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feat(left): add subject, test and solution for the exercise

pull/1724/head
miguel 2 years ago committed by MSilva95
parent
commit
8995643d53
  1. 21
      sh/tests/left/facts
  2. 30
      sh/tests/left_test.sh
  3. 1
      sh/tests/solutions/left.sh
  4. 29
      subjects/devops/left/README.md
  5. 23
      subjects/devops/left/facts

21
sh/tests/left/facts

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10 random facts
- Avocados are a fruit, not a vegetable. They're technically considered a single-seeded berry, believe it or not.
- The Eiffel Tower can be 15 cm taller during the summer, due to thermal expansion meaning the iron heats up, the particles gain kinetic energy and take up more space.
- Trypophobia is the fear of closely-packed holes. Or more specifically, "an aversion to the sight of irregular patterns or clusters of small holes or bumps." No crumpets for them, then.
- Australia is wider than the moon. The moon sits at 3400km in diameter, while Australia’s diameter from east to west is almost 4000km.
- 'Mellifluous' is a sound that is pleasingly smooth and musical to hear.
- The Spice Girls were originally a band called Touch. "When we first started [with the name Touch], we were pretty bland," Mel C told The Guardian in 2018. "We felt like we had to fit into a mould."
- Human teeth are the only part of the body that cannot heal themselves. Teeth are coated in enamel which is not a living tissue.
- It's illegal to own just one guinea pig in Switzerland. It's considered animal abuse because they're social beings and get lonely.
- The Ancient Romans used to drop a piece of toast into their wine for good health - hence why we 'raise a toast'.
- The heart of a shrimp is located in its head. They also have an open circulatory system, which means they have no arteries and their organs float directly in blood.

30
sh/tests/left_test.sh

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#!/usr/bin/env bash
# Unofficial Bash Strict Mode
set -euo pipefail
IFS='
'
script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
FILENAME="../student/left.sh"
cd left
# True if FILE exists and is a regular file
if [ -f ${FILENAME} ]; then
# FILE exists and it's not empty
if [ -s ${FILENAME} ]; then
if [[ $(cat $FILENAME | grep echo | wc -l) -ne 0 ]]; then
echo "echo is not allowed in this exercise!"
exit 1
submitted=$(bash $FILENAME)
expected=$(bash ../solutions/left.sh)
diff <(echo "$submitted") <(echo "$expected")
fi
else
echo "The file exist but is empty"
exit 1
fi
else
echo "File does not exist"
exit 1
fi

1
sh/tests/solutions/left.sh

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wc -l <facts

29
subjects/devops/left/README.md

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## left
### Instructions
Create a file `left.sh` that will pass the content of a file `facts` to a command that will return the number of lines in that file.
### Usage
```console
$./left.sh
21
```
### Hints
To pass the content of a file to a command in a shell, you can use the "<" operator followed by the name of the file. For example, to pass the content of a file named "input.txt" to the cat command, you can use the following command:
`cat < input.txt`
The `wc` command is a utility in Unix-like operating systems that is used to count the number of lines, words, and bytes in a file or group of files. The -l option tells wc to only print the line count for each file.
For example, if you have a file called "file.txt" and you want to count the number of lines in the file, you can use the following command:
`wc -l file.txt`
This will print the line count for "file.txt".
> You have to use Man or Google to know more about commands flags, in order to solve this exercise!
> Google and Man will be your friends!

23
subjects/devops/left/facts

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10 random facts
- Avocados are a fruit, not a vegetable. They're technically considered a single-seeded berry, believe it or not.
- The Eiffel Tower can be 15 cm taller during the summer, due to thermal expansion meaning the iron heats up, the particles gain kinetic energy and take up more space.
- Trypophobia is the fear of closely-packed holes. Or more specifically, "an aversion to the sight of irregular patterns or clusters of small holes or bumps." No crumpets for them, then.
- Australia is wider than the moon. The moon sits at 3400km in diameter, while Australia’s diameter from east to west is almost 4000km.
- 'Mellifluous' is a sound that is pleasingly smooth and musical to hear.
EOF
- The Spice Girls were originally a band called Touch. "When we first started [with the name Touch], we were pretty bland," Mel C told The Guardian in 2018. "We felt like we had to fit into a mould."
- Human teeth are the only part of the body that cannot heal themselves. Teeth are coated in enamel which is not a living tissue.
- It's illegal to own just one guinea pig in Switzerland. It's considered animal abuse because they're social beings and get lonely.
- The Ancient Romans used to drop a piece of toast into their wine for good health - hence why we 'raise a toast'.
- The heart of a shrimp is located in its head. They also have an open circulatory system, which means they have no arteries and their organs float directly in blood.
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