MeenachiSundaram

version: "3.9"

########################### NETWORKS
# You may customize the network subnet (192.168.90.0/24) below as you please.
# Docker Compose version 3.5 or higher required to define networks this way.

networks:
  default:
    driver: bridge
  t2_proxy:

MeenachiSundaram

#!/bin/bash

# Docker
curl -fsSL https://get.docker.com -o get-docker.sh
sh get-docker.sh

# Docker Compose
compose_release() {
  curl --silent "https://api.github.com/repos/docker/compose/releases/latest" |
  grep -Po '"tag_name": "\K.*?(?=")'

MeenachiSundaram

SCREEN Quick Reference

Getting in

Description	Command
start a new screen session with session name	screen -S
list running sessions/screens	screen -ls
attach to a running session	screen -x
attach to session name	screen -r

MeenachiSundaram

Combining multiple Files

Method 1

    head -n1 file1.txt > combined.txt
    for fname in *.txt
    do
        tail -n+3 $fname >> combined.txt
    done

Method 2

MeenachiSundaram

Installing Docker

Using startup script https://gist.github.com/MeenachiSundaram/6ffbbe38a072b94ad8d695d49d977ef7

Installing Docker Compose

sudo curl -L "https://github.com/docker/compose/releases/download/1.22.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose

MeenachiSundaram

#!/bin/bash

apt-get update

apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    software-properties-common

MeenachiSundaram

#!/bin/bash 

apt-get update
apt-get install -y git wget

# Install Docker
apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \

MeenachiSundaram

Functions and Commands

Function	Command
New Window	ctrl a+c
Set Window name	ctrl a+Shift A
Show All Window	ctrl a+w
Switch to windows	ctrl a+1|2|...n
Choose Window	ctrl a+"
Switch between prev Window	ctrl a+ctrl a

MeenachiSundaram

Checking for the file using pattern match

grep -rnw '/path/to/somewhere/' -e 'pattern'

• -r or -R is recursive,
• -n is line number, and
• -w stands for match the whole word.
• -l (lower-case L) can be added to just give the file name of matching files.

MeenachiSundaram

#!/bin/bash

for file in $( ls /etc/nginx/sites-available/ ) 
do
  #mkdir -p /home/grav/domains/$file
  unzip -q /home/grav/grav-admin.zip -d /tmp/
  mv /tmp/*grav* /home/grav/domains/$file
  ln -sF /etc/nginx/sites-available/$file /etc/nginx/sites-enabled/$file
done