Just wondering about a little "quirk" which I seem to have found when using dd (FWIW on that note, I'm using a flash install of Parted Magic to run dd in these tests...)
Thinking about it, there should be some measurable excitement associated with
Code:
dd if=/dev/zero of=/dev/sda* obs=10M
as the wildcard should take out each sda partition in turn.
Indeed, if one has multiple partitions to be wiped (while possibly keeping the boundaries for each), this might appear to be one way of getting the job done without much fuss.
However, using the above commandline, I've seen this output repeated on several different systems instead:
Code:
dd: writing to /dev/sda*': No space left on device
2007040+0 records in
97+1 records out
1027362816 bytes (1.0 GB) copied, 1.25925 s, 816 MB/s
...with what seems to be no overwrite activity whatsoever.
So, the central question is: Why do I always see the same exact records in/out @ 1.0 GB output here, regardless of the target machine/drive? Moreover, what does dd think it's writing to in this case?
Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Hi everyone:
I have built a tcl script, this script communicate with an ADA program trough a socket, sending binary data, the sender proc is this one:
The code where im sending info is here:
proc p_send_data { DATA } {
global connection
puts "Sending trough $connection..."
#... (2 Replies)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
logs:
"/home/abc/public_html/index.php"
"/home/abc/public_html/index.php"
"/home/xyz/public_html/index.php"
"/home/xyz/public_html/index.php"
"/home/xyz/public_html/index.php"
how to use "cut" or "awk" or "sed" to get the following result:
abc
abc
xyz
xyz
xyz (8 Replies)
The system don't boot.
on the screen appears following:
press enter to maintenance (or type CTRL-D to continue)...I checked with format command.
... the slices "0-root","1-swap","2-backup" exist.
...the slises "3-var","6-usr" -unassigned. :( (16 Replies)
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing To e-mail address
and column 3 contains cc e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Hi 2 all,
i have had AIX 7.2
:/# /usr/IBMAHS/bin/apachectl -v
Server version: Apache/2.4.12 (Unix)
Server built: May 25 2015 04:58:27
:/#:/# /usr/IBMAHS/bin/apachectl -M
Loaded Modules:
core_module (static)
so_module (static)
http_module (static)
mpm_worker_module (static)
... (3 Replies)
Discussion started by: penchev
3 Replies
LEARN ABOUT MOJAVE
ppi::token::magic
PPI::Token::Magic(3) User Contributed Perl Documentation PPI::Token::Magic(3)NAME
PPI::Token::Magic - Tokens representing magic variables
INHERITANCE
PPI::Token::Magic
isa PPI::Token::Symbol
isa PPI::Token
isa PPI::Element
SYNOPSIS
# When we say magic variables, we mean these...
$1 $2 $3 $4 $5 $6 $7 $8 $9
$_ $& $` $' $+ @+ %+ $* $. $/ $|
$\ $" $; $% $= $- @- %- $) $#
$~ $^ $: $? $! %! $@ $$ $< $>
$( $0 $[ $] @_ @* $} $, $#+ $#-
$^L $^A $^E $^C $^D $^F $^H
$^I $^M $^N $^O $^P $^R $^S
$^T $^V $^W $^X
DESCRIPTION
"PPI::Token::Magic" is a sub-class of PPI::Token::Symbol which identifies the token as "magic variable", one of the strange and unusual
variables that are connected to "things" behind the scenes.
Some are extremely common, like $_, and others you will quite probably never encounter in your Perl career.
METHODS
The class provides no additional methods, beyond those provided by it's PPI::Token::Symbol, PPI::Token and PPI::Element.
SUPPORT
See the support section in the main module.
AUTHOR
Adam Kennedy <adamk@cpan.org>
COPYRIGHT
Copyright 2001 - 2011 Adam Kennedy.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
perl v5.18.2 2011-02-25 PPI::Token::Magic(3)
10-17-2014
(FWIW on that note, I'm using a flash install of Parted Magic to run dd in these tests...)