This Is Your Brain On Informatics: Linux Commands

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General Linux Command Info

  • Almost every single command should have an argument (an input for a function)
  • A filename in Linux refers to both a file's name and a directory's name

Common Linux Commands

Command Syntax Description
cat cat filename Display file’s contents to the standard output device (usually your monitor)
cd cd /pathname Change to the given directory
chmod* chmod options mode filename Changes a file's permissions.
chown* chown private_owner:group_owner filename Changes ownership of the file
clear clear Clears the screen by scrolling (does not delete anything)
cp cp options source destination Copies a file from the source to the destination
find find /pathname string Starts at the indicated directory and searches for the string in a filename
grep grep options pattern filename Searches for the pattern in the file
ll ll /pathname List Long: lists the details of the entire directory or file indicated
ln ln options source destination Link: creates a shortcut
ls ls /pathname Lists the files and directories in a given directory