When I start ed as regular user, following message is displayed:
I think, following error produced in vi when search results from previous error:
Setting TMPDIR variable cause no effect.
Hi all,
I run RedHat. Not a long ago it has started to give me message on the screen "Unable to load an interpreter". Just plain message. I checked log files. I havent found anything strange in there. Any suggestions what it might mean and how to get rid of it?
Thank you all. (6 Replies)
Hi,
When I give the following
$ ps -ef | grep `echo $var1` | grep -v "grep `echo $var1`" | awk '{print $3}' | grep -v `echo $var1
80892
But when I give the following (made as command substitution) , I get error
$var2=`ps -ef | grep `echo $var1` |... (2 Replies)
hi,
when i try to compile, i got the following error message, what does it mean?
$gcc auto.cpp
/usr/tmp/ccmuE12B.o(.eh_frame+0x11): undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status
thanks (1 Reply)
Hi all,
i executed a script.
cat <filename> | grep <pattern> | awk '{print $1}' | read a
i get the answer when i execute it in the shell env (no problem with that)
as
./<name>.ksh
when i tried the same in cron (as an entry in cron)
value is not being read in the variable a through... (1 Reply)
Hi all,
I have a script where i need to check the format of a string.
finally, i'm waiting a "process name" and 2 numbers separated by a ","
string like : "this_is_a_string.txt,1,10 should be ok"
string ok : "apache.exe,1,10"
string ok : "mysqld,50,0"
string not ok : "ap ache,1,10"... (4 Replies)
Dear all,
when I issue the command:
gunzip -c file.gz |sort
the command is executed normally and correctly but a message keeps appearing everytime I run the command:
the message:
sort: missing NEWLINE added at end of input file STDIN
Does anyone know what is the meaning of this message?... (3 Replies)
We are getting this message on our AIX box. No one knows where its coming from. Where can I find any information on it?
Warning: file system free space is less than 10
file system total size = -2621440
file system available space = 2485160
file system used space = -5106592
file system... (3 Replies)
I am receiving an error when i type the command dmesg
sudo: sysmon : pam_authenticate: Conversation failure ; TTY=unknown ; PWD=/export/home/sysmon ; USER=root ; COMMAND=/opt/scripts/cronmgmt/synch_crontab.ksh
Whats it about and how can I remove it ? (1 Reply)
I have a code:
if
then#{ process daily files
for file in *_${Today}*.csv *_${Today}*.txt
do
if ||
then
echo "This file will be processed in separate script"
continue
fi
if ;then
... (2 Replies)
Discussion started by: digioleg54
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)