mkdir ~/.firejail_test/a/b/c
mkfile ~/.firejail_test/a/b/c/d.txt
mkdir /tmp/.firejail_test/a/b/c
mkfile /tmp/.firejail_test/a/b/c/d.txt
mkdir ${RUNUSER}/.firejail_test/a/b/c
mkfile ${RUNUSER}/.firejail_test/a/b/c/d.txt