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mdm-run - Online in the Cloud

Run mdm-run in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command mdm-run that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



mdm-run - run a command in parallel with mdm-master


mdm-run command
mdm-sync command


mdm-run annotates command as a candidate for parallel execution. If an mdm-master process
is present (i.e., the environment variable MDM_CMD_SOCK is defined), mdm-run submits
command to the mdm-master, and it exits when the master issues the command to an mdm-slave
process (which may be connected to another terminal) for execution. mdm-sync runs command
in place, but it coordinates with mdm-master to ensure that executing command does not
interfere with commands that are currently executing in parallel.

If there is no mdm-master process present (i.e., the environment variable MDM_CMD_SOCK is
not defined), both mdm-run and mdm-sync simply run command as if you entered command all
by itself.

These programs are a part of the Middleman System (mdm).


Neither mdm-run nor mdm-sync accepts any options.


If there is no mdm-master process present, the exit status of mdm-run is the exit status
of command. If an mdm-master process is present, the exit status is 0 if and only if
command is successfully issued to an mdm-slave process for execution.

The exit status of mdm-sync is always the exit status of command.


The mdm system uses the following environment variable for internal communication, and
thus you should not try to set them yourself.

mdm-run uses this environment variable to decide whether a mdm-master process is


See mdm.screen(1) for an example use of mdm-run.

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