reading-notes

The Command Line

What is the terminal?
- A text based interface that allows you to enter commands by typing them
What is a shell, bash?
- A part of the OS that defines how the terminal will behave and look after running commands
- BASH = Bourne again shell

pwd = present working directory = where am I now?
ls [options][location] = list = what is in my current directory?
- Options
  - -l = list format
  - -a = all files, including hidden items
Paths
- Absolute = type in the exact path for where you want to go
- Relative = type in directions that are relative to the current location
- ~ = go straight to home directory
- ./ = current directory
- ../ = go back one to parent directory
cd [location] = change directory = change to [location]

Everything is a file in Linux
.exe = executable file or program
.txt = text file
.png, .gif, .jpg = image
file [path] = tell me what type of file this is
Spaces in file names
- Must put '' around files with spaces in their names
  - cd 'Holiday Photos'
  - Alternatively, can use ‘`
    - cd Holiday\ Photos

man ls
- Essentially opens the operating manual for the command line interface
man -k <search term>
- Search the manual for the term
/<term>
- Within a manual page, search for the term
n
- After performing a search within a manual page, select the next item found

mkdir [options] <Directory Name> = make this directory
- Options
  - -p = make parent directories as needed
  - -v = makes mkdir tell us what it is doing (i.e. it will say created directory: <name>)
rmdir [options] <Directory Name> = delete a directory
touch <file name> = create a file
cp [options] <source> <destination> = copy this source and move it to destination
mv [options] <source> <destination> = move a file from source to destination
- NOTE: Can use mv to rename a file if the destination is the same directory as the source
rm [options] <file> = remove file