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time:tldr:07cc6
time: Display the current system time and prompt to enter a new time (leave empty to keep unchanged).
$ time
try on your machine
The command "time" is used to measure the amount of time it takes for a command or process to execute. When you execute a command along with the "time" command, it will display the amount of time it took to complete the command, as well as provide additional information such as CPU usage and memory consumption.
Here is an example of how to use the "time" command:
time ls
In this example, the "ls" command is executed, which lists the files and directories in the current directory. The "time" command will measure the time it takes for the "ls" command to complete and display the result, such as:
real 0m0.005s
user 0m0.001s
sys 0m0.003s
- The "real" time represents the actual elapsed time from the start to the end of the command.
- The "user" time represents the amount of CPU time spent executing in user-mode.
- The "sys" time represents the amount of CPU time spent executing in kernel-mode.
The "time" command is often used for performance analysis, troubleshooting, or simply to measure the efficiency of certain commands or programs.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.