View the last Centos startup time and running time

1. uptime Command [SQL] viewplaincopy [spark @ MasterLog_Data] $ uptime09: 18: 01up20: 17 1. uptime Command [SQL]View plaincopy

1. [Spark @ Master Log_Data] $ uptime
2. 09:18:01 up, 1 user, load average: 0.13, 0.12, 0.14

  2. View/proc/uptime file calculation system startup time [SQL]View plaincopy

1. [Spark @ Master Log_Data] $ cat/proc/uptime
2. 73064.44 276161.85

Output: 73064.44 276161.85 the first digit is the system running time of 73064.44 seconds. The system startup time can be calculated using the system tool date. Code: [SQL]View plaincopy

1. [Spark @ Master Log_Data] $ date-d "$ (awk-F. '{print $1}'/proc/uptime) second ago "+" % Y-% m-% d % H: % M: % S"
2. 13:00:59

3. view the running time of the/proc/uptime file computing system.  Code: [SQL]View plaincopy

1. [Spark @ Master Log_Data] $ cat/proc/uptime | awk-F. '{run_days = $1/86400; run_hour = ($ 1% 86400 3600)/1%; run_minute = ($3600 1%)/60; run_second = $60; printf ("The system has