The `high` command is a strong utility in Linux used to supply a real-time, dynamic view of a system’s efficiency. It affords a complete abstract of system assets and an in depth record of operating processes or threads managed by the Linux Kernel. Here is how one can successfully make the most of the `high` command to observe system exercise.
To provoke the `high` command, merely open a terminal window and kind:
high
This command will show a repeatedly updating display screen presenting numerous system metrics. By default, processes are sorted by CPU utilization in descending order, with essentially the most resource-intensive processes listed on the high.
Understanding `high` Output:
The `high` command supplies a wealth of data, together with:
PID: Course of ID, uniquely figuring out every activity.
PR: Course of precedence, with decrease numbers indicating greater precedence.
VIRT: Complete digital reminiscence utilized by the duty.
USER: Username of the duty proprietor.
%CPU: CPU utilization share by the duty.
TIME+: CPU time, displaying hundredths of a second for granularity.
SHR: Shared reminiscence measurement utilized by the duty.
NI: Good worth of the duty, affecting its precedence.
%MEM: Reminiscence utilization share of the duty.
RES: Bodily RAM consumed by the method, measured in kilobytes.
COMMAND: Command title initiating the method.
Examples of `high` Command Utilization:
Exit after Particular Repetition: Use `-n` choice to exit `high` command mechanically after an outlined variety of repetitions:
high -n 10
2. Show Particular Consumer Course of: Filter `high` output to indicate processes of a selected consumer utilizing the `-u` possibility:
high -u username
3. Spotlight Operating Processes: Press `z` inside the `high` command to show operating processes in coloration, aiding in straightforward identification.
4. Present Absolute Path of Processes: Press `c` inside the `high` command to show absolutely the path of operating processes.
5. Kill Operating Course of: Terminate a course of immediately from `high` command by urgent `okay` and getting into the PID of the method to be killed.
6. Kind by CPU Utilization: Kind processes by CPU utilization by urgent `Shift+P`.
7. View Command Syntax: Find out about completely different choices and syntax utilizing `-h` possibility:
high -h
8. Batch Mode: Make the most of `-b` choice to ship `high` output to a file or different applications.
high -b
9. Safe Mode: Run `high` in safe mode utilizing `-s` possibility.
high -s
10. Command Line Historical past: Provoke `high` with the final closed state utilizing `-c` possibility.
high -c
11. Set Delay Time: Modify the delay time between display screen updates utilizing `-d` possibility.
high -d seconds.tenths
Conclusion:
The `high` command is indispensable for Linux customers and system directors, offering real-time insights into system processes and useful resource utilization. Its dynamic interface, interactive instructions, and customizable choices make it a useful instrument for monitoring and troubleshooting system efficiency successfully. Whether or not sorting processes, terminating duties, or filtering by consumer, `high` affords a concise but complete view of system well being, enabling customers to take care of optimum efficiency effortlessly.
