cp
Copy file content from beep.txt to message.txt, create message.txt if not exists.
cp beep.txt message.txt
Copy file to a different directory
cp beep.txt ../
# the same as
cp beep.txt ../beep.txt
cp (multiple files)
You can copy multi files at once to a new places:
mkdir cool
cp beep.txt boop.txt cool
cp command checks that if the last arguement is a directoy, then it will copy multi files into that directory.
cp -r
If you have a directory full of files and directoires you want to copy to a new place, you can use cp -r to recursively copy a directory and all its subdirectories to a new location:
# copy all content source directoy to target directory
cp -r source target
Likewise, there is a -R for the ls command that recursively lists subdirectories:
ls -R newsyz
newxyz:
123 a.txt b.txt
newxyz/123:
a.txt