84 lines
2.0 KiB
Typst
84 lines
2.0 KiB
Typst
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#set text(font: "FreeSans")
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#align(center)[#text(size: 1.3em)[= CS 3424 Quiz - Week 2]]
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#let info = ("Price Hiller", "zfp106", "Quiz 1", "CS 3424")
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#let subheading = {
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align(center)[#grid(
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columns: 4,
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gutter: 12pt,
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align: center,
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)]
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}
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#align(center)[
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#("Price Hiller", "zfp106", "Quiz 1", "CS3424").join(" ⋄ ")
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#line(length: 100%)
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]
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#let answer(ans) = {
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align(center)[#block(
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inset: 5pt,
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stroke: blue + .5pt,
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fill: rgb(0, 149, 255, 5%),
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radius: 4pt,
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)[#ans]]
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}
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1. Show a command to list all files beginning with 'A' and ending with a .zip extension
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#answer[
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```bash
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echo A*.zip
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```
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]
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2. Create an alias, `systems`, to change your current directory to *courses/cs3424/assignments* within your home directory.
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#answer[
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```bash
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alias systems="cd ${HOME}/courses/cs3424/assignments"
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```
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]
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3. Use symbolic modes to change the permissions of `output`.txt to remove execution rights from the group and other.
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#answer[
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```bash
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chmod "g-x,o-x" output.txt
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```
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]
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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.
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#answer[
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```bash
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chmod "u=rwx,g+rw,o=r" *.c
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```
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]
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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:
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#align(center)[#table(
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columns: 4,
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align: horizon,
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[octal], [read], [write], [execute],
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[7], [1], [1], [1],
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[6], [1], [1], [0],
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[5], [1], [0], [1],
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[4], [1], [0], [0],
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[3], [0], [1], [1],
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[2], [0], [1], [0],
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[1], [0], [0], [1],
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[0], [0], [0], [0],
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)]
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#answer[
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```bash
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chmod 0000000000000000000000000000000000000000000000000000000000000000000764 file1
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```
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#text(size: 0.75em)[_The above is, in fact, a valid octal value to pass to chmod._]
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]
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