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Linux Tips

How to Check Memory (RAM) Information

Question! How to Check Memory (RAM) Information such as size, type and number.

Answer! Input the following command into a terminal or console.

sudo dmidecode --type 17

Note! You might need to install "dmidecode" to be able to execute the above command.

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How to Fix Spotify Crashes

Question! How to fix Spotify client crashes on Debian based GNU/Linux distributions, possibly even other distributions.

Answer! Launch Spotify client with the following argument.

spotify --no-zygote

Note! This is for terminal, you can however edit your desktop environment's menu entry for Spotify to reflect the mentioned command. Have a good one!

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How to check your HDD/SSD drive's health

Question! How to check your HDD/SSD drive's health under linux.

Answer! First, install the SMART drive monitoring tool from a console or terminal. Just type the following command under any Ubuntu/Debian powered GNU/Linux distro:

sudo apt install smartmontools

Then run the following command from a terminal or console:

sudo smartctl -H /dev/sda

Note! Replace "sda" in the "/dev/sda" path by your desired target drive.

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How to Make a Bootable USB From Linux ISO File

Question! How do I make a bootable usb pendrive out of a linux distro ISO image?

Answer!  Open up a console then type in the following command:

sudo dd bs=4M if=/path/to/ISO/File.iso of=/dev/sdX status=progress oflag=sync

Then push the enter key.

Note! Repalce the "X" in "sdX" by your pendrive corresponding letter.

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Batch Image Resize

Question! How to resize multiple images at once.

Answer!  You will first need a tool called ImageMagick, so bring up the console and type in the following command to install it :

apt-get install imagemagick

 Then type the following command in the console :

for i in $( ls *.jpg); do convert -resize 50% $i re_$i; done

Note! Replace "jpg" by the extension your images have (it's case sensitive), and "50" by the percentile you want your images to be resized to. The command will resize all images with the mentioned extension in the current directory it is run from.

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Default monitor on dual monitor setup

Question! How to set the default monitor for applications in a dual monitor configuration.

Answer!  Open up a console then type in the following command:

xrandr -q

Identify your primary monitor among the list you get, then type in the following command :

xrandr --output DVI-0 --primary

Note! Replace DVI-0 by your identified monitor's id.

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Installing *.msi files through WINE

Question! How to install .msi files on WINE.

Answer! Type the following command in the console :

wine msiexec /i xyz.msi

Note! Replace xyz by your file name.

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Mounting ISO files

Question! How to mount an ISO image file so that you can read its content.

Answer! Type the following command in the console :

mount -o loop <ISO file> <target directory>

Note! Replace <ISO file> and <target directory> by the corresponding names.

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Run a "jar" java file

Question! How to run a java file under terminal.

Answer!  Open up a console or terminal then type the following command :

java -jar filenamehere.jar

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Run a JNLP file (Java)

Question! How to run a jnlp file under terminal.

Answer!  Open up a console or terminal then type the following command :

sudo apt-get install icedtea-netx

Then type the following command always in the console while in the target file's directory :

javaws filename.jlnp

Note! Replace "filename" by the name of the file you want to run.

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