Works for me

linux bulk prefix filenames

2020-09-14T01:58:00.004+03:00

In order to bulk add prefix to filenames in a directory run the following comnmand

for f in * ; do mv -- "$f" "2018-05-24_$f" ; done

*solution taken from: https://stackoverflow.com/a/4787428

Installing nodejs 13 on linux mint

2019-12-11T23:33:00.002+02:00

Installing nodejs 13 on linux mint

by default the sudo apt-get install -y nodejs will install v8.10.0
in order to install version 13 you need to add the v13 repository to the update manager

In the terminal type:
curl -sL https://deb.nodesource.com/setup_13.x | sudo -E bash -

then run:

sudo apt-get install -y nodejs

That's it,

sql joins

2019-11-26T11:46:00.000+02:00

Inner join:

SELECT users.name, phones.phone FROM `phones` INNER JOIN users ON users.ID = phones.userID

Left join:

SELECT users.name, phones.phone FROM `users` LEFT JOIN `phones` ON users.ID = phones.userID

Right join:

SELECT users.name, phones.phone FROM users RIGHT JOIN phones ON users.ID = phones.userID

Creating local virtual directory

2019-09-03T00:56:00.003+03:00

#Create soft link:
ln -s /path/to/real/folder /path/to/symbolic/link

# Example:
ln -s /path/to/real/folder /var/www/html/symbolic_link
------------------------------------------------------------------------------------------------

#add virtual domain to yor local machine (hosts file)

sudo nano /etc/hosts
------------------------------------------------------------------------------------------------
# add to follow line and save the file:

127.0.0.1 the-domain-that-you-want-to-add.com

------------------------------------------------------------------------------------------------
#configure your apache to work with the new configured domain in the hosts file

sudo nano /etc/apache2/sites-available/000-default.conf
------------------------------------------------------------------------------------------------
#add the following configuration

<VirtualHost *:80>

    ServerAdmin your@email.com

    ServerName the-domain-that-you-want-to-add.com

    ServerAlias www.the-domain-that-you-want-to-add.com

    DocumentRoot /var/www/html/symbolic_link

    ErrorLog ${APACHE_LOG_DIR}/error.log

    CustomLog ${APACHE_LOG_DIR}/access.log combined

                <Directory /var/www/html/symbolic_link>

                                Options Indexes FollowSymLinks MultiViews

                                AllowOverride All

                                Order allow,deny

                                allow from all

                </Directory>

</VirtualHost>

------------------------------------------------------------------------------------------------

that's it
Now open your browser and navigate to http://the-domain-that-you-want-to-add.com

Check max profit by buying & selling day

2017-07-13T00:20:00.001+03:00

See the Pen Check max profit by buying & selling day by Ariel Barkan (@ArielBarkan) on CodePen.

JS Inheritance OOP

2017-07-08T05:07:00.003+03:00

See the Pen JS Inheritance OOP by Ariel Barkan (@ArielBarkan) on CodePen.

Creating Array of Objects + search

2017-07-08T01:10:00.003+03:00

See the Pen Creating Array of Objects + search by Ariel Barkan (@ArielBarkan) on CodePen.

2017-07-07T23:44:00.001+03:00

JS Bin on jsbin.com

Chrome Developer tools > make readable minified JavaScript with Pretty print {}

2017-01-17T00:05:00.004+02:00

Chrome Developer tools > Sources tab > Select the minified JavaScript > click the curly brackets {} at the bottom

Linux mint: can't access a shared partition created by the Windows partition

2016-06-02T10:15:00.001+03:00

How yo fix it:
Type in your terminal: : sudo ntfsfix /dev/sda7

Error mounting /dev/sda7 at /media/ariel/shared: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177" "/dev/sda5" "/media/ariel/shared"' exited with non-zero exit status 14: The disk contains an unclean file system (0, 0).
Metadata kept in Windows cache, refused to mount.
Failed to mount '/dev/sda7': Operation not permitted
The NTFS partition is in an unsafe state. Please resume and shutdown
Windows fully (no hibernation or fast restarting), or mount the volume
read-only with the 'ro' mount option.

This is the error message:

This is the solution:

Upgrading from Linux Mint 17.2 “Rafaela” to Linux Mint 17.3 “Rosa”

2015-12-03T10:54:00.002+02:00

ORIGIN : http://sourcedigit.com/17812-linux-mint-17-3-rosa-download-upgrade/

First of all, run the following commands to update the system to the current stable state:


 $ sudo apt update
 $ sudo apt upgrade
 $ sudo reboot

After updating the system, we need to update the distribution code (change the name of the official repositories for Rosa packages). Run the following commands to do so:


 $ sudo sed -i 's/rafaela/rosa/' /etc/apt/sources.list
 $ sudo sed -i 's/rafaela/rosa/' /etc/apt/sources.list.d/official-package-repositories.list

Finally, run the commands to update the system files and the distribution package:


 $ sudo apt update
 $ sudo apt upgrade
 $ sudo apt dist-upgrade

Once the system-update process is complete, restart the system – manually or use the command “sudo reboot” (without quotes).

