Hi,
how can I skip the new line of echo? In SH!!!!
echo "the date is :"
date
and result I want is
the date is : Tue Oct 11 22:24:37 WEST 2005
I've already tried including the \c inside the echo, but it didn't work.
Thanks! (2 Replies)
How can I exclude reading lines in a file that contains the following:
filesystem:/home/pach/liv_patches 128005120 88456640 37270758 71% /home/patches
That is, all lines that contain and begins with filesystem: should not be processed/read from a file (5 Replies)
hi,
I have a shell script that searches for a particular pattern in all the files inside a directory, and gives the count of that pattern occurences in a file.
Now i should not count the pattern if it exists in side a { .... }, as shown below.
{
......
.....
.... PATTERN1.......... (1 Reply)
Hi,
I have a file:
file.txt
1 word
2 word
word
word
3 word
4 word
and I would like to create a set:
set number = `cut -d" " -f1 ${1}` #${1} is the text file
but it should only contain the lines which begin with numbers,
and another set which contains the lines which begin with... (10 Replies)
Im trying to ssh to a remote machine to grep 'x info' *.log and Im able to get the grep output as expected but "after" the policies (1st 14 lines) - I need to skip the first 14 lines.
Its SunOS.
Plz help??? (1 Reply)
Im trying to ssh to a remote machine to grep 'x info' *.log and Im able to get the grep output as expected but "after" the policies (1st 14 lines) - I need to skip the first 14 lines.
Its SunOS.
Plz help??? (7 Replies)
I am not sure what I am doing wrong here, I did some research and only confused myself further. Any help would be greatly appreciated. I need to make this work for work tomorrow.
There are only 34 lines of code in this script, yet its complaining about line 35
Here is the code:
... (7 Replies)
Hi Experts,
I am tryin to read a file and while doing so i need to skip the lines which start with a hash (#) char.
I thought of using a goto command but a lot of guys on this site say its not the good way to program. Moreover I am using a ksh shell which deos not support goto command.
... (4 Replies)
Hello,
I am new to AWK and in UNIX in general. I am hoping you can help me out here.
Here is my data:
root@ubuntu:~# cat circuits.list
WORD1
AA
BB
CC
DD
Active
ISP1
ISP NAME1
XX-XXXXXX1
WORD1
AA
BB
CC (9 Replies)
Discussion started by: tattoostreet
9 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)