i am comparing the output of one command to a numberic
but my problem is the output of follwoing is but but has some leading columns. I don't have any problme in LINUX and HP-UX. But only in AIX i am getting the leading spaces. I have developed my script on LINUX but when i try to run it fails because of this.
I am comparing like above one in many places so what will be the best option without assign the command output to a variable and compare it with another variable.
i.e Is there any way i can directly compare the o/p of command to a certain values in AIX ?
I am trying to strip all leading and trailing spaces of a shell variable using either awk or sed or any other utility, however unscuccessful and need your help.
echo $SH_VAR | command_line Syntax.
The SH_VAR contains embedded spaces which needs to be preserved. I need only for the leading and... (6 Replies)
Hi,
I have a CSV file with footer information as below. The third value is the number of records in the file. Sometimes it contains both leading and trailing white spaces which i want to trim using awk.
C,FOOTER , 00000642
C,FOOTER , 00000707
C, FOOTER,... (2 Replies)
Hi Friends,
Can any one help with this issue:
How to trim spaces for each line at the end,
Like I have a file in this format.
EMP1 SMITH 46373 5 STREET HOWARD 74636
EMP2 JONES 5454 { these are spaces ........}
EMP3 SMITH 46373 5 STREET HOWARD 74636
EMP4 JON 2554 { these are... (1 Reply)
Hi,
I have a problem where I need to append few spaces(say 10 spaces) for each line in a file whose length is say(100 chars) and others leave as it is.
I tried to find the length of each line and then if the length is say 100 chars then tried to write those lines into another file and use a sed... (17 Replies)
Hi,
I'm new to shell programming. Need some help in the following requirement:
I have a file origFile.txt with values:
origFile.txt
.00~ 145416.02~ xyz~ ram kishor
.35~ 765.76~ anh reid~ kishna kerry
Now each row in the file has value for 4 columns with "~" as... (7 Replies)
Hi,
I have a file origFile.txt with values:
origFile.txt
.00~ 145416.02~ xyz~ ram kishor ~? ~ ~783.9
.35~ 765.76~ anh reid~ kelly woodburg ~nancy ~ ~?
Now each row in the file has value for 7 columns with "~" as delimiter.
The requirement was
i)I need to erase the blank spaces between... (2 Replies)
HI Guys
I have written a script using awk to split a file based on some identifier and renaming the file based on two values from specific length. ts a fixed width file.
When I am trying to fetch the values
a = substr($0,11,10)
b = substr($0,21,5);
i am getting spaces in a and b values .... (6 Replies)
I have a file like this.
hari,corporationbank,2234356,syndicate
ravi,indian bank,4567900000000,indianbank,accese
raju,statebank of hyderabad,565866666666666,pause
Here each record has different record length and there are blank spaces... (8 Replies)
Discussion started by: kshari8888
8 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)