I'm trying to figure out a way to delete empty files in a directory. I have a cron that runs and creates a flat file every 15 mins. However, most times at night the flat file will be empty.
I'd like to run a script to delete empty files that end with *.dat
Any suggestions?
Rich (1 Reply)
I am using the following Command to delete Directory with contents. But this command is deleting inside files only not directories. is there any change need in my command?
find -type f -mtime +3 -exec rm -r {} \;
Thanks (3 Replies)
Hi all,
Can you tell me how to empty all files in a directory with a "find" command?
It does not seem to work the way I try it:
# ls -l *.dat
-rw-r--r-- 1 root root 7 Jul 20 20:51 la2.dat
-rw-r--r-- 1 root root 4 Jul 20 20:51 la.dat
# find... (9 Replies)
What I'm trying to do is write a bash file that prompts for the user's name and what the want to name the output file. If nothing is entered in either prompt the script must end and not create the output file. This is what I have so far:
#!/bin/sh
echo "What is your name?"
read NAME
if
... (4 Replies)
I'm trying to write a shell script to files of zero length in a specified directory, but I keep getting errors. Would anybody be kind enough to look it over for issues? Thanks a bunch in advance.
#!/bin/sh
if
then
if
then
find $1 -type f -size 0 -print|xargs rm
exit 0... (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Need to make a script, to remove all empty files and folders from current category.
It also should show the name... (2 Replies)
Hi Everyone,
I work for GE Money IVR as a DB analyst and the environment on which I work is Solaris 5.0 server and Oracle 11g.
I got a project in which I have to clean up the folders and files which are not used in DB.
I copied an existing script and edited it, dont know this is the... (5 Replies)
Need a ksh script to get the files that were created or modified in a directory on a particular date entered by the user.
For example if a directory contains files as below :
> ll
total 41
-rw-rw-r-- 1 psn psn 199 Aug 23 07:06 psn_roll.sh
-rw-rw-r-- 1 psn psn ... (10 Replies)
Hello Friends,
I have directory called /tmp. which stores the log files.
Whenever it becomes full, i want to delete half of files from all log files.
even after deleting the files, if space is more than 90% then it should delete rest of half files.
While deleting files, older files... (7 Replies)
Hi,
I need help in regard to developing a shell script to delete empty files from multiple specific locations. The directory paths will be stored in a text file. So the requirement is to read the text file for one specific path and then remove empty files from that particular path. Looping through... (4 Replies)
Discussion started by: Khan28
4 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS --predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO bup-midx(1), bup-save(1)BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown-bup-margin(1)
02-17-2012
