10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
I need to cut a specific pattern from a line irrespecitve of knowing field place.
I am aware to cut field if you know the place of the field, but for me The sting place varies.
1468129514436,0,something_error,Non HTTP response code: java.net.URISyntaxException,Non HTTP response... (5 Replies)
Discussion started by: mirwasim
5 Replies
2. Shell Programming and Scripting
my requirement is,
consider a file output
cat output
blah sdjfhjkd jsdfhjksdh
sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf
hellow there
this doesnt look good
et cetc etc
etcetera
i want to replace a line of line number 4 ("this doesnt look good") with some other line
... (3 Replies)
Discussion started by: vivek d r
3 Replies
3. Shell Programming and Scripting
Hi All,
I've a file like this..
Sheet1
a,1
a,2
a,3
a,4
a,5
Sheet2
a,6
a,7
a,8
a,9
a,10
Sheet3
a,11
a,12
a,13 (7 Replies)
Discussion started by: manab86
7 Replies
4. Shell Programming and Scripting
Hello All,
I have following file contents
cat file
#line=aaaaaa
#line=bbbbbb
#line=cccccc
#line=dddddd
line=eeeeee
#comment=11111
#comment=22222
#comment=33333
#comment=44444
comment=55555
Testing script
Good Luck!
I would like to comment line line=eeeeee and insert a new line... (19 Replies)
Discussion started by: manishdivs
19 Replies
5. Shell Programming and Scripting
Hi guys,
I have been trying to do this, but... no luck so maybe you can help me.
I have a line like this:
Total Handled, Received, on queue Input Mgs: 140 / 14 => 0
I need to, get the number after the / until the =, to get only 14 .
Any help is greatly appreciated.
Thanks, (4 Replies)
Discussion started by: ocramas
4 Replies
6. Shell Programming and Scripting
Say the input was as follows:
Brat 20 x 1000 32rf
Pour 15 p 1621 05pr
Dart 10 z 1111 22xx
My program prompts for an input, what I want is to use the input to locate a specific field. Like if I type in, "Pou" then it would return "Pour" and just "Pour"
I currently have this line but it is... (6 Replies)
Discussion started by: Bungkai
6 Replies
7. Shell Programming and Scripting
First I have to say thank you to this community and this forum. You helped me very much builing several useful scripts.
Now, I can't get a solution the following problem, I'm stuck somehow. Maybe someone has an idea.
In short, I dump a site via lynx and pipe the output in a file. I need to... (7 Replies)
Discussion started by: lowmaster
7 Replies
8. Shell Programming and Scripting
i need to cut the string in a textfile but each line has a specific way of cutting it (different lengths)
i have a for loop that gets the string line per line, then each line has to be compared:
for x in `cat tmp2.txt`; do
if; then
echo 'BAC'
elif
... (6 Replies)
Discussion started by: izuma
6 Replies
9. Shell Programming and Scripting
Hi,
I need to remove a specific line from a file.. For eg: From the html codings, I need to find the word "iframe frameborder" and cut it . I tried with
find . -type f -exec grep -H 'iframe frameborder' {} \; > <filename>
From the output of this result, I need to remove the "iframe... (14 Replies)
Discussion started by: gsiva
14 Replies
10. Shell Programming and Scripting
I've got a file that would have lines similar to:
12345678 x.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00
23456781 x.00 xx.00 xx.00 xx.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00
34567812 x.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00
45678123 x.00 xx.00 xx.00 xx.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00 xx.00... (10 Replies)
Discussion started by: Cailet
10 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)