33 lines
647 B
Plaintext
33 lines
647 B
Plaintext
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#!/bin/bash
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# Prints out the CPU load percentage
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PREFIX=' '
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get_load()
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{
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# Get the first line with aggregate of all CPUs
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cpu_last=($(head -n1 /proc/stat))
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cpu_last_sum="${cpu_last[@]:1}"
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cpu_last_sum=$((${cpu_last_sum// /+}))
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sleep 0.05
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cpu_now=($(head -n1 /proc/stat))
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cpu_sum="${cpu_now[@]:1}"
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cpu_sum=$((${cpu_sum// /+}))
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cpu_delta=$((cpu_sum - cpu_last_sum))
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cpu_idle=$((cpu_now[4]- cpu_last[4]))
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cpu_used=$((cpu_delta - cpu_idle))
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cpu_usage=$((100 * cpu_used / cpu_delta))
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# Keep this as last for our next read
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cpu_last=("${cpu_now[@]}")
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cpu_last_sum=$cpu_sum
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echo "$PREFIX $cpu_usage%"
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}
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get_load
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