I would like to know value for previous row, in addition to current row.
How would I will get value for previous row? How can I perform this with awk? (2 Replies)
Hello,
I have 2 files. File1 has data I wrote, and File2 is a file created by an application. I would like to insert the data from File1 into File2, but it has to be inserted at a certain location on File2.
I know I need to search for
"</jsp-param>
</jsp-descriptor>"
But I don't know... (4 Replies)
Hi
I need to do some thing like "find and insert before that " in a file which contains many records. This will be clear with the following example.
The original data record should be some thing like this
60119827 RTMS_LOCATION_CDR INSTANT_POSITION_QUERY 1236574686123083rtmssrv7 ... (8 Replies)
Hi,
I am having trouble converting a text file. I have been working for this whole day now, still i couldn't make it.
Here is how the text file looks:
_______________________________________________________
DEVICE STATUS INFORMATION FOR LOCATION 1:
OPER STATES: Disabled E:Enabled ... (5 Replies)
Hi
Is it possible to do the following in a single command
/usr/xpg4/bin/sed -e '/rows selected/d' /aemu/CALLAUTO/callauto.txt > /aemu/CALLAUTO/callautonew.txt
/usr/xpg4/bin/sed -e '/^$/d' /aemu/CALLAUTO/callautonew.txt > /aemu/CALLAUTO/callauto_new.txt
exit (1 Reply)
I'm trying to use sed to insert data at a specific column, let's say my data looks like this:
0553 1828
0552 1829
0550 1829
0549 1830
0548 1831
what I want is this:
timein 0553 timeout 1828
timein 0552 timeout 1829
timein 0550 timeout 1829
timein 0549 timeout 1830
timein 0548... (5 Replies)
I have data like:
Blue Apple 6
Red Apple 7
Yellow Apple 8
Green Banana 2
Purple Banana 8
Orange Pear 11
What I want to do is if $2 in a row is the same as $2 in the previous row remove that row. An identical $2 may exist more than one time.
So the out file would look like:
Blue... (4 Replies)
Hi, I want to move a new row to another table if the field from new row doesn't have the first word that I categorized (like: IRC blablabla, PTM blablabla, ADM blablabla, BS blablabla).
I already use this script but doesn't work as I expected.
CHECK_KEYWORD="$( mysql -uroot -p123456 smsd -N... (7 Replies)
Hi, I already succeed moving a new row to another table if the field from new row doesn't have the first word that I categorized (like: IRC blablabla, PTM blablabla, ADM blablabla, BS blablabla).
But it can't delete the old row. Please help me with the script.
my php script:
INSERT INTO... (2 Replies)
Dear Team
I need to insert field(which is need to taken from previous line's first field) in first column if its blank. I had tried using sed but not find the way. Detail input and output file as below.
Kindly help for same.
INPUT:
SCGR SC DEV DEV1 NUMDEV DCP ... (7 Replies)
Discussion started by: jaydeep_sadaria
7 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)