I'd like to save the output relelvant to rsyslogd to a file, so I do this:
Nothing is written to the file! I can write the full output to the file:
But I can't pipe the output through grep and then write to a file! How odd. I've also tried awk in place of grep. Any idea what might be causing this? Thanks.
Hi,
I need to use a double grep so to speak. I need to grep for a particular item say BOB and then for each successful result I need to grep for another item say SMITH.
I tried grep "BOB" filename | grep "SMITH"
but it does not seem to work.
I can achieve my desired result using an... (12 Replies)
Hello all,
I've got what I'm pretty sure is a simple problem, but I just can't seem to work past it. I'm trying to use awk to pretty up a log file, and calculate a percentage.
The log file looks like this:
# tail strtovrUsage
20090531-18:15:45 RSreq - 24, RSsuc - 24, RSrun - 78, RSerr -... (4 Replies)
I have some complication with this, I have a file like below for DEV_1 till DEV_10. and the db values are set accordinly which are not unique. For example DEV1,DEV4,DEV6 can have the same target DB name.
I waned to identify for DEV_2 and then replace the TARGET_DATABASE value with the new DB... (6 Replies)
Hi people,
I have a file status.txt:
Following 6 ports are totally or partially unavailable:
------------------------------------------------------------
MOD LINK PORTNAMES STAT1 STAT2 STAT3 SYN TYPE
------------------------------------------------------------
8 Pr37 ... (12 Replies)
Hi -- I'm looking to write to a file after piping output from tail -f through to grep:
#write to a file for all lines with "searchtext" within in error_log:
Expand|Select|Wrap|Line Numbers
tail -f /var/error_log | grep searchtext > output.txt
The above command... (2 Replies)
Hi everybody,
I have a big file with blast results (if you know what this means, otherwise look at it just as a text file with a specific form).
I am trying to extract some ids from within this file, which have certain parameters.
For example, some Of my IDs have the term 'No hit results'... (1 Reply)
Hi everybody,
I have a big file with blast results (if you know what this means, otherwise look at it just as a text file with a specific form).
I am trying to extract some ids from within this file, which have certain parameters.
For example, some Of my IDs have the term 'No hit results'... (6 Replies)
I am trying to extract the file names alone, for example "TVLI_STATS_NRT_XLSTWS03_20120215_132629.csv", from below output
which was given by the grep.
sam:/data/log: grep "C10_Subscribe.000|subscribe|newfile|" PDEWG511_TVLI_JOB_STATS.ksh.201202*
Output:
... (6 Replies)
Hi,
I have a number of files containing the information below.
"""""
Fundallinfo
6.3950 14.9715 14.0482
"""""
I would like to grep for Fundallinfo and use it to read the next line? I ideally would like to read the three numbers that follow in the next line and... (2 Replies)
cat file
1 aaa
2 bbb
3 ccc
4 ddd
In TextEdit, I then copy the characters “ccc” to the clipboard. The problem is that the following command gives no output:
bash-3.2$ pbpaste | grep - file
Desired output:
3 ccc
What should the syntax be for that command? I am using MacOS El... (3 Replies)
Discussion started by: palex
3 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)