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41 lines
1.1 KiB
Org Mode
41 lines
1.1 KiB
Org Mode
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#+title: Anki: Linux
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#+date: "2021-05-01 20:20:25 +08:00"
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#+date_modified: "2021-05-04 01:02:26 +08:00"
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#+language: en
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#+property: anki_deck Linux
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* Finding devices
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:PROPERTIES:
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:ANKI_NOTE_TYPE: Styled cards
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:ANKI_NOTE_ID: 1619878728534
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:END:
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** Front
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How to list devices information?
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(I mean all sorts of devices.)
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** Back
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- ~lspci~ is the most acceptable answer since it comprehensive lists all of the devices.
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- ~lsusb~ list USB-connected devices.
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- ~lsblk~ list the block devices which usually includes storage drives and such.
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* ~$PATH~ environment
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:PROPERTIES:
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:ANKI_NOTE_TYPE: Styled cards
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:ANKI_NOTE_ID: 1619878774321
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:END:
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** Front
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How does a shell find the binaries?
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** Back
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Most shell searches through the ~$PATH~ variable, a colon-delimited list of paths containing the binaries.
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* Testing systemd timestamps
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:PROPERTIES:
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:ANKI_NOTE_TYPE: Styled cards
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:ANKI_NOTE_ID: 1619878774617
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:END:
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** Front
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How to test out systemd timestamps?
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** Back
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~systemd-analyze {calendar,timestamp,timespan}~
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To know how the format (i.e., calendar, timestamp, and timespan) looks like, you can refer to ~man systemd.time.5~.
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