PS -eaf|grep defunct
Use the 'ps' command. This command lists all of the processes running on the system, when they started, who the owner is, etc.
There is no traditional 'execute' command in Unix.
There is no standard 'format' command in Unix.
answer is ls.. ls is command outside of the unix kernel.. To identify this if you do locate <command> or which<command> you can identify the source of the program.. if you do locate<keyword> or which<keyword>.. you can't identify the source of the program... :)~ss
There are many variations of the useradd command; most standard installations may not have this switch. Please identify which Unix system you are talking about.
In Unix, pipes are basically how information flows between processes. Unnamed pipes are created and destroyed within the processes life cycle. Named pipes exist until removed with an unlink() command and can be used with unrelated processes.
The 'CD' command is not standard for Unix. The 'cd' command, however, will change directories (folders). It is a means of navigating the Unix file system.
PS -e|cut -d " " -fname|wc -l
In Unix, use the 'man' command.
You really can't. There is nothing in a prompt that would give that information.
For Unix, any command is run as a sub-process. You don't need an actual command to create the subprocess. You can also force the process to run in the background by appending a '&' symbol at the end of the command.
The "who" command.