How to get process ID of background process?

How to get process ID of background process?

linux shell background-process pid

linux

What is a .pid file and what does it contain?

linux unix pid

linux

What is the best way to ensure only one instance of a Bash script is running? [duplicate]

linux bash pid flock lockfile

linux

Must my pidfile be located in /var/run?

linux ubuntu unix pid

linux

Linux PID recycling [closed]

linux pid recycle

linux

Maximum PID in Linux

c linux pid

linux

Difference between PID and TID

linux pid

linux

Check if process exists given its pid

c linux pid

linux

How to get PID by process name?

python linux python-2.7 pid

linux

How do I increase the /proc/pid/cmdline 4096 byte limit?

linux process classpath pid limits

linux

Determine programmatically if a program is running

c linux process pid

linux

Process name from its pid in linux

c linux process system pid

linux

How to get PID from forked child process in shell script

linux shell pid

linux

How to detect the launching of programs on Linux?

c linux pid

linux

Meaning of PID, PPID and TGID [closed]

linux process linux-kernel pid threadgroup

linux