#set text(font: "FreeSans")
#align(center)[#text(size: 1.3em)[= CS 3424 Quiz - Week 2]]

#let info = ("Price Hiller", "zfp106", "Quiz 1", "CS 3424")

#let subheading = {
  align(center)[#grid(
      columns: 4,
      gutter: 12pt,
      align: center,

    )]
}

#align(center)[
  #("Price Hiller", "zfp106", "Quiz 1", "CS3424").join(" ⋄ ")
  #line(length: 100%)
]

#let answer(ans) = {
  align(center)[#block(
      inset: 5pt,
      stroke: blue + .5pt,
      fill: rgb(0, 149, 255, 5%),
      radius: 4pt,
    )[#ans]]
}

1. Show a command to list all files beginning with 'A' and ending with a .zip extension

  #answer[
    ```bash
    echo A*.zip
    ```
  ]

2. Create an alias, `systems`, to change your current directory to *courses/cs3424/assignments* within your home directory.

  #answer[
    ```bash
    alias systems="cd ${HOME}/courses/cs3424/assignments"
    ```
  ]

3. Use symbolic modes to change the permissions of `output`.txt to remove execution rights from the group and other.

  #answer[
    ```bash
    chmod "g-x,o-x" output.txt
    ```
  ]

4. Use symbolic modes to change the permissions of all `.c` files in the current directory so the owner has read and execute access only, add read and write access to the group, and give everyone else reading access only.

  #answer[
    ```bash
    chmod "u=rwx,g+rw,o=r" *.c
    ```
  ]

5. Use octal notation to update `file1` to have read, write and execute access for the owner, read and write access for the group, and read access for everyone else. Hint for the octal values:

  #align(center)[#table(
      columns: 4,
      align: horizon,
      [octal], [read], [write], [execute],
      [7], [1], [1], [1],
      [6], [1], [1], [0],
      [5], [1], [0], [1],
      [4], [1], [0], [0],
      [3], [0], [1], [1],
      [2], [0], [1], [0],
      [1], [0], [0], [1],
      [0], [0], [0], [0],
    )]

#answer[
  ```bash
  chmod 0000000000000000000000000000000000000000000000000000000000000000000764 file1
  ```

  #text(size: 0.75em)[_The above is, in fact, a valid octal value to pass to chmod._]
]