gistfile1.txt

[~/desktop/test] git:master $ cat file
modified by newBranch
[~/desktop/test] git:master $ ls
file
[~/desktop/test] git:master $ git checkout newBranch
M	file
Switched to branch 'newBranch'
[~/desktop/test] git:newBranch $ ls
file
[~/desktop/test] git:newBranch $ echo "test" > anotherFile
[~/desktop/test] git:newBranch $ git add anotherFile
[~/desktop/test] git:newBranch $ git checkout master
A	anotherFile
M	file
Switched to branch 'master'
[~/desktop/test] git:master $ ls -la
total 16
drwxr-xr-x   5 ivanruizmonjo  staff  170 15 ago 17:45 .
drwx------+  7 ivanruizmonjo  staff  238 15 ago 17:25 ..
drwxr-xr-x  13 ivanruizmonjo  staff  442 15 ago 17:46 .git
-rw-r--r--   1 ivanruizmonjo  staff    5 15 ago 17:45 anotherFile
-rw-r--r--   1 ivanruizmonjo  staff   22 15 ago 17:29 file
[~/desktop/test] git:master $ cat anotherFile
test
[~/desktop/test] git:master $ git checkout -b "randomBranch"
A	anotherFile
M	file
Switched to a new branch 'randomBranch'
[~/desktop/test] git:randomBranch $ cat anotherFile
test
[~/desktop/test] git:randomBranch $