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• how to acceess udev rule parameter

  Computer/linux 2017. 8. 25. 22:36

  Sometime, one needs to access all attribute on a device in order to create the udev rule for this device. $ udevadm info --query=all -n /dev/EtherCAT0 --attribute-walk Udevadm info starts with the device specified by the devpath and then walks up the chain of parent devices. It prints for every device found, all possible attributes in the udev rules key format. A rule to match, can be composed b..

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• How to get only the mac address (Linux)

  Computer/linux 2017. 8. 25. 17:24

  Sometime, I would like to get only the mac address of the ethernet device. so here is the command line to do this. ip addr show dev enp5s0 | grep "link/ether" | awk '{print $2}'

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• Exact copy a huge directory into the different one in linux

  Computer/linux 2017. 3. 15. 06:34

  I have ifc1410-ioxos-161103 in /export/nfsroots/, and would like to copy the entire dir in the different name. $ mkdir ifc1410-ioxos-161103-rules-test $ cd ifc1410-ioxos-161103 $ sudo -E tar cf - . | (cd /export/nfsroots/ifc1410-ioxos-161103-rules-test/ && tar xBf -) Reference http://www.linuxdevcenter.com/pub/a/linux/lpt/18_16.html

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• Raspberry Pi Image copy in Linux

  Computer/linux 2017. 3. 10. 05:43

  As described in https://www.raspberrypi.org/documentation/installation/installing-images/linux.md, dd can be used for "image copying on a MicroSD". However, in the case where dd version is old, it would be good to use "pv" to check its status as follows: pv -tpre 2017-03-02-raspbian-jessie.img | dd bs=4M of=/dev/sdb

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• Bootable Linux USB from iso

  Computer/linux 2017. 1. 11. 23:32

  pv -tpre CentOS-7-x86_64-DVD-1611.iso | dd of=/dev/sdg conv=notrunc,noerror If pv doesn't exist in a system, please install it via a package manager

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• [git] when the location of a submodule is changed

  Computer/linux 2016. 12. 30. 01:52

  modify .gitmodule to change the new url in .gitmodules [submodule "epics-modules/mrfioc2"] url = https://github.com/epics-modules/mrfioc2run git submodule sync

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• 우물가의 여인

  Poem 2016. 12. 29. 20:05

  우물가의 여인 버리지 못하는 잊지 못하는 보배들, 열정과 시간으로 보상 받으리라고 잠식된 가치관, 허나 그 헛되고 헛된 보배들... 목마름 타는 목마름. 영원히 목마르지 않을 당신의 물로 잔을 채워 주소서. 2016.12.29 Lund

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• command line to set the default pdf application

  Computer/linux 2016. 8. 16. 17:26

  jhlee@kaffee:~$ xdg-mime default atril.desktop application/pdf jhlee@kaffee:~$ xdg-mime query default application/pdf atril.desktop

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