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1. UNIX for Dummies Questions & Answers
i have a snippet from server log delimited by forward slash.
/a/b/c/d/filename
i need to cut until last delimiter. So desired output should look like:
/a/b/c/d
can you please help?
Thanks in advance. (7 Replies)
Discussion started by: alpha_1
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2. UNIX for Dummies Questions & Answers
I have a file that has two columns. I first column is an identifier and the second is a column of strings. I want to split the characters in the second column into substrings of length 5. So if the first line of the file has a string of length 10, the output should have the identifier repeated 2... (3 Replies)
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3. Shell Programming and Scripting
Hi All,
There is a file with a data. If the line is longer than 'n', we splitting the line on the parts and print them. Each of the parts is less than or equal 'n'.
For example:
n = 2;
"ABCDEFGHIJK" -> length 11
Results:
"AB" "CD" EF" GH" "IJ" "K"
Code, but there are some errors.... (9 Replies)
Discussion started by: booyaka
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4. Shell Programming and Scripting
Hello everyone,
Maybe somebody could help me with an awk script.
I have this input (field separator is comma ","):
547894982,M|N|J,U|Q|P,98,101,0,1,1
234900027,M|N|J,U|Q|P,98,101,0,1,1
234900023,M|N|J,U|Q|P,98,54,3,1,1
234900028,M|H|J,S|Q|P,98,101,0,1,1
234900030,M|N|J,U|F|P,98,101,0,1,1... (2 Replies)
Discussion started by: Ophiuchus
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5. Shell Programming and Scripting
Dear all,
I am working with names and I have a large file of names in which some words are written together (upto 4 or 5) and their corresponding single forms are also present in the word-list.
An example would make this clear
annamarie
mariechristine
johnsmith
johnjoseph smith
john
smith... (8 Replies)
Discussion started by: gimley
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6. Shell Programming and Scripting
Hello,
I have a complex problem. I have a file in which words have been joined together:
Theboy ranslowly
I want to be able to correctly split the words using a lookup file in which all the words occur:
the
boy
ran
slowly
slow
put
child
ly
The lookup file which is meant for look up... (21 Replies)
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7. Shell Programming and Scripting
Hi,
I am trying to split the words having the delimiter as colon ';' in to separate files using awk.
Here's my code.
echo "f1;f2;f3" | awk '/;/{c=sprintf("%02d",++i); close("out" c)} {print > "out" c}'
echo "f1;f2;f3" | awk -v i=0 '/;/{close("out"i); i++; next} {print > "out"i}'
But... (4 Replies)
Discussion started by: royalibrahim
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8. Shell Programming and Scripting
Hi,
I have a string like this in a file,
I want to retrive the words separated by comma's in 3 variables. like
How do i get that.plz advice (2 Replies)
Discussion started by: suresh_kb211
2 Replies
9. Programming
Hi All
I need help writing a Java program to split strings reading from a FILE and writing output into a FILE. e.g.,
My input is :
International NNP
Rockwell NNP
Corp. NNP
's POS
Tulsa NNP
unit NN
said VBDExpected output is:
International I In Int Inte l al... (2 Replies)
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10. UNIX for Dummies Questions & Answers
Hi you,
I have the following problem:
I have a string like the followings: '166Mhz' or '128MB' or '300sec' or ...
What I want to do is, I want to split the strings in a part with the numbers and a part with letters.
Since the strings are not allway three digits and than text i couldn't do... (3 Replies)
Discussion started by: bensky
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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)