Toolbox Aid

August 9th, 2024 1:44 PM Mr. Q Categories: Command

Command: htop

The htop command provides an interactive, ncurses-based graphical representation of system processes, similar to a task manager. It offers an enhanced view compared to top, with a more user-friendly interface and additional features for managing processes.

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Sample Commands and Outputs:

• Command: htop Sample Command:

  $ htop

Sample Output:

  [htop output starts]
  1  [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  15.5%]
  2  [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  16.7%]
  3  [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  14.4%]
  4  [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  13.8%]

  Mem[||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  83.5%]
  Swp[||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||   0.0%]

  PID USER      PRI  NI  VIRT   RES   SHR S CPU% MEM% TIME+  COMMAND
  1234 user      20   0 123M  50M  12M S  10.2  1.5 0:05.23 firefox
  5678 user      20   0 789M 120M  25M R  15.4  3.1 0:10.11 code
  9101 root      20   0 345M  67M  11M S  0.5   0.8 0:01.05 sshd
  1122 user      20   0 678M  88M  17M S  3.2   1.0 0:02.34 gnome-shell
  [htop output ends]

Description:

• CPU and Memory Usage Bars: Graphical bars at the top show overall CPU and memory usage.
• Process List: Displays detailed information about processes, including PID, user, priority, CPU and memory usage, and command.
• Interactive Controls: Use arrow keys to navigate, and function keys for various actions:
  • F1: Help
  • F2: Setup
  • F3: Search
  • F4: Filter
  • F5: Tree view
  • F6: Sort by column
  • F9: Send signal

Installation:
To install htop if it’s not already present on your system, you can use your package manager:

• Debian/Ubuntu: sudo apt-get install htop
• Red Hat/CentOS: sudo yum install htop or sudo dnf install htop
• Arch Linux: sudo pacman -S htop