SathishKumar sathish-se

GraphQL introspection query via curl

cat introspection_query.json

{ 
  "query": "query IntrospectionQuery {
      __schema {
        queryType { name }
        mutationType { name }

Git commands Manually

1.General commands

Error: Cannot pull with rebase: You have unstaged changes

Do git status, this will show you what files have changed. Since you stated that you

don't want to keep the changes you can do git checkout -- <file name> or git reset

1. git checkout master

git checkout allows you to move between branches and potentially restore tree files.

The command git checkout master switches you to the master branch, which is always the best place to start before making changes to your repo.

2. git pull origin master

Get the latest updates on the master branch,

This is typically done to merge upstream changes. A git pull is actually a combination of git fetch, which grabs all the latest information, and git merge, which merges the two histories together.

Essentially, git pull origin master allows you to do two commands at once. It’s a great time-saver!

Always run git pull origin master before starting work on a repository. After all, you want to be sure your repository is up to date with the remote repo where you collaborate.

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

	GIT COMMANDS
	=============================================================================

	git status: Shows current status of git files.

	git log: Shows list of commits to git branch.

	git commit -m "Comment about changes on this version": Commits changes to branch you're currently on

	git branch: Lists all a Git project’s branches.

	# display file with line numbers
	cat file -n

	# display gzipped file with line numbers
	zcat file \| cat -n

	# display file from the i. line to j. line (that is j minus i there)
	cat file \| head -n j \| tail -n j-i

	# remove first line of the file (efficient)