I have a logic like this
It initializes the flag variable as "T" at the beginning of the loop everytime
Inside each loop it checks for two conditions and updates the flag variable as "A" or "B"
In the end of the loop it checks for the value of the variable flag for "A" or "B" and execute... (4 Replies)
Hi,
I have variables like
var1
var2
var3
var4
in
if loop i am trying to check the condition
if(variable == "var") then
echo $variable
endif (0 Replies)
Gurus,
I need to read a line from a file and strip the characters from it and compare the stripped value with the value I pass to the script while executing it. Below is the code for the same. But when i execute the code, it is throwing an error.
#!/bin/ksh
. /home/.i_env
... (14 Replies)
hi all,
i have a problem...no dream :-)
i want to scan a file i use the loop famous
while read line
do
do < myfile
but this scan must finish when find the another string .
How can i do it?
best regards for all.
Francesco
Please use descriptive subjects. "script." doesn't tell... (5 Replies)
Hi,
I am in trouble. I can get inside my condition test inside a loop :
I am in ksh (solaris)
while read file
do
<commande to retrieve file> >> ${LOG_RETRIEVE_FILE.log}
msg_err=$(cat ${LOG_RETRIEVE_FILE.log} | grep "error retrieve")
if ; then
<sendmail>
exit 1
fi
done
I tried... (6 Replies)
Hi,
I have a file in the following format
"SYLVESTER,WILLARD G"|"S00633600"|"221052958A"|"H2256"|"015"|""|"00000042BASJ"|"665303"|"N"|"20100211"|"380.4"|""|""|""|"5400"|"20110218"|""|"20110218"|"FEESC"|"D"|"F"|"P"
"PURINGTON-KELLEY,C"|"S00808783"|"029424717A"|"H2256"|"024"|"MEMBER JOINED... (3 Replies)
Hi,
I was trying to write a shell script which reads csv file and sends mail in html format along with tables. Hope i have completed 1st part , but while sending mail i was trying to highlight some rows in the table based on the egrep outcome. If the string exists in line/INPUT, i am trying to... (4 Replies)
Hi,
I Have to check two condition in while loop every 2 minutes. while loop is accompanied with number of times it will check.Please help in putting the two condition in while loop as appropriate.
z= input value,
A=1
while
do
1.check the file output,if the file output is N then keep on... (2 Replies)
Discussion started by: netdbaind
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)