including their process identification numbers (PIDs). Both Linux and UNIX support theps commandto display information about all running process. The ps command gives a snapshot of the current processes. If you want a repetitive update of this status, use top, atop, and/or htop command ...
NOTE The ifconfig command, as well some of the others you’ll see later in this chapter (such as route and arp), has been technically supplanted with the newer ip command. The ip command can do more than the old commands, and it is preferable when writing scripts. However, most people...
sy - Time spent in kernel space ni - Time spent running niced user processes (User defined priority) id - Time spent in idle operations wa - Time spent on waiting on IO peripherals (eg. disk) hi - Time spent handling hardware interrupt routines. (Whenever a peripheral unit want attention...
ni - Time spent running niced user processes (User defined priority) id - Time spent in idle operations wa - Time spent on waiting on IO peripherals (eg. disk) hi - Time spent handling hardware interrupt routines. (Whenever a peripheral unit want attention form the CPU, it literally pulls...
3. lsof -i TCP:8080 : list all TCP connection at port 8080; lsof -i :port number can actually show processes on a specific port 4. lsof -c mysql: list all files opened by command, in this example, it lists all files opened by mysql ...
screen update, expressed as a percentage of total CPU time. In a true SMP environment, if 'Irix mode' is Off, top will operate in 'Solaris mode' where a task's cpu usage will be divided by the total number of CPUs. You toggle 'Irix/Solaris' modes with the 'I' interactive command....
Ctrl+L: Clear the screen. This is similar to running the “clear” command. Ctrl+S: Stop all output to the screen. This is particularly useful when running commands with a lot of long, verbose output, but you don’t want to stop the command itself with Ctrl+C. ...
60 most commonly used Linux commands: 1. ls command · 2. pwd command · 3. cd command · 4. mkdir command · 5. rmdir command · 6. rm command + more.
nohup COMMAND > stdout.log 2> stderr.log& 上面这种，将会把COMMAND命令的标准输出输出到 stdout....
Use your preferred package manager to install Htop or see the official homepage linked at the bottom of this article for download options. Option 3 The pstree command is similar to ps in that it can be used to show all of the processes on the system along with their PIDs. However, it ...