#3770 Σ0ρλδ!!

With GNU find and GNU coreutils, and assuming your directories don't have newlines in their names: find . -mindepth 1 -maxdepth 1 -type d -exec du -ks {} + | awk '$1 <= 50' | cut -f 2- This will list directories with total contents smaller than 50K. If you're happy with the results and you want to delete them, add | xargs -d \\n rm -rf to the end of the command line. Command: find . -mindepth 1 -maxdepth 1 -type d -exec du -ks {} + | awk '$1 <= 50' | cut -f 2- | xargs -d \\n rm -rf Source:  https://unix.stackexchange.com/questions/214089/command-to-delete-directories-whose-contents-are-less-than-a-given-size

Simple command to list the size of sub-directories inside a directory using terminal : du -sh * | sort -h will get you a human-readable ascending list of the sizes of files and subdirectories in your current directory, du -sh will summarize the current directory size. Source:  https://askubuntu.com/questions/426809/how-to-list-the-size-of-a-directoy-and-subdirectories-and-files-inside-it-by-ter

After updating my Xubuntu to latest version 17.04, I've found out that my wifi was disabled. No wifi connections were being shown in the indicator plugin. On googling, I've found out that there is a bug in the latest release. So to fix the bug, I followed the steps mentioned in one of the solutions provided by the good folks at askubuntu.com. The steps given were as follow: Open terminal and run: sudo vim /etc/NetworkManager/NetworkManager.conf   At the bottom of the file, copy and paste the following: [device] wifi.scan-rand-mac-address=no     Then just save and close the file and run: sudo service network-manager restart Check if Wifi is enabled or not. If it is still not enabled, go to Softwares & Updates > Additional Drivers > Click on Do not use the device under Broadcom Wireless Drivers as shown in the image below.      5. Click on Apply Changes and then restart the system, the Wifi should be enabled now. Hope...

So, finally after a long time, I've found an original solution to my set of problems stated below: To backup and restore repositories.  To install manually installed packages on a new system or another system remotely. Most of the times, I've found straightforward answers to my queries from techgurus at askubuntu.com or any other sites. But this time, I've to be a bit more jugaadu by applying combinatorics to various solutions that I found to create a single solution for my problem  .  While implementing the solution, the question that was on back of my mind is beautifully depicted in the following xkcd comic: Will it work? If it doesn't, there is a likely chance of my system breaking down and lose of valuable time in fixing it. But thankfully, it did work.  Now, I'll share the process that I followed in implementing this solution. First part of the problem was achieved using the Y PPA Manager that I've mentioned in my blog post Fix dup...

Label Partitions: To label partitions on Linux based system from command line, follow the process given below: Replace /dev/sdxN with your partition (e.g. /dev/sdc1 ). for FAT32: sudo mlabel -i /dev/sdxN ::"my_label" or: sudo fatlabel /dev/sdxN my_label for NTFS: sudo ntfslabel /dev/sdxN my_label for exFAT: sudo exfatlabel /dev/sdxN my_label for ext2/3/4: sudo e2label /dev/sdxN my_label for BTRFS: sudo btrfs filesystem label /dev/sdxN my_label To label them through GUI based app, you can use GParted tool. Automount Partitions: To automount partitions on startup, follow the process given below: Fire up a terminal. [IMPORTANT] sudo cp /etc/fstab /etc/fstab.old - Create a backup of the fstab file just in case something unwanted happens. sudo blkid - Note the UUID of the partition you want to automount. sudo nano /etc/fstab - Copy the following line to the end of the file, save it and reboot afterwards to check if it worked. ...

To fix the above mentioned error, follow the list of steps that most easily provides the solution (also to backup PPA repository and other features too): You can remove duplicate entries in few easy steps with Y PPA Manager sudo add-apt-repository ppa:webupd8team/y-ppa-manager -y sudo apt-get update sudo apt-get install y-ppa-manager -y Open y-ppa-manager form Dash Enter You Admin Password. Double Click On Advanced. Scan & Remove Duplicate PPA's & Click Ok. It will take some time ( 1 or 2 Mints ) To Scan & Remove Duplicate PPA's. Source: https://askubuntu.com/questions/120621/how-to-fix-duplicate-sources-list-entry

The most up-to-date solution that I've found to fix the mentioned error is the blog title is given below: Installation: sudo apt install python3 - apt wget https :// raw . githubusercontent . com / davidfoerster / apt - remove - duplicate - source - entries / master / apt - remove - duplicate - source - entries . py chmod + x apt - remove - duplicate - source - entries . py Usage: sudo ./apt-remove-duplicate-source-entries.py Follow the instructions appearing on the screen Enjoy this xkcd comic about Packages (not Linux distros one): Source :   https://askubuntu.com/questions/760896/how-can-i-automatically-fix-w-target-packages-is-configured-multiple-times https://xkcd.com/576/

While working on my secret project. I came across several files on my external hard drive that had a lock icon on them. On researching, I found that it is because that my current user has only read permission and write permission is for root user only. So, I searched for a way to remove the root lock from the files. I came across several solutions. The best one is the following: chmod ugo+rw myfile.txt     Enjoy thix xkcd comic about authorization:   Source: https://askubuntu.com/questions/155874/is-it-possible-to-remove-lock-from-a-file-locked-through-root. https://xkcd.com/1200/

So, I've started working on my long awaited project by implementing it in small increments. First, I've decided to write a python script that counts total videos in a directory and its sub-directory. #!/usr/bin/env python2 import os import sys rootDir = sys.argv[1] totalVideoCounter = 0 videoExtension = [".3g2", ".3gp", ".asf", ".asx", ".avi", ".flv", \                         ".m2ts", ".mkv", ".mov", ".mp4", ".mpg", ".mpeg", \                         ".rm", ".swf", ".vob", ".wmv", "m4v"] for dirPath, subdirList, fileList in os.walk(rootDir,topdown=False):     dirName = dirPath.split(os.path.sep)[-1]     videoCounter = 0         for fname in fileList:       if fname.endswith(tuple(videoExtension)):             videoCounter +=1           ...

As, I was going through some great lectures available on YouTube, I thought of saving them all in a playlist and then downloading them all for offline viewing on my system. After googling for few minutes, I found this great command line program youtube-dl  to achieve this. It ticks all the right boxes - simple, open source, platform independent and python based. To install this on Ubuntu based systems, run the following command on your terminal: sudo apt-get install youtube-dl To download YouTube playlist, run the following command: youtube-dl -ctik   https://www.youtube.com/playlist?list=XXXXXX It has many other great features, be sure to explore them all. Though, I have found a problem that it downloads video and audio files separately and then combines them together in a single file leaving two extra files after each download which needs to be removed after the download is complete. I haven't looked into it to find the issue. If I find the solution, I will ...