You don't. The 'tar' command has nothing to do with the 'vi' editor; it creates an archive files and the vi editor modifies the content of a file.
tar is one of the basic commands in Unix. tar command in unix is used for achriving purpose, you can create archive, update or extract from archieve using tar command in unix.you can also create compressed archieve by combining bzip2 and gzip along with unix tar command
There is no traditional 'execute' command in Unix.
In Unix, use the 'man' command.
For TAR archives, you use tar -cvf .
Within the 'vi' editor, use the '!ps' command with the correct options, depending on the Unix version or variant.
Use the 'touch' command. You cannot create a zero byte file with 'vi'.
Use the command 'passwd'
cat /proc/version The above answer will only work on certain systems. For most Unix systems, use the 'uname' command to get the Unix version. AIX uses the oslevel command.
I don't know about a SEQ command, but the 'seq' command in Unix will print a sequence of numbers from first to last, with a given increment. Use the 'man seq' command to find out how to use it.
Use useradd command
'vi' is the standard text editor for Unix. You use it to edit content of a text file.
Use the 'mkdir' command