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notes:c4eng

C4ENG CLASS NOTES PAGE

Unix/Linux:

  • cd - change directory
    • cd tmp
  • ~ - home directory
    • cd ~
  • / - root directory
    • cd /
  • sudo - super user
    • sudo shutdown -h now
  • ssh - secure shell to a remote machine
    • ssh remoteMachine
    • ssh remoteMachine@ipaddress
  • mkdir - makes a directory of your choice in current directory
    • mkdir directoryName
  • rm - deletes argument file
    • rm fileName
  • rmdir - deletes directory in argument with no files inside it
    • rmdir directory name
  • touch - makes a file in the current directory with the name of your choice
    • touch fileName
  • ls - shows files and directories within current directory
  • ls -l -shows files and directories within directory with shielding info
  • nano - a text editor
    • nano fileName
  • scp - secure copy to or from a remote machine via local host or remote host
    • scp fileName user@machine:

Internet Relay Chat

To reconnect to the IRC type the following:

  screen
  irssi
  /connect irc
  /join csci
  • screen -r - move back in to a created screen (our chat)
  • cntrl + a then d - moves back to original terminal outside of screen

Mercurial:

  • fixrepo - repository reset
  • hg status - see states of files
  • hg add - adds files to repository
  • hg commit -m “message” - commits to repository with a message
  • hg push - pushes files to repository

Raspberry Pi:

  • sudo shutdown -h now - shutdown Pi
  • gpio readall - displays the status of the General Purpose Input Output pins on the Pi
  • gpio mode pinNumber Status - sets the pin number to IN or OUT
  • gpio write pinNumber Status - sets the value of the pin number to 1(one) or 0(zero)
notes/c4eng.txt · Last modified: 2019/10/07 13:16 by mfaucet2