jiabanl 发表于 2018-8-24 09:19:52

16/11/2017 shell学习笔记

#！/bin/bash　　
start=$(date +%s)
　　
commands;
　　
statements;
　　

　　
end=$(date +%s)
　　
difference=$(( end - start ))
　　
echo Time taken to execute commands is $difference seconds.


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