Your Guide to Basic Linux Commands Day04

cat

Today We are going to take a look at the cat command and its types.It's a universal command and can be used in many ways.In the first example , you can use it to display the contents of a file.
Example:
cat file01.txt

concatenate

You can also use cat to concatenate multiple files into a single bigger file.Try the commands below one by one
Example:

echo one > part1
echo two > part2
echo three > part3
cat part1 part2 part3
cat all

Here the echo command returns the input given that is one and this command is saved in part 1 file and the same for part2 and part3. This is then concatenated together using cat command and displayed using cat all

Createfiles

The cat command can also be used to create a file and allows you to write until you use ctrl+d which will send an EOF(End Of File) command and save the file.

Example:
cat > file86.txt

Copyfiles

The same cat command can also be used to copy a file.

Example:
cat file86.txt > file95.txt

tac

This is the reverse of the cat display command which will display the contents of the file in reverse order.
Example:
tac file86.txt

Wrapping up

This will be all the commands for today.We will be going more into arguements and control operators next time. Have fun learning