CODEWITHSUNDEEP
linuxperl
user2840647
user2840647

Reputation: 1314

Perl emulating linux time command

I am writing a perl script, and I need to achieve the same output as the linux "time" command, but without actually using the "time" command. Meaning I need to get the "real", "usr", "sys" times from a specific start time up to another point in time.

I have looked at the Time::HiRes library, but I am new to perl and am not sure how to use it properly.

How can I achieve the same output as the "time" command using Time::HiRes?

Upvotes: 0

Views: 87

Answers (1)

user149341
user149341

Reputation:

You can't. The breakdown of user and system time cannot be calculated from the elapsed wall time, which is the only information that Time::HiRes will give you.

You will need to use a module like BSD::Resource (specifically, the getrusage() function) to get this information.

Upvotes: 3

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