appym

I have been meaning to note down my *nix checklist of commands (For MacOS) which are very handy for basic operations on data. I will modify this post as and when I remember or come across something that fits here. These *nix commands are specifically tested for Mac OS. Uniques
uniq - This is the unix unique function which can be primarily used to remove duplicates from a file amongst other things. The file has to be pre sorted for uniq to work Consider file test which contains the following

$ cat test
aa
bb
bb
cc

appym

//
public class Node
{
public char label;
	public boolean visited=false;
	public Node(char l)
	{
		this.label=l;
	}
}

appym

String replace global in VI

:%s/search_string/replacement_string/g

delete All lines in a file

dG

delete first 30 lines in a file

appym

Add untracked changes to git

git add <full path of changed code>

Add all files in current folder to git

git add .