salman-pathan

package main

import (
	"fmt"
	"sync"
	"time"
)

// Foo prints 'foo' for 'limit' number of times. The 'fooChan' halts the execution
// on a separate goroutine and waits for a initial signal from the main. Once it

salman-pathan

Multi-thread processing in Go

Threads

A thread is the smallest unit of processing that an OS can perform. The default size of a thread in a Linux/x86-32 machine is 2MB

Threads can be :

1. Concurrent - Two or more threads can start, run and complete in overlapping periods.
2. Parallel - The same task can be executed multiple times at once.

salman-pathan

Create desktop file/ shortcut for Application

1. Create a file in ~/.local/share/application with .desktop extension, i.e. myapp.desktop
2. Add the following content to that file

[Desktop Entry]
Name=Application Name
Comment=Description about application
Exec=<PATH TO APP>
Icon=<PATH TO APP's image>
Terminal=false // Whether the program runs in a terminal window. 

salman-pathan

Upload binary to gitlab

curl --request POST --header "PRIVATE-TOKEN: <token>" \
     --form "file=@<filename>" "https://gitlab.com/api/v4/projects/<username>%2F<project-name>/uploads"

salman-pathan

Extract audio from mp3 file

ffmpeg -i test.mp3 -ss 00:00:00 -to 00:00:30 -c copy -y temp.mp3

Convert mp3 file to wav

ffmpeg -i song.mp3 -acodec pcm_u8 -ar 22050 song.wav

salman-pathan

"  _____ _   __
" /  ___| | / /     Salman Khan
" \ `--.| |/ /      https://github.com/salman-pathan
"  `--. \    \ 
" /\__/ / |\  \
" \____/\_| \_/
"
" Configuration inspired by DT (Derek Taylor)
" A customized init.vim for neovim (https://neovim.io/)
" NVIM v0.6.1

salman-pathan

Get Container IP

docker inspect -f '{{range.NetworkSettings.Networks}}{{.IPAddress}}{{end}}'

salman-pathan

Keys

Create new Key

ssh-keygen -t rsa -b 4096 -C "your_email@example.com"

SSH Agent

Add Key to SSH Agent

eval "$(ssh-agent -s)" ssh-add <your-key>

List Keys in Agent

salman-pathan

Consul Configuration on EC2

Installing Consul

sudo yum install -y yum-utils

sudo yum-config-manager --add-repo https://rpm.releases.hashicorp.com/AmazonLinux/hashicorp.repo

salman-pathan

syntax on

set noerrorbells
set tabstop=4 softtabstop=4
set shiftwidth=4
set expandtab
set smartindent
set nu
set nowrap
set smartcase