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- create new task and optionally change project
newtask [-p project] [-v] [-c pid | [-Fl] [command...]]
The newtask command executes the user's default shell or a specified command, placing the executed command in a new task owned by the specified project. The user's default shell is the one specified in the passwd database, and is determined using getpwnam().
Alternatively, newtask can be used to cause an already running process to enter a newly created task. A project for the new task can also be specified in this form of the command. This might be desirable for processes that are mission critical and cannot be restarted in order to put them into a new project.
In the case that extended accounting is active, the newtask command can additionally cause the creation of a task accounting record marking the completion of the preceding system task.
The following options are supported:
Cause a running process to enter a newly created task. A project for the new task can also be specified using the -p option. The invoking user must either own the process or have super-user privileges.
If the project is being changed, the process owner must be a member of the specified project, or the invoking user must have super-user privileges. When the project is changed for a running process, its pool binding as well as resource controls are modified to match the configuration of the new project. Controls not explicitly specified in the project entry is preserved.
This option is incompatible with the -F and -l options.
Creates a finalized task, within which further newtask or settaskid(2) invocations would fail. Finalized tasks can be useful at some sites for simplifying the attribution of resource consumption.
Changes the environment to what would be expected if the user actually logged in again as a member of the new project.
Changes the project ID of the new task to that associated with the given project name. The invoking user must be a valid member of the requested project, or must have super-user privileges, for the command to succeed. If no project name is specified, the new task is started in the invoking user's current project.
Verbose: displays the system task id as the new system task is begun.
The following operands are supported:
The project to which resource usage by the created task should be charged. The requested project must be defined in the project databases defined in nsswitch.conf(4).
The command to be executed as the new task. If no command is given, the user's login shell is invoked. (If the login shell is not available, /bin/sh is invoked.)
Example 1 Creating a New Shell
The following example creates a new shell in the canada project, displaying the task id:
example$ id -p uid=565(gh) gid=10(staff) projid=10(default) example$ newtask -v -p canada 38 example$ id -p uid=565(gh) gid=10(staff) projid=82(canada)
Example 2 Running the date Command
The following example runs the date command in the russia project:
example$ newtask -p russia date Tue Aug 31 11:12:10 PDT 1999
Example 3 Changing the Project of an Existing Process
The following example changes the project of the existing process with a pid of 9999 to russia:
example$ newtask -c 9999 -p russia
The following exit values are returned:
A fatal error occurred during execution.
Invalid command line options were specified.
Local database containing valid project definitions for this machine.
Process information and control files.
See attributes(5) for a description of the following attributes: