Chapter 1 — Command Line Basics — Solutions

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.

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# 1 and 2
name="Mohamed"
surname="Ati"
age="23"
job="programmer"
 
echo $name
echo $surname
echo $age
echo $job
 
# 3
echo "Hello everyone! My name is $name $surname. I am $age years old, and I work as a $job."
 
# 4
history
 
# 5
city="Istanbul"
echo "$name $surname, $age, $job, lives in $city"
 
# 6
echo 'my variable is called $name'
 
# 7
touch "my file.txt"
rm "my file.txt"
 
# 8
# type   cd Doc   then press Tab , it becomes   cd Documents/
 
# 9
# press ctrl + r , then start typing   echo
# keep pressing ctrl + r to go further back through the matches
# Enter runs it, the arrow keys let u edit it first

output of 3:

Hello everyone! My name is Mohamed Ati. I am 23 years old, and I work as a programmer.

output of 6:

my variable is called $name

• in step 6 the single quotes are the whole answer. with double quotes u would get my variable is called ati.
• in step 7, without the quotes rm my file.txt would try to delete 2 files called my and file.txt, and complain that neither one exists.

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