10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I want to use Find command to find directories that have certain name and them find files in that directory having only some extensions. So far, I have come up with this command to list directories with wild card name and list ALL the files in that directory.
find . -type d -name prog\* -print... (11 Replies)
Discussion started by: sssccc
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2. Shell Programming and Scripting
Hi Firends,
I have requirement like find the directories in unix after my my deployment is done.
generally my requirement as follows.
/data/common/scripts is folder and it has multiple scripts in this path.
I have taken the back up of scripts folder as below
/data/common/0816_scripts... (4 Replies)
Discussion started by: victory
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3. UNIX for Dummies Questions & Answers
Hi All,
My server is AIX and i am trying to search for a file in a specific path in directory.
The file name can be of two types:
Position_20131114.csv
Position123333_20131114.csv
I am trying to assign a SOURCEFILE variable as mentioned below:, but i am unable to find/locate the files... (2 Replies)
Discussion started by: abhi_123
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4. Shell Programming and Scripting
Hi,
I am having a file (file1) having following contents
" xet B - All Divers/All Rivers - - ns - "
Now when i use
cat file1 | grep 'RF'
it doesn't returns anything.
But on using
cat file1 | grep 'RF*'
shows me... (6 Replies)
Discussion started by: sarbjit
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5. Shell Programming and Scripting
Hi All,
I would like to find out the existence of files with wild card using CSH.
I have used the below code but does not seem to work.
Can any expert give me some advice ?
set nonomatch
set pattern = "_xxx"
set filetype = ( *$pattern* )
if ( -e $filetype) then
echo... (2 Replies)
Discussion started by: Raynon
2 Replies
6. AIX
Hi,
I want to monitor my filesystem capacity and I want to df with grep wildcard for all 9*%.
Is this possible? I want to replaced all the existing complicated scripts I have in the system.
Thanks,
Itik (2 Replies)
Discussion started by: itik
2 Replies
7. Shell Programming and Scripting
Hi,
Is there a way to use find command to list the directories for certain permissions. I know we can use find . -type d -perm nnn, where nnn is the permission number . However I wold like to know if I wanna search for wild card permissions i.e 75* / 7* / 55* , as i do not know the actual... (1 Reply)
Discussion started by: braindrain
1 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I would like to pass a wild card as part of an argument. But when I do it the script views the wild card as text.
Example:
sFile=MG1A*
sort $sFile > $sFile.sorted
What I get is MG1A*.sorted
The problem is I am passed a series of files where the first few characters like "MG1A"... (2 Replies)
Discussion started by: eja
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9. UNIX for Dummies Questions & Answers
I am trying to cp files that have F0 as prefix in their name in path p1/p2 to path p3/p4
this command does not work - Why? (I am using HP/UX)
cp p1/p2/F0* p3/p4
thanks. (2 Replies)
Discussion started by: GNMIKE
2 Replies
10. UNIX for Dummies Questions & Answers
Hi,
Please help me.
Suppose I have a file which contains files like:
My file :/tmp/rooh_20020518.lst
it consists:
ASI00320225041925URD01
ASI00320225041925KER02
ASI00390228095244KER08 ... (1 Reply)
Discussion started by: rooh
1 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)