This repository contains solutions to a series of tasks related to loops, conditions, and parsing in Bash scripting.
- Create a SSH RSA key pair
- For Best School
- While Best School loop
- Until Best School loop
- If 9, say Hi!
- 4 bad luck, 8 is your chance
- Superstitious numbers
- Clock
- For ls
- To file, or not to file
- FizzBuzz
- Read and cut
- Tell the story of passwd
- Let's parse Apache logs
- Dig the data
- Follow the provided instructions to create an SSH RSA key pair.
- Share your public key in the file
0-RSA_public_key.pub. - Fill the SSH public key field of your intranet profile with the generated public key.
- Keep the private key secure for future server access.
Write a Bash script that displays "Best School" 10 times using a for loop.
#!/usr/bin/env bash
# This script is displaying "Best School" 10 times
for i in {1..10}; do
echo "Best School"
doneWrite a Bash script that displays "Best School" 10 times using a while loop.
#!/usr/bin/env bash
# This script is displaying "Best School" 10 times
count=0
while [ $count -lt 10 ]; do
echo "Best School"
((count++))
doneWrite a Bash script that displays "Best School" 10 times using an until loop.
#!/usr/bin/env bash
# This script is displaying "Best School" 10 times
count=0
until [ $count -ge 10 ]; do
echo "Best School"
((count++))
doneWrite a Bash script that displays "Best School" 10 times, but for the 9th iteration, displays "Hi" on a new line.
#!/usr/bin/env bash
# This script displays "Best School" 10 times, with "Hi" on the 9th iteration
count=0
while [ $count -lt 10 ]; do
if [ $count -eq 8 ]; then
echo "Hi"
else
echo "Best School"
fi
((count++))
doneWrite a Bash script that loops from 1 to 10 and:
- Displays "bad luck" for the 4th loop iteration.
- Displays "good luck" for the 8th loop iteration.
- Displays "Best School" for the other iterations.
#!/usr/bin/env bash
# This script displays messages based on loop iteration
for i in {1..10}; do
if [ $i -eq 4 ]; then
echo "bad luck"
elif [ $i -eq 8 ]; then
echo "good luck"
else
echo "Best School"
fi
doneWrite a Bash script that displays numbers from 1 to 20 and:
- Displays "4 and then bad luck from China" for the 4th loop iteration.
- Displays "9 and then bad luck from Japan" for the 9th loop iteration.
- Displays "17 and then bad luck from Italy" for the 17th loop iteration.
#!/usr/bin/env bash
# This script displays numbers with superstitions
for i in {1..20}; do
case $i in
4)
echo "$i and then bad luck from China"
;;
9)
echo "$i and then bad luck from Japan"
;;
17)
echo "$i and then bad luck from Italy"
;;
*)
echo "$i"
;;
esac
doneWrite a Bash script that displays the time for 12 hours and 59 minutes.
#!/usr/bin/env bash
# This script displays the time for 12 hours and 59 minutes
hour=0
while [ $hour -lt 12 ]; do
echo "Hour: $hour"
for minute in {1..59}; do
echo "$minute"
done
((hour++))
doneWrite a Bash script that displays the content of the current directory in a list format, where only the part of the name after the first dash is displayed.
#!/usr/bin/env bash
# This script displays the content of the current directory in a list format
for file in *; do
echo "${file#*-}"
doneWrite a Bash script that gives you information about the holbertonschool file.
#!/usr/bin/env bash
# This script gives information about the holbertonschool file
file="holbertonschool"
if [ -e "$file" ]; then
if [ -f "$file" ]; then
echo "$file exists and is a regular file"
else
echo "$file exists but is not a regular file"
fi
else
echo "$file does not exist"
fiWrite a Bash script that displays numbers from 1 to 100, but:
- Displays "Fizz" for multiples of 3.
- Displays "Buzz" for multiples of 5.
- Displays "FizzBuzz" for multiples of both 3 and 5.
#!/usr/bin/env bash
# This script displays numbers from 1 to 100 with Fizz, Buzz, and FizzBuzz conditions
for i in {1..100}; do
if [ $((i % 3)) -eq 0 ] && [ $((i % 5)) -eq 0 ]; then
echo "FizzBuzz"
elif [ $((i % 3)) -eq 0 ]; then
echo "Fizz"
elif [ $((i % 5)) -eq 0 ]; then
echo "Buzz"
else
echo "$i"
fi
doneWrite a Bash script that displays the content of the file /etc/passwd and:
- Displays only the username.
- Displays the user's home directory.
- Displays the user's default shell.
#!/usr/bin/env bash
# This script displays information from /etc/passwd
while IFS=':' read -r user x uid gid desc home shell; do
echo "Username: $user"
echo "Home directory: $home"
echo "Default shell: $shell"
done < /etc/passwdWrite a Bash script that displays the content of /etc/passwd and:
- Displays only lines containing "/bin/bash".
- Displays only the username and description for those lines.
#!/usr/bin/env bash
# This script displays information from /etc/passwd for users with /bin/bash as their shell
while IFS=':' read -r user x uid gid desc home shell; do
if [ "$shell" = "/bin/bash" ]; then
echo "Username: $user"
echo "Description: $desc"
fi
done < /etc/passwdWrite a Bash script that displays the visitor IP along with the HTTP code from an Apache log file.
#!/usr/bin/env bash
# This script parses Apache logs and displays visitor IP with HTTP code
awk '{print $1, $9}' /var/log/apache2/access.logNow that you’ve parsed the Apache log file, let’s sort the data so you can get a better idea of what is going on.
./103-dig_the-data | head -n 10Requirements:
- The exact format must be:
OCCURRENCE_NUMBER IP HTTP_CODE - In list format
- Ordered from the greatest to the lowest number of occurrences
- GitHub Repository: alx-system_engineering-devops
- Directory: 0x04-loops_conditions_and_parsing
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