💻 Command Reference

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Command-Line Utilities

• Tar (extract):
  tar -xzvf filename.tar.gz

• Connect to WiFi(nmcli):
  nmcli device wifi connect "WIFI_NAME" password "PASSWORD" ifname wlp2s0

• Set Brightness(xrandr):
  xrandr --output HDMI-1 --brightness 0.8
xrandr --output eDP-1 --brightness 0.8

• Zip/Unzip:
  zip -r zipfilename.zip directoryname
zip zipfilename.zip *
unzip zipfilename.zip -d zipfilename

• Grep:
  grep "brightness" commands.html

• Find:
  find /home/user -name "*.zip"

• Pipe:
  ls -l | grep ".zip"

• Less:
  less large_file.log

• Head/Tail:
  head -n 10 filename.txt
tail -n 10 filename.txt

• Sed (find & replace):
  sed 's/0.8/0.9/g' commands.html

• Awk (print column):
  ls -l | awk '{print $9}' Note: This prints the 9th column (filenames) from the `ls -l` output.

• Redirect (overwrite):
  ls > file_list.txt

• Redirect (append):
  echo "New command added" >> commands.html

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yt-dlp useful commands

Might require --cookies-from-browser <BROWSER>

• Best Audio Quality (Opus):
  yt-dlp --restrict-filenames -P "~/Downloads/YouTube" -o "%(title)s-%(id)s.%(ext)s" -f "bestaudio" -x --no-playlist --audio-format opus <URL>

• Specific Video+Audio Quality (WebM in 1080p)
  yt-dlp --restrict-filenames -P "~/Downloads/YouTube" -o "%(title)s-%(height)sp-%(id)s.%(ext)s" -f "bestvideo[height=1080]+bestaudio" --no-playlist --merge-output-format webm <URL>

• Best Video+Audio Quality (WebM):
  yt-dlp --restrict-filenames -P "~/Downloads/YouTube" -o "%(title)s-%(height)sp-%(id)s.%(ext)s" -f "bestvideo+bestaudio" --no-playlist --merge-output-format webm <URL>