Gokul Deepak S

PM2 Cheatsheet – Important Commands

October 12, 2020 by Gokul Deepak S Leave a Comment

PM2 Cheatsheet

Commands	Action
pm2 start app.js	Start a process
pm2 start app.js -name App1	Start a process with a name
pm2 start app.js -i 0	Start processes with Load Balancing

Commands	Action
pm2 list	Lists all processes
pm2 jlist
pm2 prettylist
pm2 monit
pm2 reset 0	Resets meta data – Started Time
pm2 updatePM2	Updates PM2 Memory

Commands	Action
pm2 log 1	Displays log for the particular process
pm2 flush	Empties all PM2 log files
pm2 reloadLogs	Reloads all PM2 Logs

Commands	Action
pm2 save	saves all processes
pm2 start all
pm2 stop all
pm2 restart all
pm2 reload all
pm2 delete all
pm2 start 0 / stop 0 / restart 0 / delete 0

MongoDB Terminal commands – Cheatsheet

September 14, 2020 by Gokul Deepak S 2 Comments

Import Mongodb from csv:

All data should be comma separated and each rows are line separated

mongoimport --db dbname --collection colectionname --type csv --file filename.csv --headerline

To Find the Range of dates

db.softwareInventory.find({ date: { $gte: ISODate("2020-10-16T00:00:00.000Z"), $lt: ISODate("2020-10-16T22:47:55.302Z") } })

Ubuntu 20.04 commands for Beginners

September 11, 2020 by Gokul Deepak S Leave a Comment

date	Displays the current date and time of the system
cal	Displays the current month’s calendar
uptime	shows the uptime of the system
whoami	current user’s name
users	logged in user name
id	current user’s id
who
w
man	reference manual of other commands
ls	Lists Directory
cat	View whole File at once
more	View File page by page
less	View File page by page (Loads faster than more)
head	Display first 10 lines of a file
tail	Display last 10 lines of a file
wc -l	Count number of lines in a file

All important PSQL Commands

September 11, 2020 by Gokul Deepak S Leave a Comment

CREATE DATABASE database_name;

GRANT ALL PRIVILEGES ON DATABASE database_name TO user_name;

ALTER DATABASE database_name
OWNER TO new_user;

ALTER DATABASE database_name
RENAME TO new_name;

begin;
rollback;
savepoint point_name;
rollback to point_name; (Then you can commit until the savepoint)
end transaction;
commit; (end transaction and commit both are same)

Git Command Cheat Sheet from basic to advance

August 25, 2020 by Gokul Deepak S Leave a Comment

Here Let me use this page as git command cheat sheet.

Git global setup

git config --global user.name "Administrator"
git config --global user.email "[email protected]"

Create a new repository

git clone http://192.168.2.151:8081/root/test1.git
cd test1
touch README.md
git add README.md
git commit -m "add README"
git push -u origin master

Push an existing folder

cd existing_folder
git init
git remote add origin http://192.168.2.151:8081/root/test1.git
git add .
git commit -m "Initial commit"
git push -u origin master

Push an existing Git repository

cd existing_repo
git remote rename origin old-origin
git remote add origin http://192.168.2.151:8081/root/test1.git
git push -u origin --all
git push -u origin --tags

Add Text Start or End in each line – Notepad++

August 23, 2020 by Gokul Deepak S Leave a Comment

Problem:

Add a text at the start of every line

Solution:

Press Ctrl+H keys
In search and replace box
search for ^ and in replace text box type the text that you want to display.

Problem:

Add a text at the end of every line

Solution:

Press Ctrl+H keys
In search and replace box
search for $ and in replace text box type the text that you want to display.