I have a problem with the script below
#!/bin/sh
for vo in `find -maxdepth 1 -type f -regex "^\./*$"`
do
ls -l "$vo"
some other commands
done
It works fine until `find ...` returns files with spaces. I've tryed to change IFS but haven't succeed
Any solutions? (4 Replies)
Hi,
To start, I am using a bash shell on a G4 powerbook running Leopard. I am attempting to write a shell script that will automate the processing of satellite imagery. All the filenames are of the following construction:
A2008196000500.L2
where A indicates the sensor, the next four... (6 Replies)
HIya,
Having a dumb day whilst writing an archive process in Shell want to extract from the filename the date and archive into tar files based on this, I don't want to use mtime as it may not be the actual file date.
The files are
-rw-rw---- 1 user admin 100 Aug 29 11:10... (2 Replies)
Using a small script, I automatically generated some text logs. The files ended being undownloadable, unopenable and undeletable. Upon further investigation, the files ended up looking like this:
log\r
log2\r
log3\r
I've tried a few different things, including double slashing before the... (6 Replies)
How can I loose a part of the filename
I want to drop the “_<Number>.sql”
Below I have a listing of file names in a file
Eg :
CREDIT_DEL_033333.sql I want it to be CREDIT_DEL
ATM_DEBIT_CARD_0999999.sql I want it to be ... (3 Replies)
I have 7 files with 7 different names coming into a specified folder on weekly basis, i need to pick a file one after another and load into oracle table using sql loader. I am using ksh to do this. So in the process if the file has error records and if sql loader fails to load into oracle tables,... (0 Replies)
Hi Folks,
I'm looking for some ideas on how to change some file names. I'm pretty sure I need to use sed or awk but they still escape me. The files I have are like:
VOD0615 NEW Blades R77307.pdf or
VOD0615_NEW_Blades_R77307.pdf
and what I want after processing is:
R77307 NEW Blades.pdf
... (5 Replies)
Hi:
mkisofs -graft-points -rational-rock -joliet -joliet-long -full-iso9660-filenames -iso-level 2 -o /tmp/image.iso STORE1/=/almacen/strauss
In /almacen/strauss there are filenames containing not only spaces but accented characters as well. I burned the image to DVD, with the result that all... (2 Replies)
Hi there
I have thousands files like:
SG1130113000247.CAPNFXS
SG1130113001247.CAPNFXT
SG1130113002247.CAPNFXU
.
.
.
I want to remove SG1 and .CAP* from file name, and rename it to:
130113000247
130113001247
130113002247 (9 Replies)
Hello Unix experts:
I have dir where few files are there, i want to sort these files and write the output to some other file but i need filenames with filepath too
eg:
i have filenames like
010020001_S-FOR-Sort-SYEXC_20171218_094256_0004.txt
so i want to sort my files on first 5 fields of... (2 Replies)
Discussion started by: gnnsprapa
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)