Hi all,
I need to replace automatically all special characters of one filename with some corresponding characters
For example >
ö --> oe
ä --> ae
....
If the special character comes more than one time, then all the coccuerences have to be replaced.
I would like to have a... (6 Replies)
Hi there,
I have a folder full of pdf's and I've run a compression on the to reduce the size, the output of the compress places a '-o' in the name of the file.
Before 12345.pdf
After 12345-o.pdf
Now I've got around 50000 files that I need to change back to the previous name, is... (3 Replies)
Hi,
If I have a directory full of say 100 random files, and I would like to organize them, for example: FILE001, FILE002, FILE003, FILE004, etc.
How would I do this from Terminal, instead of manually changing each file? I'm using Mac OS X, if that makes a difference.
Thank you in advance... (8 Replies)
Hi is it possible to change multiple files (~10k) names with out disturbing the data in it. ?
input
Hynda|cgr10(+):100027702-1000312480|.txt
Hynda|cgr10(+):100027702-1000312483|.txt
Hynda|cgr10(+):100027702-1000312484|.txt
Hynda|cgr10(+):100027702-1000312482|.txt
output... (4 Replies)
admin.campaign.sql
admin.cardnumber_filter.sql
understand that rename is using mv command but how do I rename such that it become the following:
campaign.sql
cardnumber_filter.sql
thanks (2 Replies)
I have fasta files with multiple sequences in each. I need to change the sequence name headers from:
>accD:_59176-60699
ATGGAAAAGTGGAGGATTTATTCGTTTCAGAAGGAGTTCGAACGCA
>atpA_(reverse_strand):_showing_revcomp_of_10525-12048
ATGGTAACCATTCAAGCCGACGAAATTAGTAATCTTATCCGGGAAC... (2 Replies)
Hi,
How can I change following file name in a bash script?
From file names: myfile-module-1.0-3.0.el6.x86_64.package
To file names: myfile-module1_0-1.0-3.0.el6.x86_64.package
^ ^ ^ ^ ^ ^ ^ ^
Basically, the digit 1.0 is a version number, the digit 3.0 is... (11 Replies)
Hi,
I have a files in a directory as below :-
ls -1
mqdepth-S1STC02
proc-mq-S1STC01
proc-mq-S1STC02
proc-mq-S1STC03
Whereever i have S1STC i need to copy them into new file with file name S2STC.
expected output :-
ls -1
mqdepth-S2STC02
proc-mq-S2STC01
proc-mq-S2STC02... (3 Replies)
What am I missing?
find: 0652-009 There is a missing conjunction
find: 0652-009 There is a missing conjunction
find: 0652-009 There is a missing conjunction
find: 0652-009 There is a missing conjunction
find: 0652-009 There is a missing conjunction
find: 0652-009 There is a missing... (3 Replies)
I have a landing directory on my unix (solaris) server, that receives the following files:
MLH4301I AAOT-hhslog.610.20150805.txt
MLH4301I AAOT-hhslog.611.20150805.txt
MLH4301I AAOT-hhslog.612.20150805.txt
MLH4301I AAOT-hhslog.613.20150805.txt
and I need to add to this files the number 10000... (6 Replies)
Discussion started by: fretagi
6 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)