HPR1192: LiTS 024: time and /usr/bin/time




Hacker Public Radio show

Summary: Linux In The Shell aims to explore the use of many commands a user can run in the Bash Shell. Tutorials include a write up with examples, an audio component about the write up, and a video component to demonstrate the usage of the command. The website is http://www.linuxintheshell.org/ The time program is a handy tool to not only guage how much time in seconds it takes a program to run, but will also display how much user CPU time and system CPU time was used to execute the process. To understand these values you must grasp how the kernel handles the time reporting for the process. For example, the output of: time ls is real 0m0.007s user 0m0.000s sys 0m0.003s For the complete show including video and a complete write up go to http://www.linuxintheshell.org/2013/02/26/episode-024-time-and-usrbintime/