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This command will show the sum total of memory used in gigabytes by a program that spawns multiple instances of itself. Replace chrome with whatever program's memory usage you are investigating. This command is rather useless on software that only spawns a single instance of itself.
Add up the amount of memory your processes are using and display the total. Replace marcanuy with your desired username.
Llist all the processes in the run queue.
This will find all the -Xmx[BIGINT] running on a system, add them up for you and give you the total.
Sets the exec bit on a file.
Piping ps into grep is mostly useless: ps has its own filter options like -u and -C
Pipes the header row of ps to STDERR, then greps for the command on the output of ps, removing the grep entry before that.
This shows all process (-e) and threads (-L) in full format (-F)
grep по ps aux
That is useful to discover the start time of process older than 1 day.
You can also run:
ls -ld /proc/PID
That's returning the creation date of the proc files from the process. Some users reported that this way might show you a wrong date since any other process like cron, for example, could change this date.
Inner "ps...grep..." command searches for a process matching the specified .
"lsof -p lists all file descriptors owned by . Includes open files, sockets, devices, etc...
Display all pid less the 300 processes info
How much memory is chrome sucking?
This version also attaches to new processes forked by the parent apache process. That way you can trace all current and *future* apache processes.
Did some research and found the previous command wrong, we don't kill a zombie but its parent. Just made some modifcation to khashmeshab's command.