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In a systemd service file, how do you correctly specify the executable command that should run when the service starts?

easy📝 Syntax Q3 of 15
Raspberry Pi - Automation and Scheduling
In a systemd service file, how do you correctly specify the executable command that should run when the service starts?
AStartExec=/usr/bin/myprogram
BExecStart=/usr/bin/myprogram
CRunCommand=/usr/bin/myprogram
DCommandStart=/usr/bin/myprogram
Step-by-Step Solution
Solution:
  1. Step 1: Identify the directive for the command

    The correct directive to specify the command in a systemd service file is ExecStart.
  2. Step 2: Verify syntax

    The syntax is ExecStart=/full/path/to/executable. Other options like StartExec, RunCommand, or CommandStart are invalid.
  3. Final Answer:

    ExecStart=/usr/bin/myprogram -> Option B
  4. Quick Check:

    Correct directive is ExecStart [OK]
Quick Trick: Use ExecStart to specify the command in systemd service files [OK]
Common Mistakes:
MISTAKES
  • Using incorrect directive names like StartExec or RunCommand
  • Omitting the full path to the executable
  • Placing the command outside the [Service] section

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