Linux

find: to locate a specific file by name or extension

• syntax:
  find options starting/path expression
• example

  find /home -name *.jpg 	# to find all .jpg files in the /home and sub-directories.
  

cp: to copy a file from one place to another

• syntax:
  cp SOURCE DEST
  cp SOURCE DIRECTORY
  cp SOURCE1 SOURCE2 SOURCE3 SOURCEn DIRECTORY
  cp [OPTION] SOURCE DEST
  cp [OPTION] SOURCE DIRECTORY\

• example:

  cp file.doc newfile.doc       #to make copy of a file
  cp file.doc /temp             #to copy file to another directory
  cp main.c demo.h lib.c /temp  #to copy multiple files
  cp * /temp                    #to copy all files
  

rm: to remove or delete a file or directory

• syntax:
  rm filename
  rm file1 file2 file3
  rm [OPTION] filename
  rmdir EMPTY_DIRECTORY
  rm -d EMPTY_DIRECTORY
  rm -r NON_EMPTY_DIRECTORY #r stands for recursive
  rm -r NON_EMPTY_DIR1 NON_EMPTY_DIR2\

• options:
  i : interactive, to confirm each file before deleting
  f : force, to remove files without prompting even if files are write-protected v : verbose, to show files being removed one by one r : recursive, copy all the subdirectories and files in a given directory and preserve the tree structure

• example:

  rm file.doc
  rm file1.doc file2.pdf
  rm *.pdf             #remove all pdf files
  rm -i file.doc
  rm -f file.doc
  rm -r temp
  rm -rf temp          #VERY DANGEROUS!!! Removes a directory and all its contents without prompting
  rm -r *              #VERY DANGEROUS!!! This will delete every file and every directory you have.
  

mv: to move a file from one directory location to another. It also lets you rename a file

• syntax:
  mv [OPTION] old_filename new_filename
  mv SOURCE DIRECTORY\
• example:

  mv file1.pdf FILE1.pdf    #to rename a file
  mv file.pdf temp          #to copy the pdf to directory temp
  

  apt-get: to install or remove packages from linux

• syntax:
  sudo apt-get install PACKAGE_NAME

nvidia-smi -L: This command shows the list of GPUs present on your machine.