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How to get the PID of a script in Bash?
This uses ps to get the pid and args for all bash processes, then uses awk to print the pid (field 1) of the matching process. BTW, ps -o pid,args -C bash gives you the pid and the name of the script file you asked for – the script’s name is in the args of the bash command.
How to find a process name using PID number in Linux?
Find Linux Process PID. Coming back to our point of focus, assuming you already know the PID of a process, you can print its name using the command form below: $ ps -p PID -o format. Where: -p specifies the PID. -o format enables a user-defined format.
How to find all files in Linux Bash?
2.Use find $DIR -type fto find all files instead of find $DIR -iname ‘*’ 3.Avoid piping by using the -execcommand line option of find. 4.Do not single quote the command line arguments to your script, this was the main problem with the version you had.
Where does the kernel find the PID of a process?
The kernel identifies each process using a process ID (PID), a every instance of process must have a unique PID from other processes which is assigned when the process is invoked, to avoid any execution errors. The /proc file system stores information about currently running processes on your system, it contains directories for each process.
How to get the process ID of a shell script?
As a child process of the main shell, a subshell executes a list of commands in a shell script as a batch (so-called “batch processing”). In some cases, you may want to know the process ID (PID) of the subshell where your shell script is running. This PID information can be used under different circumstances.
How to get PID back from kill Stack Overflow?
The script it is trying to kill starts many other scripts so I am hoping that killing start.sh will kill all child processes. you create a subshell with the word start.sh in it. grep will then pick up on its own process and the start.sh one so you will get two PIDs back.
How to find the running script process ( es )?
to find the running_script process (es). However checking the PID against the ps command output show that the cmd as: “bin/bash” for the running_script process. running_script runs as a detached process ( & operator) which starts script_one. I print the PID-s at the start to compare with ps command’s output.