touch test1.txt

~/Desktop/$ ls
~/Desktop/$

$ touch ~/Desktop/a/b/c/d/e/f/g/h/1.txt

-p, --parents
          no error if existing, make parent directories as needed

mkdir -p ~/Desktop/a/b/c/d/e/f/g/h/ && touch ~/Desktop/a/b/c/d/e/f/g/h/1.txt

touch2() { mkdir -p "$(dirname "$1")" && touch "$1" ; }

touch2 ~/Desktop/a/b/c/d/e/f/g/h/1.txt

#!/bin/bash
mkdir -p "$(dirname "$1")" &&
    touch "$1"

touch2 ~/Desktop/a/b/c/d/e/f/g/h/1.txt

bash-4.3$ install -D /dev/null mydir/one/two

bash-4.3$ tree mydir
mydir
└── one
    └── two

1 directory, 1 file
bash-4.3$

bash-4.3$ for i in mydir/{'subdir one'/{file1,file2},'subdir 2'/{file3,file4}} ; do
> install -D /dev/null "$i"
> done
bash-4.3$ tree mydir
mydir
├── one
│   └── two
├── subdir 2
│   ├── file3
│   └── file4
└── subdir one
    ├── file1
    └── file2

bash-4.3$ arr=( mydir/{'subdir one'/{file1,file2},'subdir 2'/{file3,file4}} )
bash-4.3$ for i in "${arr[@]}"; do  install -D /dev/null "$i"; done
bash-4.3$ tree mydir
mydir
├── one
│   └── two
├── subdir 2
│   ├── file3
│   └── file4
└── subdir one
    ├── file1
    └── file2