The 'tee' command creates one for you automatically. You would use it to simultaneously look at output from a process and redirect it to a disk file (for example).
To create a Free OS like the UNIX Operating System, They wanted to create a system that was like UNIX without all of the intellectual property issues that UNIX had. (UNIX was proprietary software).
using touch command of UNIX. syntax touch <filename> will create dummy regular file.
The Unix/Linux tee command permits the forking of a data pipe in a shell script or at the command line. The teecommand does this by both writing it's standard input to a file and to it's standard output simultaneously. Most implementations of tee provide for both file overwrite/creation and file appends by command line switch options.
There is no the system file. There are many files necessary to create a working Unix system.
Use useradd command
yes they do
cat file name
In Windows and Unix-based and Unix-like systems, the command is mkdir (however in Windows a shortcut md can be used as well).
It can't be exactly the same name as root; directories in Unix have to be unique, and therefore you can't duplicate the name.
He worked on it throughout the 1970s with Dennis Ritchie.
For TAR archives, you use tar -cvf .
To create a free Unix-like kernel that other people could study and use.