Batch kill multiple processes under Linux

Ps-ef|grep php|grep-v grep|cut-c 9-15|xargs kill-9

Pipe symbol "|" Used to separate two commands, the output from the left command of the pipe character is entered as the command to the right of the pipe. Let's talk about the connection with the pipe symbol.

Several commands:
"Ps-ef" is a command to view all processes in Linux. The retrieved process is then entered as the next command "grep mcfcm_st".
The output from grep mcfcm_st is that all processes that contain the keyword "mcfcm_st" are common to the remote connection process in the Oracle database.
Grep-v grep removes the process that contains the keyword "grep" in the listed process.
"Cut-c 9-15" is the 9th character to the 15th character of the input line, which is exactly the process number PID.
The Xargs command in "Xargs kill-9" is used to take the output (PID) of the preceding command as a parameter to the "kill-9" command and execute the order.

"Kill-9" will forcibly kill the specified process, which successfully clears all the remote connection processes for Oracle. Other similar tasks, only need to modify the "grep php" in the keyword section is OK.

Batch kill multiple processes under Linux