08-23-2013
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Here's a challenge for you wizards...
I have a file formatted as follows;
$
What I need to output is;
87654321 Bobby One
12345678 Bobby One
09876543 Bobby One
1107338 Bobby! Two
Any Ideas how I can do this? I've tried sed but I'm not sure if perl might be a better way to... (2 Replies)
Discussion started by: th3g0bl1n
2 Replies
2. Shell Programming and Scripting
hi , i would like to parse some file with the fallowing data :
data data data "unwanted data" data data "unwanted data"
data data data data #unwanted data.
what i want it to have any coments between "" and after # to be erased using awk or/and sed.
has anyone an idea?
thanks. (3 Replies)
Discussion started by: Darsh
3 Replies
3. Shell Programming and Scripting
Hi people!,
I need extract from the file (test-file.txt) the values between
<context> and </context> tag's , the total are 7 lines,but i can only get 5 or 2 lines!!:confused:
Please look my code:
#awk '/context/{flag=1} /\/context/{flag=0} !/context/{ if (flag==1) p
rint $0; }'... (3 Replies)
Discussion started by: ricgamch
3 Replies
4. Shell Programming and Scripting
Hello people, newbie question. I'm trying to parse these type of file
1 "CAR " " C1 " " " 6 0 C1
2 "CAR " " O1A" " " 8 0 O1A
3 "CAR " " O1B" " " 8 -1 O1B
4 "CAR " " C2 " " " 6 0 C2
5 "CAR " " C3 " " " 6 ... (10 Replies)
Discussion started by: aristegui
10 Replies
5. Shell Programming and Scripting
Hi All,
I have a log file like this
E Mon Oct 06 00:17:08 2008 xxx2 cm:10614 fm_pi2_svc_iptv_purchase.c:149 1:pin_deferred_act:10601:11:169:1223245028:16
pi2_op_svc_iptv_purchase error
<location=PIN_ERRLOC_FM:5 class=PIN_ERRCLASS_SYSTEM_DETERMINATE:1... (10 Replies)
Discussion started by: subin_bala
10 Replies
6. Shell Programming and Scripting
Hi Guys,
I need help with processing data in a file, line by line.
My file test.txt has
X_Building_X5946/X0 BUT/U_msp/RdBuMon_d2_B_00 BUT/U_msp/FfRmDaMix_d2_Pi3 Test_Long xp=849.416 yp=245.82 xn=849.488 yn=245.82 w=0.476 l=0.072 fault_layer="Al_T01_Mod" $ $X=849416 $Y=245582... (2 Replies)
Discussion started by: naveen@
2 Replies
7. Shell Programming and Scripting
I want to delete corrupt records from a file through awk or sed.
Can anyone help me with this
Thanks
Striker
Change subject to a descriptive one, ty. (1 Reply)
Discussion started by: Rahul_us
1 Replies
8. Linux
Hi,
I'm working on getting more acquainted with VMWare and the SUSE SLES OS, so I've downloaded and created a guest running SLES 11 SP1. This works great, no problems. However, there's some funny-ness (is that a word?) when I'm attempting/testing to SSH from outside my local LAN into the guest.... (3 Replies)
Discussion started by: brightstorm
3 Replies
9. UNIX for Advanced & Expert Users
I don't necessary have a problem, as I have a solution. It is just that there may be a better solution.
GOAL: Part one: Parse data from a file using the "\" as a delimiter and extracting only the last delimiter. Part two: Parse same file and extract everything but the last delimited item.
... (8 Replies)
Discussion started by: OrangeYaGlad
8 Replies
10. Shell Programming and Scripting
I'm new to shell programming, but I think I learn best by following an example. I'm trying to cook up an awk/sed script, but I obviously lack the required syntax skills to achieve it. The output that I get from running my ksh script looks like this:
I need to search each numbered line for... (10 Replies)
Discussion started by: iskatel
10 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)