git auto-complete for *branches* at the command line?

 ok, so I needed the git autocompletion script.

I got that from this url:

curl https://raw.githubusercontent.com/git/git/master/contrib/completion/git-completion.bash -o ~/.git-completion.bash

No need to worry about what directory you're in when you run this as your home directory(~) is used with the target.

Then I added to my ~/.bash_profile file the following 'execute if it exists' code:

if [ -f ~/.git-completion.bash ]; then
  . ~/.git-completion.bash
fi

Update: I'm making these bits of code more concise to shrink down my .bashrc file, in this case I now use:

test -f ~/.git-completion.bash && . $_

Note: $_ means the last argument to the previous command. so . $_ means run it - "it" being .git-completion.bash in this case

This still works on both Ubuntu and OSX and on machines without the script .git-completion.bash script.

Now git Tab (actually it's git TabTab ) works like a charm!

p.s.: If this doesn't work off the bat, you may need to run chmod u+x ~/.git-completion.bash to grant yourself the necessary permission:

• chmod is the command that modifies file permissions
• u means the user that owns the file, by default its creator, i.e. you
• + means set/activate/add a permission
• x means execute permission, i.e. the ability to run the script

from: https://apple.stackexchange.com/questions/55875/git-auto-complete-for-branches-at-the-command-line

Execute bash shell in Makefile

 status:

    eval $$(docker-machine env dev); docker-compose ps

Trying to embed newline when concat two string variables in Bash

 

1. Inserting \n

    p="${var1}\n${var2}"
    echo -e "${p}"
   

2. Inserting a new line in the source code

    p="${var1}
    ${var2}"
    echo "${p}"
   

3. Using $'\n' (only Bash and Z shell)

    p="${var1}"$'\n'"${var2}"
    echo "${p}"

from: https://stackoverflow.com/questions/9139401/trying-to-embed-newline-in-a-variable-in-bash