Git commnad

git init: (Initialize the local directory as a Git repository.)
git add: (Add the files in your new local repository. and staging)
git reset HEAD file_name: (for unstage)
git commit -m "First commit" (commit the code)
git remote add origin remote_repository_url (Sets the new remote)
git pull origin development : (pull from remote)
git push origin master (push the code)
git config --list (show the git config )
git config --system --unset credential.helper
git config --global --unset credential.helper
git config --global credential.helper manage (chage the git config: u can use any one maybe)
git log --oneline -5
git log --oneline -5 origin/development
git branch
git checkout branch_name
git cherry-pick sha1
git commit --amend
git reset HEAD~ ( git reset last commit)
git marge <branch_name> you have to location destination branch(like master)

git cherry-pick <sha1> cherry pick is used to replace in the top of current branch.
git checkout <prev_sha1> <filename> file change to sha1 commited file
git push origin -u <branch_name> it will create a branch in remote. -u = upstream
git stash "current changes keep in the drap mode"
git stash pop
git stash list
git checkout . "that means current change will be removed"
git reset c602b9fc --hard " it will remove all the commit after c602b9fc and head will be c602b9fc"
merge is used to merge two branches. follow the two steps

How do I use 'git reset --hard HEAD' to revert to a previous commit

git reset c602b9fc --hard

git push origin master --force

https://help.github.com/en/articles/adding-an-existing-project-to-github-using-the-command-line

sudo tail -n 20 /var/log/nginx/error.log (to see the log of nginx server)
chmod -R <permissionsettings> <dirname> (change the folder permision and its subfolder and files)

chmod 400 SPWStaging-ASDAccount.pem (first time)
ssh -i "SPWStaging-ASDAccount.pem" ec2-user@ec2-18-212-2-219.compute-1.amazonaws.com
sudo su (ec2-user is used as a super user)

wget <url> to download the from internet
unzip to extrac the file in linux
sudo useradd <user_name> adding user in linux
sudo passwd <user_name> set the password
sudo userdel <user_name> deleting the user
sudo groupadd <groupd_name> add the group in linux command
sudo touch <file_name> create the file
sudo vi <file_name> to open the file in file text check 5 point
sudo cp <file_name> <folder_name> copy the file to specific folder
sudo mv <file_name> <folder_name> to move the file
sudo rm <file_name> to remove the file
sudo mkdir <directory_name> to create a directory in linux
sudo rmdir <directory_name> to remove the directory in Linux
sudo grep -i <string_name> <file_name> just like as ctrl+f features in command line. Flag: -n, -v,-c, -i
sudo sort <file_name> sort the file string
ls -l to show the file list with permission
chown <user_name> <file_name> to change ownership of file like "Tushar(user) to root user"
chmod <permission_number (777)> <file_name> (pronounce: ch-mod/ch-own)

id - show the user id
tar -cvf <file_name> <source_folder_name> to zip as the file
tar -xvf <file_name> unzip tar the file
cut -c1-2 <file_name> to cut the string from the file. here c means column from 1 to 2
sed 's/<replaced_string>/<replace_by_string>' <file_name>

free -k/-m is used to check memory space in the system
ssh-keygen -t rsa to create public private key to get access. from the next time just type enter

ifconfig / ip a to check the ip address
env for the environment variale
sudo app-get install pinta to install the software in ubuntu
scp -i ec2-access.pem /home/cefalo/Tushar/a2n/boilerplate/sveltekit/node_modules.zip ubuntu@ec2-63-33-70-8.eu-west-1.compute.amazonaws.com:/opt/boilerplate/boilerplate-sveltekit // upload local zip to aws ec2

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