I am writing into a file testfile.txt values like
./XXXXXXCZ1/tprcm10c.bin
./XXXXXXCZ1_HOT/tprcm09c.bin
./XXXXXXCZ_cold/tprcm05c.bin
I want to store the values of tprcm*.bin and XXXXXXCZ* in separate variables
Can anybody Pls hlp me out with this ...
Thanks (2 Replies)
hi i am trying to save values in a file in an array in awk..the file is as follows:
0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,
so far i have this:
awk 'BEGIN {RS="\n";FS=","}
{
for(i=1;i<=NR;i++)
{
for(j=1;j<=NF;j++)
{
a=$j;
}
} (4 Replies)
Hello,
Is there any way in awk to put every line of a file in an array and so we can like this print the line we want.
For example, if we have this file
aaa eee
bbb fff
ccc ggg
ddd hhh
So we can print to the output the 3rd line only
ccc ggg
If it is possible, please put the... (7 Replies)
I have a file with the contents below
jan_t=jan;feb_t=feb;mar_t=mar;year=2010
jan_t=null;feb_t=feb;mar_t=mar;year=2010
jan_t=jan;feb_t=feb;mar_t=mar;year=2010
I want to extract out all the fields values ending with "_t" , however, i want to exclude feb_t and mar_t from the results
In... (6 Replies)
Hi all,
I have a single text file, Contig3.fasta, that looks like this:
>NAME1
ACCTGGTA
>NAME2
GGTTGGACA
>NAME3
ATTTTGGGCCAnd It has about 100 items like this in it. What I would like to do is copy each item into 100 different text files, and have them named a certain way
Output... (4 Replies)
Hi folks,
What I have are config files with lines that: are blank, start with a "!" or start with char's(or a blank space and then char's)
I am using ksh
I can display each line by doing:
for INDEX in {0..$LENGTH}
do
echo "${data}"
done
What I need to do requires I can... (12 Replies)
Hi all,
I been looking for a solution to the fact that when I use:
for (i=1; i<=NF; i++) print $ifields that are originally in a single line are printed in a single line
I have severals files for which the first 7 are the same, but the number of variables after that can vary, for example NF... (5 Replies)
Hello,
I have a text file running into around 100 thousand+ lines which has the following rigid structure:
Each field is separated by a comma.
Some examples are given below:
23,Chinttaman Pagare,चिंतमण पगारे
24, Chinttaman Pateel,चिंतामण पाटल
25, Chinttaman Rout,चिंतामण राऊत
26,... (3 Replies)
I have test.sh file as below :
set -A IDARR $ID
echo | awk -f test.awk -v TempArr="${IDARR
}"
I have test.awk file as below :
BEGIN {
Flag = 1;
}
{
print "Hello";
for(i in TempArr)
{
print i;
}
} (9 Replies)
for a in {1..100}
do
awk '{ sum+=$a} END {print sum}' a=$a file1 > file2
done
I know I will get only one number if following the code above, how can I get 100 sum numbers in file2? (2 Replies)
Discussion started by: wanliushao
2 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)