Running Fiddler on Linux

2015-11-09T00:36:00.001+02:00

http://blog.michaelhidalgo.info/2015/06/fiddler-up-and-running-on-linux-mint.html?m=1

The Ultimate Guide to Ideal Image Sizes for Social Media Posts

2015-10-13T19:12:00.001+03:00

The Ultimate Guide to Ideal Image Sizes for Social Media Posts

apt-get warning: No support for locale: en_US.utf8

2015-10-03T00:09:00.000+03:00

http://askubuntu.com/questions/99651/apt-get-warning-no-support-for-locale-en-us-utf8

Google Event 2015 - Nexus 6P 5X Marshmallow Chromecast

2015-09-29T20:31:00.001+03:00

Google Event 2015 - Nexus 6P 5X Marshmallow Chromecast

Getting the windows serial number from the BIOS while running Linux mint*

2015-08-02T15:36:00.001+03:00

Copy & paste (ctrl+shift+V) into your terminal window

sudo hd /sys/firmware/acpi/tables/MSDM

*Might work on other Linux distributions.

Solved my battery calibration on lenovo z-80 and linux mint 17,2

2015-07-05T15:34:00.001+03:00

http://forums.linuxmint.com/viewtopic.php?f=49&t=160379

PHP mail() function enable on DigitalOcean.com

2015-05-25T17:07:00.000+03:00

log has root or use sudo apt-get install php-pear
pear install mail
pear install Net_SMTP
pear install Auth_SASL
pear install mail_mime
apt-get install postfix
vi /etc/php5/apache2/php.ini (set sendmail path to /usr/sbin/sendmail -t -i)
Reboot apache gracefully apachectl graceful

Thanks to info, original answer at https://www.digitalocean.com/community/questions/php-mail-function-enable

Clear sound on electric guitar amplifier fender mustang 1 v2

2014-05-30T01:24:00.003+03:00

After few weeks that I tried to set my guitar amplifier fender mustang 1 v2 to produce "crystal clear" sound + two days of thoughts about selling the amp and buy a "better one", I finally found the way to get clear sound.

Turn off the amplifier
Press the "TAP" button.
Turn on the amplifier while the "TAP" button is pressed.
That's it!

No effects, no gain, no reverb, no cool effects. JUST CLEAR SOUND.

How to make a bootable Mavericks install drive (usb, disk on key)

2014-04-22T23:51:00.003+03:00

The text below is "copy paste" from liondiskmaker site. version 3 supports the Mavericks installer

Link: http://liondiskmaker.com/

DiskMaker X (formerly Lion DiskMaker) is an application built with AppleScript that you can use with Mac OS X 10.6, 10.7, OS X 10.8 and 10.9 to build a bootable drive from Mac OS X Lion, OS X Mountain Lion Installation or OS X Mavericks Installer program. As soon as you launch the application, it tries to find the OS X Install program with Spotlight. Then, it proposes to build a bootable install disk and make it look as nice as possible. It’s the easiest way to build an OS X Installer in a few clicks !

iMac fan working at full speed ( making noise ) after replacing HDD by SSD

2014-04-22T00:42:00.001+03:00

Problem: After replacing the hard disk on my iMac to SSD, the fan/s started to work at full speed and make noise.

Reason: Replacing the original hard disk breaks the system’s temperature monitoring and the fans will stat to work on full speed.

Solution for Mac OS X:
Install the free software "SSD Fan Control", Find the noisy fan and control it in ‘Manual’ or ‘SMART’ mode.
Don't forget to donate!!!

Link:
http://exirion.net/ssdfanctrl/

Solution for Windows 8 on BOOT CAMP partition:

Install the free software "Macs Fan Control", Find the noisy fan and control it in ‘Manual’ or ‘SMART’ mode.
Don't forget to donate!!!
Link:
http://www.crystalidea.com/macs-fan-control

input type range

2014-01-23T21:50:00.001+02:00

http://demo.agektmr.com/datalist/

http://dev.w3.org/html5/markup/input.range.html#input.range.attrs.list

Article - The 30 CSS Selectors you Must Memorize

2014-01-16T19:18:00.004+02:00

background-position-x and background-position-y aren't cross-browser compatible

2014-01-15T17:47:00.001+02:00

Wrong:
.myStyle{
background-image: url(images/someImage.png);
background-repeat:no-repeat;
background-position-x: 20px;
background-position-y: 30px;
}

Right:
.myStyle{
background-image: url(images/properties_underline.png);
background-repeat:no-repeat;
background-position:20px 30px;
}

CSS properties + Webkit CSS properties

2014-01-11T00:53:00.001+02:00

I found this site:

CSS properties: http://css-infos.net/

Webkit CSS properties: http://css-infos.net/properties/webkit

Screen capture from the site