Archive for the ‘Linux’ Category
Posted by jpluimers on 2014/03/24
Blast from the past, and happy I found back the original blog that pointed me to this: Not a complete failure » Blog Archive » How to copy a file with I/O errors?.
A long while ago, I helped out a friend with a HDD that was partially working. He neede the bits of a file that had become unreadable by regular means.
dd to the rescue: it takes a lot longer, but gets the job done eventually. Eventually can be T+eternity.
Note that you always should copy such a file to another drive, like described in the above blog.
Something like this (the parameters are explained at the dd man page):
dd if=/mounting-path/directory-path/damaged.mp4 of=resurrected.mp4 conv=noerror,sync
Usually for creating disk images, dd works on *n*x, Mac OS X, Windows with for instance Cygwin, ESXi, etc.
See also: linux – Rescuing a hdd with bad sectors: dd vs gddrescue – Super User.
–jeroen
via: Not a complete failure » Blog Archive » How to copy a file with I/O errors?.
Posted in *nix, Apple, Cygwin, ESXi4, ESXi5, ESXi5.1, ESXi5.5, Linux, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Power User, SuSE Linux, VMware, VMware ESXi | Leave a Comment »
Posted by jpluimers on 2014/03/07
lesspipe is a great tool:
lesspipe.sh is an input filter for the pager less as described in less‘s man page. The script allows you to view files with binary content, compressed files, archives and files contained in archives.
… however getting it to run on OpenSUSE was a bit of a journey as it is not part of the standard OpenSUSE 12.x repository. You can only get ‘unstable’ lesspipe packages, of which the Show home:adra / lesspipe – openSUSE Build Service seems to be maintained most frequently.
This is how to install it from there: Read the rest of this entry »
Posted in *nix, bash, Development, Linux, openSuSE, Power User, Scripting, Software Development, SuSE Linux | 2 Comments »
Posted by jpluimers on 2014/02/13
Just append -O and -v to a command-line:
nmap -O -v ip-address
Note you need administrative privileges for this on Mac OS X, so there you run it like this:
sudo nmap -O -v ip-address
If you want to scan more than the default 1000 TCP ports, then use the -p- switch:
sudo nmap -O -v -p- ip-address
For more info about the finger printing algorithms used by nmap:
–jeroen
via: Usage and Examples.
Posted in *nix, Apple, Linux, Mac OS X / OS X / MacOS, Mac OS X 10.7 Lion, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Power User, SuSE Linux | Tagged: administrative privileges, nmap | Leave a Comment »
Posted by jpluimers on 2014/02/03
This is brilliant for learning *nix shell programming:
explainshell.com – match command-line arguments to their help text
explainshell is a tool (with a web interface) capable of parsing man pages, extracting options and explain a given command-line by matching each argument to the relevant help text in the man page.
It has open source code at gitub too: idank/explainshell.
–jeroen
Posted in *nix, Development, Linux, Power User, Scripting, Sh Shell, Software Development, SuSE Linux | Leave a Comment »
Posted by jpluimers on 2014/01/26
A long time ago I wrote about openSUSE 12.x: “A plain halt will not shutdown the system properly.” « The Wiert Corner – irregular stream of stuff.
Well, today, for the very first time, a plain “reboot” didn’t work on this system either showing the same symptom as the “halt”: it would shutdown all services, but not perform an ACPI power cycle.
Luckily the system is still on ESXi, so I could reboot using the ESXi vSphere client.
–jeroen
Posted in *nix, Linux, openSuSE, Power User, SuSE Linux | 1 Comment »
Posted by jpluimers on 2014/01/26
When doing virtual sendmail hosting, in the domain based virtusertable file, you setup a domain based alias to point to a local alias:
foo.and.bar@example.org foo.and.bar
In the local aliases file, you setup a local alias to redirect to multiple addresses (or other aliases redirecting features):
foo.and.bar: foo@example.org, bar@example.org
–jeroen
Posted in *nix, Linux, Power User, SuSE Linux | Leave a Comment »
Posted by jpluimers on 2014/01/26
Sometimes you get this when starting yast2:
System management is locked by the application with pid #### (@@@@@@).
Close this application before trying again.
This means another yast2 process with pid #### and name @@@@@@ is active, or hasn’t shut down properly.
@@@@@@ usually equals /usr/lib/YaST2/bin/y2base or /usr/sbin/packagekitd.
First, view what the process is about by issusing this ps command that shows you a bit more context around the single pid ####: Read the rest of this entry »
Posted in *nix, Linux, Power User, SuSE Linux | Leave a Comment »
Posted by jpluimers on 2014/01/26
Annoying issue when suddenly the cursor on your OpenSUSE terminal session is gone, but the fix is simple run <a href="http://linux.about.com/library/cmd/blcmdl1_reset.htm" target="_blank" rel="noopener">reset</a>:
it’s possible that your TTY has been mangled by some other program you’ve run. Try running reset and then clear (or ctrl-L) to initialize your terminal.
–jeroen
via: terminal emulator – What is making my cursor ‘randomly’ disappear when using gnome-teminal? – Unix & Linux Stack Exchange.
Posted in *nix, Linux, openSuSE, Power User, SuSE Linux | Tagged: terminal emulator, terminal session, TTY | Leave a Comment »
The Wiert Corner - irregular stream of stuff 