Add all files to a commit except a single file?

Question

I have a bunch of files in a changeset, but I want to specifically ignore a single modified file. Looks like this after git status:

# modified:   main/dontcheckmein.txt

# deleted:    main/plzcheckmein.c

# deleted:    main/plzcheckmein2.c

Is there a way I can do git add but just ignore the one text file I don't want to touch? Something like:

git add -u -except main/dontcheckmein.txt

Answer 1

You can do git add and also you can ignore the file by using the following commands 

git add -u

git reset -- main/dontcheckmein.txt

Here main/dontchekmein.txt is the file that you have mentioned in the question.

Refer: https://git-scm.com/docs/git-reset#Documentation/git-reset.txt-Resetasinglefileintheindex