Essential Linux Commands
📂To view what's written in a file📄
The 'cat' command is commonly used to display the contents of a file.
cat filename
🔒To change the access permissions of files 🔑
The 'chmod' command to change the access permissions of a file.
chmod [permissions] filename
📖To check which commands you have run till now.
history
🗑️To remove a directory/folder🗃️
rm -r directory name
📝 To create a fruits.txt file and to view the content🖋️
touch fruits.txt
cat fruits.txt
📄Add content in devops.txt (One in each line) - Apple, Mango, Banana, Cherry, Kiwi, Orange, Guava
echo -e "Apple\nMango\nBanana\nCherry\nKiwi\nOrange\nGuava" > devops.txt
👀 Show only the top three fruits from the file📄
head 3 devops.txt
👀Show only the bottom three fruits from the file📄
tail 3 devops.txt
🎨To create another file Colors.txt and to view the content🌈
touch Colors.txt
cat Colors.txt
🌟Add content in Colors.txt (One in each line) - Red, Pink, White, Black, Blue, Orange, Purple and Grey🎨
echo "Red\nPink\nWhite\nBlack\nBlue\nOrange\nPurple\nGrey" > Colors.txt
📊To find the difference between fruits.txt and Colors.txt file
diff fruits.txt Colors.txt