top command in Linux with Examples. top command is used to show the Linux processes. It provides a dynamic real-time view of the running system. Usually, this command shows the summary information of the system and the list of processes or threads which are currently managed by the Linux Kernel.
What is the use of top command in Unix?
The Unix top command is a very useful way to see what programs are currently running on the system and how heavily they are using system resources. (The command is named “top” because it shows the top users of the system.)
How do I run a top command in Linux?
Kill a Running Process with Top Command
Hit the k key while the top command is running. A prompt will ask you about the PID you want to kill. Enter the required process ID by viewing it from the list and then hit enter. The process and the corresponding application will close almost immediately.
What is option in top command?
The options are: -b : Starts top command in batch mode. Useful for sending top output to other programs or file. -d : specify the delay time between the screen updates. -n : Number of iterations, the top should produce before ending.
What is netstat command?
The netstat command generates displays that show network status and protocol statistics. You can display the status of TCP and UDP endpoints in table format, routing table information, and interface information. The most frequently used options for determining network status are: s , r , and i .
How do I find the top 10 processes in Linux?
How To Check Top 10 CPU Consuming Process In Linux Ubuntu
- -A Select all processes. Identical to -e.
- -e Select all processes. …
- -o User-defined format. …
- –pid pidlist process ID. …
- –ppid pidlist parent process ID. …
- –sort Specify sorting order.
- cmd simple name of executable.
- %cpu CPU utilization of the process in “##.
What does netstat command do in Linux?
The network statistics ( netstat ) command is a networking tool used for troubleshooting and configuration, that can also serve as a monitoring tool for connections over the network. Both incoming and outgoing connections, routing tables, port listening, and usage statistics are common uses for this command.
What is Chkconfig in Linux?
chkconfig command is used to list all available services and view or update their run level settings. In simple words it is used to list current startup information of services or any particular service, updating runlevel settings of service and adding or removing service from management.
What is Time+ top command?
TIME+ (CPU Time): Depicts the total CPU time the task has used since it started, having the granularity of hundredths of a second. COMMAND (Command Name): Displays the command line used to start a task or the name of the associated program.
Which command is used for?
In computing, which is a command for various operating systems used to identify the location of executables. The command is available in Unix and Unix-like systems, the AROS shell, for FreeDOS and for Microsoft Windows.
What does Linux top stand for?
“Top” displays system summary information and a list of all processes and threads currently being managed by the Linux kernel. … It is also an interactive program, meaning that the output can be customized and manipulated while it’s running.
How do I use Linux?
Linux Commands
- pwd — When you first open the terminal, you are in the home directory of your user. …
- ls — Use the “ls” command to know what files are in the directory you are in. …
- cd — Use the “cd” command to go to a directory. …
- mkdir & rmdir — Use the mkdir command when you need to create a folder or a directory.