OpenSource software should be encouraged more…
Sometimes when creating one-liners, when the source is not “clean”, you may end up with non-ascii characters which make the parsing harder.
To get rid of all of it, you can use perl.
cat dirty-source.txt|perl -pe 's/[^[:ascii:]]//g' > clean-output.txt
The same command can be used on a file[……]
ssconvert is a utility shipped with Gnumeric, and it’s a command line spreadsheet converter.
Let’s say that you have some data in a spreadsheet (eg spreadsheet.ods) and want to be able to easily parse it, and maybe use it in a script.
ssconvert -O 'separator=;' spreadsheet.ods parsable-data.tx[......]
Fed up with websites/tabs continuously reloading themselves and using resources unnecessarily?
Me too!
In firefox, you can disable this from the about:config page.
Look for accessibility.blockautorefresh and set it to true.
Problem solved!
You can also keep an eye on what tab uses most of[……]
for docker in $(docker images|awk '{print $1,$2}'|sed 's/ /:/g'|grep -v REPOSITORY); do docker pull $docker; done
This command updates all your docker images but don’t remove the old versions which have now been updated.
To do that, and clear some unnecessarily used space, you can run the[……]
sudo pip install -U `pip list -o|cut -d ' ' -f1|tr '\n' ' '`
NB: One liners are potentially destructive. Don’t run anything unless you fully understand it.
[……]
I wanted to passthrough a dual tuner TV card (Hauppauge WinTV Nova-T-500) to an openVz container in order to use tvHeadEnd.
Here I show how to achieve it with this particular PCI card but the procedure should be the same for any device.
First you need to know what device/devices you want to pa[……]
Remmina is a remote desktop client that support multiple network protocols (RDP, VNC, NX, XDMCP and SSH) in a nice and very user friendly GUI.
In its basic usage, you only need to know the protocol, the server (domain or IP address), username and password.
For example, this shows how to connec[……]
After having setup an email server (eg: using gmail as smtp server or sendmail as a SMART HOST or any other way you want..) you need to test it.
The quickest way, for me, is to do:
mail -s Test myEmail@gmail.com < /dev/null
This will send an email with no body text.
Enjoy![......]
array_unique removes duplicate values from an array. Unfortunately it doesn’t work with multi-dimensional arrays.
A quick workaround is to serialize all elements of the first/parent array in order to make it unidimensional, let array_unique doing its job and then unserialize it back.
A one lin[……]
If you have logwatch installed (or you read auth.log file) you can find lots of entries mentioning login attempts/attacks.
Something like:
Nov 20 06:30:43 serverName sshd[63467]: Address 91.191.166.95 maps to 91-191-166-95.netdirekt.com.tr, but this does not map back to the address - POSSIBLE BR[......]