#set text(font: "FreeSans")
#set page(margin: 1cm)

#show link: item => [
  #text(blue)[#item]
]

#show raw.where(block: true): item => [
  #text(size: 0.8em)[#block(
      inset: 4pt,
      stroke: luma(60%) + .5pt,
      fill: luma(95%),
      radius: 3pt,
    )[#item]]
]

#let comment(com) = {
  text(size: 0.75em, style: "italic", fill: rgb(64, 90, 95))[#com]
}


#let answer(ans) = {
  align(center)[#block(
      inset: 4pt,
      stroke: blue + .5pt,
      fill: rgb(0, 149, 255, 5%),
      radius: 3pt,
    )[#ans]]
}

#align(center)[#text(size: 1.3em)[= CS 3424 Quiz - Week 2]]
#align(center)[
  #("Price Hiller", "zfp106", "Quiz 1", "CS 3424").join(" ⋄ ")
  #v(-.5em)
  #text(size: 0.75em)[#block(
      inset: 4pt,
      radius: 1pt,
      stroke: luma(70%) + .2pt,
      width: 40%,
      fill: luma(95%),
    )[#par(leading: .4em)[If you are interested in viewing the source code of this document, you can do so
        by clicking #link("https://git.orion-technologies.io/Price/college/src/branch/Development/Summer-2024/CS-3424/Quizzes/Quiz-1/Assignment.typ", "here.")]]]
  #v(-.5em)
  #line(length: 100%, stroke: (dash: "densely-dotted"))
  #v(-.5em)
]

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

  #answer[
    #comment[Only for the files in the current directory:]
    ```bash
    echo A*.zip
    ```
    #comment[For all the files on the system that the user has access to:]

    ```bash
    # Searching for all files on the system that the current user has access
    # to, VERY SLOW
    find / -type f -name "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"
    ```


    #comment[This assumes the `${HOME}/courses/cs3424/assignments` directory already exists.]
  ]

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
    ```

    #comment[Assuming the `output.txt` file exists.]
  ]

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=rx,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 000000000000000000000000000000000000000000000000000000000000000000764 file1
    ```

    #comment[The above is, in fact, a valid octal value to pass to `chmod`.]

    #comment[See below for what I assume is the "expected" answer:]

    ```bash
    chmod 0764 file1
    ```
  ]