Which one of the following command is used for killing the last background job?(a) kill $(b) kill $$(c) kill $!(d) kill !I got this question in examination.My question is from Process Handling Commands in section The Process of Unix

Which one of the following command is used for killing the last backgr

1.	Which one of the following command is used for killing the last background job?(a) kill $(b) kill $$(c) kill $!(d) kill !I got this question in examination.My question is from Process Handling Commands in section The Process of Unix
Answer» The correct choice is (c) kill $! Explanation: For most SHELLS, the system variable $! Stores the PID of the last BACKGROUND job. So we can kill any PROCESS by USING kill COMMAND. The PID of the job can be seen when & is affixed to a command. For example,

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Which one of the following command is used for killing the last background job?(a) kill $(b) kill $$(c) kill $!(d) kill !I got this question in examination.My question is from Process Handling Commands in section The Process of Unix

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