].

   Parameters
       The parameters are as follows:

       config-dir
	   The directory path where configuration files are located. Usually this is /etc/box.	raidfile.conf will be written in this directory.

       blocksize
	   The block size used for file storage in the system, in bytes. Using a multiple of the file system block size is a good strategy.
	   Depending on the size of the files you will be backing up, this multiple varies. Of course it also depends on the native block size of
	   your file system.

       dir1
	   The first directory in the built-in RAID array.

       dir2
	   The second directory in the built-in RAID array. If you are not using the built-in RAID functionality, this field should be ignored.
	   You should not use the built-in RAID if you have a hardware RAID solution or if you're using another type of software RAID (like md on
	   Linux).

       dir3
	   The third directory in the built-in RAID array. The same notes that apply to dir2 also apply to dir3.

       Note that there are currently no way to add multiple disk sets to the raidfile.conf file using command line tools, etc. See
       raidfile.conf(5) for details on adding more disks.

BUGS

       If you find a bug in Box Backup, and you want to let us know about it, join the mailing list[2], and send a description of the problem
       there.

       To report a bug, give us at least the following information:

       o   The version of Box Backup you are running

       o   The platform you are running on (hardware and OS), for both client and server.

       o   If possible attach your config files (bbstored.conf, bbackupd.conf) to the bug report.

       o   Also attach any log file output that helps shed light on the problem you are seeing.

       o   And last but certainly not least, a description of what you are seeing, in as much detail as possible.

FILES

       raidfile-config generates the raidfile.conf(5) file.

SEE ALSO

       bbstored-config(8), bbstored.conf(5), raidfile.conf(5)

AUTHORS

       Ben Summers

       Per Thomsen

       James O'Gorman

NOTES

	1. here
	   http://en.wikipedia.org/wiki/Redundant_array_of_independent_disks#RAID_5

	2. mailing list
	   http://lists.warhead.org.uk/mailman/listinfo/boxbackup

Box Backup 0.11 						    10/28/2011							RAIDFILE-CONFIG(8)