xargs parallel note to self
Xargs is useful to run in parallel. Its parallel processing is very efficient. Read this post about its efficiency and this one about basic commands. Below, is my favorite way to runRead More…
All posts by kossboss
Python + Guitar + All Notes
I came across this medium article about python and guitar strings and plotting scales. It has an interesting Jupyter notebook to work with, allowing to plot scales for all of the chords.Read More…
Python remove duplicates similar to bash uniq + sort
# citing: https://www.reddit.com/r/Python/comments/jfx7wy/how_to_quickly_remove_duplicates_from_a_list/ # Let’s make some duplicates (one million numbers between 1 and 100) from random import randrange DUPLICATES = [ randrange(100) for _ in range(1_000_000) ] ### METHOD 1 ###Read More…
iostat service time (svctm) rule of thumb
iostat service time is a very useful metric when analyzing disk performance and finding bottlenecks service time is essentially the inverse of IOPs so if an operation takes 1ms to service, thenRead More…
Favorite Watch of 2019+2020
I am not a fan of bulky watches, I like them sleek and gorgeous. The winner goes to my friend’s company: https://durdenwatch.com/ The Durden watch is a sleek and sexy watch. IRead More…
Coronavirus Covid19 Dashboard
A Coronavirus COVID-19 dashboard for the world and each country created by me. There are y-axis-logarithmic plots and y-axis-normal plots. Additionally, there are plots for every state/province/territory for the US and CanadaRead More…
Suggested Robocopy Switches
Note: This article is not mine. It was written on http://www.rainingforks.com/blog/2015/suggested-robocopy-switches-explained.html. I am simply excerpting the whole article. This way if that site ever gets shutdown, at least there will be aRead More…
How to RDP over an SSH tunnel
You can use this trick to access your home PC from a remote PC (like your work PC). Instead of using Teamviewer or other similar software. You can setup up your ownRead More…
Bash convert seconds to human readable
function displaytime { local T=$1 local D=$((T/60/60/24)) local H=$((T/60/60%24)) local M=$((T/60%60)) local S=$((T%60)) (( $D > 0 )) && printf ‘%d days ‘ $D (( $H > 0 )) && printf ‘%dRead More…
Wrong Port Connected Check With ifconfig
We need to run ifconfig and look for the status line. Remember this about ifconfig output: * if “status: active“, the port is linked up and sending traffic (now you just needRead More…