Package procps-ng

System and process monitoring utilities

The procps package contains a set of system utilities that provide
system information. Procps includes ps, free, skill, pkill, pgrep,
snice, tload, top, uptime, vmstat, w, watch and pwdx. The ps command
displays a snapshot of running processes. The top command provides
a repetitive update of the statuses of running processes. The free
command displays the amounts of free and used memory on your
system. The skill command sends a terminate command (or another
specified signal) to a specified set of processes. The snice
command is used to change the scheduling priority of specified
processes. The tload command prints a graph of the current system
load average to a specified tty. The uptime command displays the
current time, how long the system has been running, how many users
are logged on, and system load averages for the past one, five,
and fifteen minutes. The w command displays a list of the users
who are currently logged on and what they are running. The watch
program watches a running program. The vmstat command displays
virtual memory statistics about processes, memory, paging, block
I/O, traps, and CPU activity. The pwdx command reports the current
working directory of a process or processes.

General Commands
Command Description
free Display amount of free and used memory in the system
pgrep look up or signal processes based on name and other attributes
pidof find the process ID of a running program.
pmap report memory map of a process
ps report a snapshot of the current processes.
pwdx report current working directory of a process
skill send a signal or report process status
slabtop display kernel slab cache information in real time
tload graphic representation of system load average
top display Linux processes
uptime Tell how long the system has been running.
w Show who is logged on and what they are doing.
watch execute a program periodically, showing output fullscreen
File Formats
File Description
sysctl.conf sysctl preload/configuration file
System Administration
Command Description
sysctl configure kernel parameters at runtime
vmstat Report virtual memory statistics