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기술자료/Linux

echo 리디렉션/리다이렉션(redirection)에 sudo 혼합 사용 방법 tee

by 와이즈캣 2023. 11. 22.
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기존

Activation	: echo PCC.00 > /sys/class/gpio/export
Direction 	: echo out > /sys/class/gpio/PN.01/direction
Output High	: echo 1 > /sys/class/gpio/PCC.00/value
Output Low	: echo 0 > /sys/class/gpio/PCC.00/value
Deactivation	: echo PCC.00 > /sys/class/gpio/unexport

tee와 sudo 적용

Activation	: echo PCC.00 | sudo tee -a /sys/class/gpio/export
Direction 	: echo out | sudo tee -a /sys/class/gpio/PN.01/direction
Output High	: echo 1 | sudo tee -a /sys/class/gpio/PCC.00/value
Output Low	: echo 0 | sudo tee -a /sys/class/gpio/PCC.00/value
Deactivation	: echo PCC.00 | sudo tee -a /sys/class/gpio/unexport

 

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