1 cat /proc/cpuinfo 2 vcgencmd measure_temp 3 cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq 4 cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq 5 cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq 6 vcgencmd measure_clock arm 7 vcgencmd measure_volts core
To see which hardware codecs have been enabled, use “vcgencmd codec_enabled CODECNAME” whereCODECNAME is one of H264, MPG2, WVC1, MPG4, MJPG, or WMV9. For example:
1 vcgencmd codec_enabled H264
To see how the memory is split between the CPU and the GPU use:
vcgencmd get_mem arm && vcgencmd get_mem gpu
see how much free memory is available to the system use:
1 free -o -h
Finding Your Raspberry Pi’s System Information
原文：http://www.cnblogs.com/weixinforspurs/p/5584964.html