FOR: Windows NT 4
I want perl to read a directory. there is suposed to be two files in the folder ( file1.ini and file2.ini ) and i want perl to print "Files present" or "Files NOT present" to a text document ( report.txt )
how do i do it.? (2 Replies)
dear
i have one file regarding
>abshabja>sdksjbs>sknakna>snajxcls
so i want to be output like
>abshabja
>sjkabjb
>sknakna
>snajxcls
Any using awk or sed will help
thanks (2 Replies)
Hello guys,
I would appreciate if someone can help me to write a shell script using sed. From a larget text file I need to print a fixed value of a word. In another words whenever it finds that word, it needs to grab the other line containing "dn" and prints its value. For example:
dn:... (7 Replies)
Hello!
Im trying to read file contents. Then, print out every line that has "/bens/here" in the file that was read.
cat /my/file.now | sed '/bens/here/p'
I keep getting the error asking if I need to predeclare sed?
What does predeclaring sed mean?
Thanks!
Ben (2 Replies)
I'm using sed to pull links from a rather large html file, and so far it's working rather well, but I've noticed that it is skipping some links.
On some lines there are multiple links for example:
It is completely skipping the first link in these.
Here is what I'm using:
sed 's/^.*<a... (4 Replies)
I am trying to get a summary of filetypes in a directory, but the total count of symbolic links is not working. I am stuck at the results of the file command. I have used the find command to confirm my expectations, but my bash function is not giving the results I want.
Here is my function:... (2 Replies)
I am trying to replace exact word from my text. I know using the angled brackets does the trick. But it is not working when there is a dot in the text.
echo "Bottle BottleWater Bottle Can" | sed 's/\<Bottle\>//g'
BottleWater CanBut if my data has a dot or hash in it, it replaces all the... (10 Replies)
I have multi line input(var1) and reference(var2) variables.
How to capture lines not present in var2 but present in var1?
How to capture lines present var2 but not in var1?
# configuration from server
var1="""
Custom JAX-RS
Custom Shared
Web 2.0
"""
# required configuration... (6 Replies)
Trying to use sed to insert the contents of a file into the end of each line in another file
file1
This is a line
Here is another line
This is yet another line
Here is a fourth line
file2
TEXT
desired output
This is a line TEXT
Here is another line TEXT
This is yet another... (6 Replies)
Discussion started by: jimmyf
6 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)