ps Linux Commands
What is Linux ps Command?
Explanation
ps COMMAND:ps command is used to report the process status. ps is the short name for Process Status.SYNTAX :
ps [options]OPTIONS:
-a
List information about all processes most frequently requested: all those except process group leaders and processes not associated with a terminal..
-A or e
List information for all processes.
-d
List information about all processes except session leaders.
-e
List information about every process now running.
-f
Generates a full listing.
-j
Print session ID and process group ID.
-l
Generate a long listing.
EXAMPLE:
-
ps
Output:
PID TTY
TIME CMD
2540 pts/1
00:00:00 bash
2621 pts/1
00:00:00 ps
In the above example, typing ps alone would list the current running processes.
-
ps -f
Output:
UID
PID PPID C STIME TTY
TIME CMD
nirmala
2540 2536 0 15:31 pts/1
00:00:00 bash
nirmala
2639 2540 0 15:51 pts/1
00:00:00 ps -f
Displays full information about currently running processes.
ps [options]
OPTIONS:
-a
List information about all processes most frequently requested: all those except process group leaders and processes not associated with a terminal..
-A or e
List information for all processes.
-d
List information about all processes except session leaders.
-e
List information about every process now running.
-f
Generates a full listing.
-j
Print session ID and process group ID.
-l
Generate a long listing.
EXAMPLE:
-
ps
Output:
PID TTY
TIME CMD
2540 pts/1
00:00:00 bash
2621 pts/1
00:00:00 ps
In the above example, typing ps alone would list the current running processes.
-
ps -f
Output:
UID
PID PPID C STIME TTY
TIME CMD
nirmala
2540 2536 0 15:31 pts/1
00:00:00 bash
nirmala
2639 2540 0 15:51 pts/1
00:00:00 ps -f
Displays full information about currently running processes.
| -a | List information about all processes most frequently requested: all those except process group leaders and processes not associated with a terminal.. |
| -A or e | List information for all processes. |
| -d | List information about all processes except session leaders. |
| -e | List information about every process now running. |
| -f | Generates a full listing. |
| -j | Print session ID and process group ID. |
| -l | Generate a long listing. |
-
psOutput:PID TTY
TIME CMD 2540 pts/1
00:00:00 bash 2621 pts/1
00:00:00 ps
In the above example, typing ps alone would list the current running processes. -
ps -fOutput:UID
PID PPID C STIME TTY
TIME CMD nirmala
2540 2536 0 15:31 pts/1
00:00:00 bash nirmala
2639 2540 0 15:51 pts/1
00:00:00 ps -f
Displays full information about currently running processes.
