Track the time a command takes in UNIX/LINUX?

LinuxUnixCommand LineTerminal

Linux Problem Overview

In UNIX/LINUX, is there an easy way to track the time a command takes?

Linux Solutions

Solution 1 - Linux

Yes, use time <command>, such as

time ls

Consult man time for more options. Link.

Solution 2 - Linux

Use

/usr/bin/time

instead that the time builtin in the bash: it is more configurable AFAIK.

e.g. /usr/bin/time --format=' \n---- \nelapsed time is %e'ls

Solution 3 - Linux

Here is how a sleep of one second looks like, timed with time:

$ time sleep 1

real	0m1.001s
user	0m0.000s
sys	0m0.000s

Solution 4 - Linux

The command time is built-in in the bash but it can also be installed on most distros by installing the package "time" (apt install time) and must be accessed by doing /usr/bin/time.

Using /usr/bin/time offers more convenient options like specifying a format:

time --format="Duration: %e seconds" sleep 3
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Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionOneChillDudeView Question on Stackoverflow
Solution 1 - LinuxsquiguyView Answer on Stackoverflow
Solution 2 - LinuxPaolinuxView Answer on Stackoverflow
Solution 3 - LinuxGuillaume ChevalierView Answer on Stackoverflow
Solution 4 - LinuxJarchiiiView Answer on Stackoverflow