10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all,
Please, i'd like to extract string just before '.fr'.
Here is some lines of my file:
g-82.text.text1.fr.worker1
g-xx.yyyyyy.zzzz.fr.worker2
i'd like to extract this text:
g-82.text.text1
g-xx.yyyyyy.zzzz
Please, which command i have to use in my script shell ?
... (16 Replies)
Discussion started by: chercheur111
16 Replies
2. Shell Programming and Scripting
Hello,
A question please.
A have a file that contains a string. Ex:
AAAABBCCCCCDDEEEEEEEEEEFF
I'd want to recover 2 substrings, 'BB' and 'FF' and then leave them in a new file.
From position 5, 2 caracters (ex:"BB") and from position 25, 2 caracters (ex:"FF") in a file.
Could anoyone help me... (3 Replies)
Discussion started by: nolo41
3 Replies
3. Shell Programming and Scripting
Hello,
A question please.
A have a file that contains a string. Ex:
AAAABBCCCCCDDEEEEEEEEEEFF
I'd want to recover 2 substrings, 'BB' and 'FF' and then leave them in a new file.
Could anoyone help me please?
Thanks in advance (3 Replies)
Discussion started by: nolo41
3 Replies
4. Shell Programming and Scripting
Hi,
I have an input string say for example:
ABC,DEF,IJK,LMN,...,XYZ
The above string is comma delimited. Now I have to extract the last part after the comma i.e. XYZ.
:b: (3 Replies)
Discussion started by: bghosh
3 Replies
5. Shell Programming and Scripting
Hi Experts,
I have a file on which i want to print the line which should match following criterias.
Line should not start with 0 or 9
and
Line should start with 1
and
(
576th character should not be 1 or 2
or
576-580 postion should not be NIPPF or CDIPB
or
576-581 postion should... (2 Replies)
Discussion started by: millan
2 Replies
6. Solaris
i have srtring i.e. "NAME,CLASS,AGE" (length of string is not constant) and from this string i've extract each word delimited by "," (comma).
INPUT: "NAME,CLASS,AGE"
OUTPUT: NAME
CLASS
AGE
how can i do that?
i have tried some string manipulation function like... (5 Replies)
Discussion started by: jadoo_c2
5 Replies
7. Shell Programming and Scripting
I have a shell script that uses wget to grab a bunch of html from a url.
URL_DATA=`wget -qO - "$URL1"`
I now have a string $URL_DATA that I need to pull a substring out of..say I had the following in my string
<p><a href="/scooby/929011567.html">Dog pictures check them out! -</a><font... (3 Replies)
Discussion started by: shellpower
3 Replies
8. Shell Programming and Scripting
> tnsping $TWO_TASK | grep HOST
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.12.10.212)(PORT = 1540)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = OMTST15)))
I want to extract like this
HOST = 10.12.10.212
PORT = 1540
SERVICE_NAME = OMTST15
I... (4 Replies)
Discussion started by: dashok.83
4 Replies
9. Shell Programming and Scripting
On OS 10.4.11
I have filenames like:
670711 SA T2 v1-1_DS_EF.doc
CT_670520 AM T1 v1-2_DS_EF.doc
CT_670716 - 2 SA T4 v1-2_DS_EF.doc
CT_670713 SA T3 v1-1_DS_EF.doc
670421 PA DYP1 v1-1_DS_EF.doc
CT_670425 PA DYP2 v1-1_DS_EF.doc
CT_670107 RA T3 v1-2_DS_EF.doc
CT_670521 AM T2 v1-2_DS_EF.doc... (3 Replies)
Discussion started by: mlommel
3 Replies
10. Shell Programming and Scripting
Ok, I'm stumped and can't seem to find relevant info.
(I'm not even sure, I might have asked something similar before.):
I'm trying to use shell scripting/UNIX commands to extract URLs from a fairly large web page, with a view to ultimately wrapping this in PHP with exec() and including the... (2 Replies)
Discussion started by: ropers
2 Replies
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)