Hi all,
How do you replace all lines that begin with markerA and end with markerB?
Ex: I have a file with a list of lines.
/sbin/fsck -> $(SEC_CRIT) ;
/sbin/fsck.ext2 -> $(SEC_CRIT) ;
How can I replace all "->$....;" with a blank space... (1 Reply)
Anyone know how to use SED to append a comma to the end of each line
example:
field1,field2,field3,field4
If i Cat /textfile ---- How can i append the end of /textfile with a comman? (8 Replies)
Hi all,
I have output files that are all text files with various different extensions.
So, if I submit the input file "job_name.inp", when it finishes I get an output file "job_name.dat". A typical input file looks something like this:
$CONTRL SCFTYP=RHF RUNTYP=ENERGY MAXIT=199 MULT=1... (4 Replies)
Hello!
I have text file:
From aaa@bbb Fri Jun 1 10:04:29 2010
--____OSPHWOJQGRPHNTTXKYGR____
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
My code '234565'. ... (2 Replies)
how to use sed to put .txt end of line..my input file below
file1
make=^bak12^".
DEV=LONG^cmd/usr/bak/ade4^"
.....................................
file 2
make=^and_LONG/bak12^".
DEV=LONG^cmd/usr/bak/ban3^"
..........................................
file 3... (6 Replies)
here is the contents of bigfile.sql
CREATE TABLE `Table11` (
`id` int(11) NOT NULL ,
`entityName` enum('Lines','EndUsers') COLLATE utf8_unicode_ci NOT NULL,
`parentAllianceMigrationProjectId` varchar(255) NOT NULL
) ENGINE=InnoDB AUTO_INCREMENT=2000 DEFAULT CHARSET=utf8... (30 Replies)
Dear All
I am having a text file which is having more than 200 lines.
EX:
001010122 12000 BIB 12000 11200 1200003
001010122 2000 AND 12000 11200 1200003
001010122 12000 KVB 12000 11200 1200003
In the above file i want to search for string KVB... (5 Replies)
Dear Unix Experts :),
Below is a small section of a large file with the following list:
1. Starts with string " interest" as the heading
2. Followed by a list of activities
3. Ends with a blank line before starting with another different list.
E.g.
Sporting interest
football... (13 Replies)
I understand that the SED command reads all the lines in the file before adding a required line to the end of the file.
Is there another command that adds a line to the end of files without reading the entire file....
SED is increasing the processing time as the number of lines in each of the... (1 Reply)
Hi guys,
I have a text file named file1.txt that is formatted like this:
001 , ID , 20000
002 , Name , Brandon
003 , Phone_Number , 616-234-1999
004 , SSNumber , 234-23-234
005 , Model , Toyota
007 , Engine ,V8
008 , GPS , OFF
and I have file2.txt formatted like this:
... (2 Replies)
Discussion started by: An0mander
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)