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1. Shell Programming and Scripting
I have a file and want to split it using a 2-D index system
for example
if the file is p.dat with 6 data sets separated by ">".
I want to set nx=3, ny=2. I need to create files
p.dat.1.1
p.dat.1.2
p.dat.1.3
p.dat.2.1
p.dat.2.2
p.dat.2.3
I have tried using a single index and want... (3 Replies)
Discussion started by: kristinu
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2. Shell Programming and Scripting
Hi friends,
I have one file like below. (.csv type)
SNo,data1,data2
1,1,2
2,2,3
3,3,2
and another file like below.
Exclude
data1
where Exclude should be treated as column name in file2.
I want the output shown below.
SNo,data2
1,2
2,3
3,2
Where my data1 column got removed from... (2 Replies)
Discussion started by: ks_reddy
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3. UNIX for Dummies Questions & Answers
Hi,
I am looking for an awk script which should help me to meet the following requirement:
File1 has records in following format
INF: FAILEd RECORD AB1234
INF: FAILEd RECORD PQ1145
INF: FAILEd RECORD AB3215
INF: FAILEd RECORD AB6114
............................ (2 Replies)
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4. Shell Programming and Scripting
hello guys,
I have a file like this:
input.dat
Push-to-talk
No
Coonection
IP support
Support for IP telephony
Yes
Built-in SIP stack
Yes
Support via software
Yes
Microsoft
Support for Microsoft Exchange
Yes
UMA (5 Replies)
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5. Shell Programming and Scripting
Hey all,
I'm doing a project currently and want to index words in a webpage.
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example:
Webpage content data.html
... (2 Replies)
Discussion started by: Johanni
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6. Shell Programming and Scripting
hi all,
please help on this isssue, i have a file which contains something like this
and i want to seprate the servers which has vasd.pid ,i need only server names.
i want output something like this which vasd.pid .
server1
server3
server4 (4 Replies)
Discussion started by: sudharson
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7. UNIX for Dummies Questions & Answers
I have a list of directories looking something like;
/usr/local/1/in
/usr/local/1/out
/usr/local/1/archive
/usr/local/2/in
/usr/local/2/out
/usr/local/2/archive
/usr/local/3/in
/usr/local/3/out
/usr/local/3/archive
Is there a way I can filter the out and archive directories so I... (5 Replies)
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8. UNIX for Dummies Questions & Answers
Hi,
Iam trying to filter a log file in the below format
|fffff|hhhhh|ffff|dd|mm|yy|hh|min||dd|mm|yy|hh|min
the first set of |dd|mm|yy|hh|min is when the application ran
the second set of |dd|mm|yy|hh|min when it ended.
I will be removing the last of the months in the log file to... (1 Reply)
Discussion started by: baanprog
1 Replies
9. Shell Programming and Scripting
So here is goes to the Gurus of shell programming......I have tried a lot of different ways and its a very challenging code to write but i am enjoying it as i troubleshoot and hopefully someone can provide me a better option....Thank you in advance for your time and support....Much appreciated...
... (12 Replies)
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10. UNIX for Dummies Questions & Answers
--------------------------------------------------------------------------------
Hi,
Plz help me out with this.
I have some requirement like this.....
I have a file like this...
* CS sent email (11.20)
CALYPSO 1031276 9076673 CDSHY FAILED Nov 19 2007 7:28AM OASYS: Unable to find CUSTOMER... (0 Replies)
Discussion started by: adityam
0 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)