---

## Zadanie 4

seq 1 15 > raport.txt
cat raport.txt
less raport.txt
head -n 5 raport.txt
tail -n 5 raport.txt

## Zadanie 5

cat << 'EOF' > serwer.txt
Server01 IP: 192.168.1.1 Status: Active Service: SSH
Server02 IP: 192.168.1.2 Status: inactive Service: HTTP
Server03 IP: 192.168.1.3 Status: Active Service: FTP
Backup_Server IP: 192.168.1.10 Status: Maintenance
Mail_Server IP: 192.168.1.11 Status: ACTIVE Service: SMTP
Server04 IP: 192.168.1.4 Status: Active Service: DNS
Server05 IP: 192.168.1.5 Status: Inactive Service: DHCP
Database_Server IP: 192.168.1.20 Status: Active Service: MySQL
Server06 IP: 192.168.1.6 Status: Active Service: SSH
Web_Server IP: 192.168.1.21 Status: Active Service: HTTPS
Server07 IP: 192.168.1.7 Status: active Service: FTP
Server08 IP: 192.168.1.8 Status: Active Service: DNS
Proxy_Server IP: 192.168.1.30 Status: Active Service: HTTP
Server09 IP: 192.168.1.9 Status: Maintenance Service: SSH
Server10 IP: 192.168.1.12 Status: Inactive Service: HTTP
EOF

grep "Active" serwer.txt
grep -i "active" serwer.txt
grep -c "SSH" serwer.txt

## Zadanie 6

touch ~/linux/lekcja1/testowy.txt ~/linux/lekcja2/archiwum.zip ~/linux/materiały/foto.jpg
find ~ -name "testowy.txt"
find ~/linux -name "*.txt"
find ~/linux -name "test*"
find ~ -type d -name "linux"

## Zadanie 7

mkdir -p ~/projekt-linux/{dokumentacja,logi,backup,testy,testy/temp_dir}
touch ~/projekt-linux/dokumentacja/instrukcja.txt ~/projekt-linux/dokumentacja/plan.txt
touch ~/projekt-linux/testy/test1.txt ~/projekt-linux/testy/test2.txt ~/projekt-linux/testy/old_test.txt
touch ~/projekt-linux/backup/stary_backup.txt

cp ~/projekt-linux/dokumentacja/instrukcja.txt ~/projekt-linux/backup/
mv ~/projekt-linux/dokumentacja/plan.txt ~/projekt-linux/testy/
mv ~/projekt-linux/testy/plan.txt ~/projekt-linux/testy/nowy_plan.txt

rm ~/projekt-linux/testy/test1.txt ~/projekt-linux/testy/test2.txt
rmdir ~/projekt-linux/testy/temp_dir

cat << 'EOF' > ~/projekt-linux/logi/system.log
2026-10-01 INFO: System started successfully.
2026-10-01 WARNING: Low disk space.
2026-10-01 ERROR: Connection failed.
EOF

grep "INFO" ~/projekt-linux/logi/system.log
grep "WARNING" ~/projekt-linux/logi/system.log
grep "ERROR" ~/projekt-linux/logi/system.log

head -n 2 ~/projekt-linux/logi/system.log
tail -n 2 ~/projekt-linux/logi/system.log
less ~/projekt-linux/logi/system.log

find ~/projekt-linux -name "*.txt"

Нужны ли текстовые ответы на вопросы (разница между командами, ошибки доступа) из этих заданий в таком же кратком виде?