05-05-2010
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all,
how to write a script that will indentify the files in a directory which are 7 days old and delete those files.
Thanks in advance
Cheers
Arunava (8 Replies)
Discussion started by: arunava_maity
8 Replies
2. UNIX for Dummies Questions & Answers
I have a directory that contains files. I would like the command that deletes all files that are over 30 days old. Delete files based on creation date and not modified. (2 Replies)
Discussion started by: GEBRAUN
2 Replies
3. Shell Programming and Scripting
Hi,
I would like to list latest 2 days, 3 days or 4 days,etc of files in the directory...
how? is it using ls? (3 Replies)
Discussion started by: happyv
3 Replies
4. UNIX for Dummies Questions & Answers
Hi
Can u please tell me how to delete last 10 days logs .. (9 Replies)
Discussion started by: pb18798
9 Replies
5. Shell Programming and Scripting
i want to delete three days from system date ... date -3 (4 Replies)
Discussion started by: r_t_1601
4 Replies
6. Shell Programming and Scripting
Hi..
Am using diff to compare 2 directories(A & B) and as ouput i get a list of files which are found only in directory B ( I used grep & sed to create the list).
Now I want to delete the files which are found only in dir B after 3 days.
Please help me with this.
Thanks
CoolAtt (7 Replies)
Discussion started by: coolatt
7 Replies
7. Shell Programming and Scripting
Hi
How do I remove a directory which are some days old .
For Ex :
$ cd /WMID/data/temp/TxTest/Dev/txStore
$ ls -ltr
total 0
drwxr-xr-x 3 wmethods wmapp 80 Jul 21 03:36 0AE445C4
drwxr-xr-x 3 wmethods wmapp 80 Jul 21 04:00 0AE44664
drwxr-xr-x 3 wmethods... (6 Replies)
Discussion started by: leo76
6 Replies
8. Shell Programming and Scripting
Hi All
I want to remove the files with name like data*.csv from the directory older than 10 days.
If there is no files exists to remove older than 10 days, It should not do anything.
Thanks
Jo (9 Replies)
Discussion started by: rajeshjohney
9 Replies
9. AIX
how do i remove sub directories of a directory and all files which are older than 7 days by a single command in AIX. pls help me.
I am using command as
#find /gpfs1/home/vinod/hpc/ -depth -type d -mtime +7 -exec rm -rf {} \;
so i want to delete all sub directories and all files from the... (1 Reply)
Discussion started by: vinodkmpal
1 Replies
10. Shell Programming and Scripting
Will this work to delete files 30 days old in $backupDir or is there a better way to do it?
find $backupDir -type f -mtime +30 -exec rm {} \; (2 Replies)
Discussion started by: wyclef
2 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)