| bg | This command is used to send a process to the background. |
Example: The process with id 1 is sent to the background by providing its id to bg.
Syntax: $ bg %1
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| fg | This command is used to run a stopped process in the background. |
Example: The process with id 1 is brought to the foreground with the help of this command.
Syntax: $ fg %1
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| top | This command is used to get the details of all active processes. | Syntax: $ top
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| ps | This command is used to give the status of running for a user. | Syntax: $ ps
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| ps PID | This command gives the status of a particular process. |
Example: Displays the status of the process with id 12230.
Syntax: $ ps 12230
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| pidof | This command is used to give the process ID of a particular process. | Syntax: $ pidof bash
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