do the assignment first. reading the answer is not the same as doing it, and u will feel like u learned it when u didn’t.
# 1
mkdir ch3-practice
cd ch3-practice
echo "cat" > animals.txt
echo "Dog" >> animals.txt
echo "bird" >> animals.txt
echo "cat food" >> animals.txt
# 2
grep "cat" animals.txt
# 3
grep -i "dog" animals.txt
# 4
grep -v "cat" animals.txt
# 5
grep -n "cat" animals.txt
# 6
find ~ -type f -name "*.txt"
# 7
find ~ -type d -name "ch*"output of 2:
cat
cat food
output of 4:
Dog
bird
output of 5:
1:cat
4:cat food
- notice in step 1 the first line uses
>and the rest use>>. the first one creates the file, the rest append to it. if u used>every time u would end up with only the last line. this is Chapter 8 material, u are just seeing it early.